======================================
| xx__-> [    9.225060][  T201] ------------[ cut here ]------------
| [    9.225366][  T201] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/201
| [    9.225667][  T201] Modules linked in:
| [    9.226205][  T201] Tainted: [W]=WARN
[    9.226370][  T201] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.226584][  T201] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.226806][  T201] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.227408][  T201] RSP: 0018:ffa0000000957a80 EFLAGS: 00010286
[    9.227704][  T201] RAX: 00000000ffffffa6 RBX: ff11000008d2b700 RCX: 1ff400000012af16
[    9.228001][  T201] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000008d2b7bc
[    9.228320][  T201] RBP: ff1100000e134000 R08: 1fe22000011a56f9 R09: ff1100000f6b2e80
[    9.228631][  T201] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    9.228876][  T201] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e134000
[    9.229126][  T201] FS:  00007fedfc954840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[    9.229430][  T201] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.229646][  T201] CR2: 0000000000479648 CR3: 000000000f566003 CR4: 0000000000771ef0
[    9.229893][  T201] PKRU: 55555554
[    9.230040][  T201] Call Trace:
[    9.230195][  T201]  <TASK>
[    9.230318][  T201]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.230499][  T201]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.230682][  T201]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.230834][  T201]  register_netdevice (net/core/dev.c:11488)
[    9.231017][  T201]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.231242][  T201]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    9.231489][  T201]  register_netdev (net/core/dev.c:11552)
[    9.231671][  T201]  loopback_net_init (drivers/net/loopback.c:218)
[    9.231856][  T201]  ops_init (net/core/net_namespace.c:137)
[    9.232007][  T201]  setup_net (net/core/net_namespace.c:446)
[    9.232169][  T201]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.232358][  T201]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.232540][  T201]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.232722][  T201]  copy_net_ns (net/core/net_namespace.c:579)
[    9.232905][  T201]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.233091][  T201]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.233294][  T201]  ksys_unshare (kernel/fork.c:3243)
[    9.233478][  T201]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.233659][  T201]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.233839][  T201]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.234024][  T201]  ? __ia32_sys_open (fs/open.c:1374)
[    9.234219][  T201]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.234409][  T201]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.234591][  T201]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.234773][  T201]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.234957][  T201]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.235137][  T201]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.235366][  T201] RIP: 0033:0x7fedfcc16bcb
[    9.235558][  T201] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    9.236074][  T201] RSP: 002b:00007ffe0a0b7ce8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    9.236340][  T201] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fedfcc16bcb
[    9.236586][  T201] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.236830][  T201] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    9.237074][  T201] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe0a0b9f10
[    9.237341][  T201] R13: 0000000000000001 R14: 00007fedfc9546f8 R15: 00007ffe0a0ba867
| [    9.242420][  T201] ------------[ cut here ]------------
| [    9.242607][  T201] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/201
| [    9.242886][  T201] Modules linked in:
| [    9.243364][  T201] Tainted: [W]=WARN
[    9.243512][  T201] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.243728][  T201] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.243949][  T201] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.244481][  T201] RSP: 0018:ffa0000000957918 EFLAGS: 00010286
[    9.244696][  T201] RAX: 00000000ffffffa6 RBX: ff110000092b4040 RCX: 1ff400000012aee9
[    9.244941][  T201] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000092b40fc
[    9.245704][  T201] RBP: ff1100000a489000 R08: 1fe2200001256821 R09: ff1100000f6b2e80
[    9.246005][  T201] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    9.246320][  T201] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a489000
[    9.246630][  T201] FS:  00007fedfc954840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[    9.246963][  T201] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.247241][  T201] CR2: 0000000000479648 CR3: 000000000f566003 CR4: 0000000000771ef0
[    9.247551][  T201] PKRU: 55555554
[    9.247752][  T201] Call Trace:
[    9.247952][  T201]  <TASK>
[    9.248119][  T201]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.248375][  T201]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.248609][  T201]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.248812][  T201]  register_netdevice (net/core/dev.c:11488)
[    9.249045][  T201]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.249327][  T201]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    9.249564][  T201]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[    9.249799][  T201]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[    9.250029][  T201]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[    9.250272][  T201]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[    9.250511][  T201]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[    9.250744][  T201]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[    9.250976][  T201]  ops_init (net/core/net_namespace.c:137)
[    9.251191][  T201]  setup_net (net/core/net_namespace.c:446)
[    9.251389][  T201]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.251568][  T201]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.251750][  T201]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.251931][  T201]  copy_net_ns (net/core/net_namespace.c:579)
[    9.252113][  T201]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.252315][  T201]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.252498][  T201]  ksys_unshare (kernel/fork.c:3243)
[    9.252697][  T201]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.252875][  T201]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.253054][  T201]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.253248][  T201]  ? __ia32_sys_open (fs/open.c:1374)
[    9.253435][  T201]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.253613][  T201]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.253809][  T201]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.253990][  T201]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.254181][  T201]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.254367][  T201]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.254576][  T201] RIP: 0033:0x7fedfcc16bcb
[    9.254760][  T201] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    9.255306][  T201] RSP: 002b:00007ffe0a0b7ce8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    9.255552][  T201] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fedfcc16bcb
[    9.255797][  T201] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.256056][  T201] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    9.256338][  T201] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe0a0b9f10
[    9.256596][  T201] R13: 0000000000000001 R14: 00007fedfc9546f8 R15: 00007ffe0a0ba867
| [    9.267078][  T201] ------------[ cut here ]------------
| [    9.267276][  T201] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/201
| [    9.267568][  T201] Modules linked in:
| [    9.268090][  T201] Tainted: [W]=WARN
[    9.268252][  T201] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.268472][  T201] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.268696][  T201] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.269306][  T201] RSP: 0018:ffa00000009578f8 EFLAGS: 00010286
[    9.269541][  T201] RAX: 00000000ffffffa6 RBX: ff110000090663c0 RCX: 1ff400000012aee5
[    9.269787][  T201] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000906647c
[    9.270035][  T201] RBP: ff110000052c1000 R08: 1fe220000120cc91 R09: ff1100000f6b2e80
[    9.270304][  T201] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    9.270562][  T201] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000052c1000
[    9.270813][  T201] FS:  00007fedfc954840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[    9.271096][  T201] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.271334][  T201] CR2: 0000000000479648 CR3: 000000000f566003 CR4: 0000000000771ef0
[    9.271587][  T201] PKRU: 55555554
[    9.271735][  T201] Call Trace:
[    9.271885][  T201]  <TASK>
[    9.272003][  T201]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.272198][  T201]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.272391][  T201]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.272547][  T201]  register_netdevice (net/core/dev.c:11488)
[    9.272734][  T201]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.272950][  T201]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    9.273137][  T201]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[    9.273343][  T201]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[    9.273527][  T201]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[    9.273712][  T201]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[    9.273900][  T201]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[    9.274084][  T201]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[    9.274282][  T201]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[    9.274479][  T201]  vti_init_net (net/ipv4/ip_vti.c:517)
[    9.274664][  T201]  ops_init (net/core/net_namespace.c:137)
[    9.274817][  T201]  setup_net (net/core/net_namespace.c:446)
[    9.274969][  T201]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.275163][  T201]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.275357][  T201]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.275543][  T201]  copy_net_ns (net/core/net_namespace.c:579)
[    9.275727][  T201]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.275915][  T201]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.276099][  T201]  ksys_unshare (kernel/fork.c:3243)
[    9.276301][  T201]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.276485][  T201]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.276670][  T201]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.276856][  T201]  ? __ia32_sys_open (fs/open.c:1374)
[    9.277040][  T201]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.277237][  T201]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.277427][  T201]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.277609][  T201]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.277792][  T201]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.277977][  T201]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.278209][  T201] RIP: 0033:0x7fedfcc16bcb
[    9.278403][  T201] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    9.278923][  T201] RSP: 002b:00007ffe0a0b7ce8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    9.279188][  T201] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fedfcc16bcb
[    9.279445][  T201] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.279694][  T201] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    9.279941][  T201] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe0a0b9f10
[    9.280208][  T201] R13: 0000000000000001 R14: 00007fedfc9546f8 R15: 00007ffe0a0ba867
| [    9.284932][  T201] ------------[ cut here ]------------
| [    9.285119][  T201] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/201
| [    9.285422][  T201] Modules linked in:
| [    9.285890][  T201] Tainted: [W]=WARN
[    9.286037][  T201] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.286263][  T201] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.286492][  T201] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.287010][  T201] RSP: 0018:ffa0000000957a78 EFLAGS: 00010286
[    9.287747][  T201] RAX: 00000000ffffffa6 RBX: ff11000009067a80 RCX: 1ff400000012af15
[    9.288053][  T201] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009067b3c
[    9.288371][  T201] RBP: ff110000102c1000 R08: 1fe220000120cf69 R09: ff1100000f6b2e80
[    9.288671][  T201] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    9.288970][  T201] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000102c1000
[    9.289283][  T201] FS:  00007fedfc954840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[    9.289635][  T201] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.289902][  T201] CR2: 0000000000479648 CR3: 000000000f566003 CR4: 0000000000771ef0
[    9.290215][  T201] PKRU: 55555554
[    9.290418][  T201] Call Trace:
[    9.290617][  T201]  <TASK>
[    9.290787][  T201]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.291022][  T201]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.291267][  T201]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.291477][  T201]  register_netdevice (net/core/dev.c:11488)
[    9.291712][  T201]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.291978][  T201]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.292226][  T201]  register_netdev (net/core/dev.c:11552)
[    9.292475][  T201]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[    9.292713][  T201]  ops_init (net/core/net_namespace.c:137)
[    9.292915][  T201]  setup_net (net/core/net_namespace.c:446)
[    9.293117][  T201]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.293371][  T201]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.293609][  T201]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.293829][  T201]  copy_net_ns (net/core/net_namespace.c:579)
[    9.294013][  T201]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.294213][  T201]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.294399][  T201]  ksys_unshare (kernel/fork.c:3243)
[    9.294581][  T201]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.294762][  T201]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.294945][  T201]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.295128][  T201]  ? __ia32_sys_open (fs/open.c:1374)
[    9.295334][  T201]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.295517][  T201]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.295697][  T201]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.295878][  T201]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.296059][  T201]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.296255][  T201]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.296475][  T201] RIP: 0033:0x7fedfcc16bcb
[    9.296662][  T201] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    9.297193][  T201] RSP: 002b:00007ffe0a0b7ce8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    9.297450][  T201] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fedfcc16bcb
[    9.297695][  T201] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.297943][  T201] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    9.298204][  T201] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe0a0b9f10
[    9.298458][  T201] R13: 0000000000000001 R14: 00007fedfc9546f8 R15: 00007ffe0a0ba867
| [    9.303229][  T201] ------------[ cut here ]------------
| [    9.303423][  T201] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/201
| [    9.303703][  T201] Modules linked in:
| [    9.304181][  T201] Tainted: [W]=WARN
[    9.304333][  T201] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.304548][  T201] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.304771][  T201] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.305309][  T201] RSP: 0018:ffa0000000957a68 EFLAGS: 00010286
[    9.305527][  T201] RAX: 00000000ffffffa6 RBX: ff110000092b43c0 RCX: 1ff400000012af13
[    9.305773][  T201] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000092b447c
[    9.306019][  T201] RBP: ff1100000a529000 R08: 1fe2200001256891 R09: ff1100000f6b2e80
[    9.306795][  T201] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    9.307101][  T201] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a529000
[    9.307435][  T201] FS:  00007fedfc954840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[    9.307771][  T201] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.308044][  T201] CR2: 0000000000479648 CR3: 000000000f566003 CR4: 0000000000771ef0
[    9.308368][  T201] PKRU: 55555554
[    9.308571][  T201] Call Trace:
[    9.308774][  T201]  <TASK>
[    9.308947][  T201]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.309197][  T201]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.309441][  T201]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.309651][  T201]  register_netdevice (net/core/dev.c:11488)
[    9.309891][  T201]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.310174][  T201]  register_netdev (net/core/dev.c:11552)
[    9.310418][  T201]  sit_init_net (net/ipv6/sit.c:1860)
[    9.310659][  T201]  ops_init (net/core/net_namespace.c:137)
[    9.310864][  T201]  setup_net (net/core/net_namespace.c:446)
[    9.311065][  T201]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.311322][  T201]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.311558][  T201]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.311792][  T201]  copy_net_ns (net/core/net_namespace.c:579)
[    9.311974][  T201]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.312171][  T201]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.312363][  T201]  ksys_unshare (kernel/fork.c:3243)
[    9.312544][  T201]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.312730][  T201]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.312911][  T201]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.313093][  T201]  ? __ia32_sys_open (fs/open.c:1374)
[    9.313299][  T201]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.313482][  T201]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.313663][  T201]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.313845][  T201]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.314026][  T201]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.314225][  T201]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.314448][  T201] RIP: 0033:0x7fedfcc16bcb
[    9.314638][  T201] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    9.315167][  T201] RSP: 002b:00007ffe0a0b7ce8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    9.315427][  T201] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fedfcc16bcb
[    9.315675][  T201] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.315920][  T201] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    9.316178][  T201] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe0a0b9f10
[    9.316431][  T201] R13: 0000000000000001 R14: 00007fedfc9546f8 R15: 00007ffe0a0ba867
| [    9.321722][  T201] ------------[ cut here ]------------
| [    9.321909][  T201] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/201
| [    9.322220][  T201] Modules linked in:
| [    9.322696][  T201] Tainted: [W]=WARN
[    9.322842][  T201] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.323056][  T201] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.323828][  T201] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.324424][  T201] RSP: 0018:ffa0000000957a78 EFLAGS: 00010286
[    9.324692][  T201] RAX: 00000000ffffffa6 RBX: ff1100000c3b7c40 RCX: 1ff400000012af15
[    9.325033][  T201] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c3b7cfc
[    9.325350][  T201] RBP: ff1100000e83c000 R08: 1fe2200001876fa1 R09: ff1100000f6b2e80
[    9.325651][  T201] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    9.325949][  T201] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e83c000
[    9.326267][  T201] FS:  00007fedfc954840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[    9.326611][  T201] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.326879][  T201] CR2: 0000000000479648 CR3: 000000000f566003 CR4: 0000000000771ef0
[    9.327193][  T201] PKRU: 55555554
[    9.327401][  T201] Call Trace:
[    9.327603][  T201]  <TASK>
[    9.327776][  T201]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.328011][  T201]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.328256][  T201]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.328465][  T201]  register_netdevice (net/core/dev.c:11488)
[    9.328699][  T201]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.328964][  T201]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.329212][  T201]  register_netdev (net/core/dev.c:11552)
[    9.329455][  T201]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[    9.329690][  T201]  ops_init (net/core/net_namespace.c:137)
[    9.329877][  T201]  setup_net (net/core/net_namespace.c:446)
[    9.330026][  T201]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.330224][  T201]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.330414][  T201]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.330600][  T201]  copy_net_ns (net/core/net_namespace.c:579)
[    9.330787][  T201]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.330971][  T201]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.331165][  T201]  ksys_unshare (kernel/fork.c:3243)
[    9.331357][  T201]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.331538][  T201]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.331718][  T201]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.331904][  T201]  ? __ia32_sys_open (fs/open.c:1374)
[    9.332090][  T201]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.332291][  T201]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.332471][  T201]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.332651][  T201]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.332831][  T201]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.333013][  T201]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.333242][  T201] RIP: 0033:0x7fedfcc16bcb
[    9.333436][  T201] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    9.333953][  T201] RSP: 002b:00007ffe0a0b7ce8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    9.334219][  T201] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fedfcc16bcb
[    9.334471][  T201] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.334721][  T201] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    9.334965][  T201] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe0a0b9f10
[    9.335226][  T201] R13: 0000000000000001 R14: 00007fedfc9546f8 R15: 00007ffe0a0ba867
| [    9.370124][  T202] ------------[ cut here ]------------
| [    9.370772][  T202] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/202
| [    9.371013][  T202] Modules linked in:
| [    9.371402][  T202] Tainted: [W]=WARN
[    9.371504][  T202] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.371674][  T202] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.371845][  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
[    9.372327][  T202] RSP: 0018:ffa0000000967020 EFLAGS: 00010286
[    9.372496][  T202] RAX: 00000000ffffffa6 RBX: ff1100000c3b71c0 RCX: 1ff400000012cdca
[    9.372691][  T202] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c3b727c
[    9.372888][  T202] RBP: ff1100000e134000 R08: 1fe2200001876e51 R09: ff1100000f180b58
[    9.373084][  T202] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[    9.373293][  T202] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[    9.373493][  T202] FS:  00007f8ecf33c840(0000) GS:ff110000b3c47000(0000) knlGS:0000000000000000
[    9.373723][  T202] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.373889][  T202] CR2: 000000003f187988 CR3: 0000000004daa003 CR4: 0000000000771ef0
[    9.374086][  T202] PKRU: 55555554
[    9.374187][  T202] Call Trace:
[    9.374291][  T202]  <TASK>
[    9.374360][  T202]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.374498][  T202]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.374600][  T202]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.374731][  T202]  __dev_notify_flags (net/core/dev.c:9787)
[    9.374865][  T202]  ? netif_change_name (net/core/dev.c:1495)
[    9.374996][  T202]  ? __dev_change_flags (net/core/dev.c:9752)
[    9.375129][  T202]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[    9.375356][  T202]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.375490][  T202]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[    9.375626][  T202]  netif_change_flags (net/core/dev.c:9820)
[    9.375759][  T202]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[    9.375891][  T202]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    9.376025][  T202]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    9.376221][  T202]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.376394][  T202]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    9.376526][  T202]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.376711][  T202]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    9.376842][  T202]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.376976][  T202]  ? __kernel_text_address (kernel/extable.c:79)
[    9.377109][  T202]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.377320][  T202]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.377452][  T202]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.377584][  T202]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.377716][  T202]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.377848][  T202]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.377981][  T202]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.378113][  T202]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.378363][  T202]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[    9.378497][  T202]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.378630][  T202]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.378903][  T202]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.379039][  T202]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    9.379189][  T202]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.379327][  T202]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.379458][  T202]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.379590][  T202]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.379721][  T202]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.379853][  T202]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.379987][  T202]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.380119][  T202]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.380254][  T202]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.380392][  T202]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.380524][  T202]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.380657][  T202]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.380790][  T202]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.380920][  T202]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.381051][  T202]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.381189][  T202]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.381324][  T202]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.381457][  T202]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.381589][  T202]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.381725][  T202]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.381861][  T202]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    9.381992][  T202]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    9.382126][  T202]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.382264][  T202]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.382401][  T202]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.382535][  T202]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.382669][  T202]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.382801][  T202]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.382936][  T202]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.383069][  T202]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.383206][  T202]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.383376][  T202]  ? move_addr_to_kernel (net/socket.c:258)
[    9.383510][  T202]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.383643][  T202]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.383775][  T202]  ___sys_sendmsg (net/socket.c:2752)
[    9.383906][  T202]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    9.384073][  T202]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.384223][  T202]  __sys_sendmsg (net/socket.c:2784)
[    9.384361][  T202]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.384493][  T202]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    9.384661][  T202]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[    9.384792][  T202]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.384926][  T202]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.385057][  T202]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.385193][  T202]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.385329][  T202]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.385492][  T202] RIP: 0033:0x7f8ecf57608e
[    9.385632][  T202] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    9.386102][  T202] RSP: 002b:00007ffd0c5c6620 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.386312][  T202] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f8ecf57608e
[    9.386510][  T202] RDX: 0000000000000000 RSI: 00007ffd0c5c66d0 RDI: 0000000000000005
[    9.386708][  T202] RBP: 00007ffd0c5c6630 R08: 0000000000000000 R09: 0000000000000000
[    9.386904][  T202] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ea13
[    9.387100][  T202] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd0c5c6da0
| [    9.505207][  T206] ------------[ cut here ]------------
| [    9.505387][  T206] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/206
| [    9.505641][  T206] Modules linked in:
| [    9.506056][  T206] Tainted: [W]=WARN
[    9.506162][  T206] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.506329][  T206] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.506499][  T206] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.506956][  T206] RSP: 0018:ffa0000000967a80 EFLAGS: 00010286
[    9.507121][  T206] RAX: 00000000ffffffa6 RBX: ff110000092b4200 RCX: 1ff400000012cf16
[    9.507328][  T206] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000092b42bc
[    9.507526][  T206] RBP: ff1100000f4c9000 R08: 1fe2200001256859 R09: ff1100000f6b5180
[    9.507749][  T206] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    9.507944][  T206] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f4c9000
[    9.508140][  T206] FS:  00007fb35c85a840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[    9.508382][  T206] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.508543][  T206] CR2: 00007fb35ca5bc20 CR3: 0000000009c08004 CR4: 0000000000771ef0
[    9.508740][  T206] PKRU: 55555554
[    9.508837][  T206] Call Trace:
[    9.508935][  T206]  <TASK>
[    9.509004][  T206]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.509133][  T206]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.509361][  T206]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.509532][  T206]  register_netdevice (net/core/dev.c:11488)
[    9.509664][  T206]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.509827][  T206]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    9.509958][  T206]  register_netdev (net/core/dev.c:11552)
[    9.510087][  T206]  loopback_net_init (drivers/net/loopback.c:218)
[    9.510283][  T206]  ops_init (net/core/net_namespace.c:137)
[    9.510387][  T206]  setup_net (net/core/net_namespace.c:446)
[    9.510485][  T206]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.510612][  T206]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.510745][  T206]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.510876][  T206]  copy_net_ns (net/core/net_namespace.c:579)
[    9.511010][  T206]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.511210][  T206]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.511345][  T206]  ksys_unshare (kernel/fork.c:3243)
[    9.511474][  T206]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.511605][  T206]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.511734][  T206]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.511865][  T206]  ? __ia32_sys_open (fs/open.c:1374)
[    9.512003][  T206]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.512132][  T206]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.512334][  T206]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.512463][  T206]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.512593][  T206]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.512721][  T206]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.512883][  T206] RIP: 0033:0x7fb35cb1cbcb
[    9.513019][  T206] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    9.513499][  T206] RSP: 002b:00007ffffae32318 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    9.513692][  T206] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fb35cb1cbcb
[    9.513885][  T206] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.514077][  T206] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[    9.514276][  T206] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffffae34540
[    9.514472][  T206] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffffae36865
| [    9.525020][  T206] ------------[ cut here ]------------
| [    9.525160][  T206] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/206
| [    9.525386][  T206] Modules linked in:
| [    9.525754][  T206] Tainted: [W]=WARN
[    9.525852][  T206] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.526014][  T206] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.526199][  T206] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.526657][  T206] RSP: 0018:ffa0000000967918 EFLAGS: 00010286
[    9.526817][  T206] RAX: 00000000ffffffa6 RBX: ff1100001014b540 RCX: 1ff400000012cee9
[    9.527007][  T206] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001014b5fc
[    9.527202][  T206] RBP: ff1100000f46c000 R08: 1fe22000020296c1 R09: ff1100000f6b5180
[    9.527398][  T206] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    9.527589][  T206] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f46c000
[    9.527784][  T206] FS:  00007fb35c85a840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[    9.528009][  T206] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.528174][  T206] CR2: 00007fb35ca5bc20 CR3: 0000000009c08004 CR4: 0000000000771ef0
[    9.528374][  T206] PKRU: 55555554
[    9.528470][  T206] Call Trace:
[    9.528567][  T206]  <TASK>
[    9.528634][  T206]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.528763][  T206]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.528892][  T206]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.528990][  T206]  register_netdevice (net/core/dev.c:11488)
[    9.529158][  T206]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.529327][  T206]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    9.529458][  T206]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[    9.529589][  T206]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[    9.529717][  T206]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[    9.529847][  T206]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[    9.529978][  T206]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[    9.530119][  T206]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[    9.530279][  T206]  ops_init (net/core/net_namespace.c:137)
[    9.530386][  T206]  setup_net (net/core/net_namespace.c:446)
[    9.530485][  T206]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.530612][  T206]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.530741][  T206]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.530873][  T206]  copy_net_ns (net/core/net_namespace.c:579)
[    9.531003][  T206]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.531134][  T206]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.531329][  T206]  ksys_unshare (kernel/fork.c:3243)
[    9.531458][  T206]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.531586][  T206]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.531714][  T206]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.531843][  T206]  ? __ia32_sys_open (fs/open.c:1374)
[    9.531974][  T206]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.532102][  T206]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.532271][  T206]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.532407][  T206]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.532536][  T206]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.532664][  T206]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.532822][  T206] RIP: 0033:0x7fb35cb1cbcb
[    9.532957][  T206] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    9.533443][  T206] RSP: 002b:00007ffffae32318 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    9.533637][  T206] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fb35cb1cbcb
[    9.533830][  T206] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.534023][  T206] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[    9.534225][  T206] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffffae34540
[    9.534423][  T206] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffffae36865
| [    9.538225][  T206] ------------[ cut here ]------------
| [    9.538381][  T206] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/206
| [    9.538633][  T206] Modules linked in:
| [    9.538999][  T206] Tainted: [W]=WARN
[    9.539098][  T206] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.539280][  T206] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.539453][  T206] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.539917][  T206] RSP: 0018:ffa00000009678f8 EFLAGS: 00010286
[    9.540082][  T206] RAX: 00000000ffffffa6 RBX: ff1100001014a580 RCX: 1ff400000012cee5
[    9.540282][  T206] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001014a63c
[    9.540481][  T206] RBP: ff11000002949000 R08: 1fe22000020294c9 R09: ff1100000f6b5180
[    9.540675][  T206] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    9.540870][  T206] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000002949000
[    9.541066][  T206] FS:  00007fb35c85a840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[    9.541327][  T206] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.541490][  T206] CR2: 00007fb35ca5bc20 CR3: 0000000009c08004 CR4: 0000000000771ef0
[    9.541689][  T206] PKRU: 55555554
[    9.541787][  T206] Call Trace:
[    9.541885][  T206]  <TASK>
[    9.541952][  T206]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.542082][  T206]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.542219][  T206]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.542325][  T206]  register_netdevice (net/core/dev.c:11488)
[    9.542457][  T206]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.542619][  T206]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    9.542751][  T206]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[    9.542881][  T206]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[    9.543012][  T206]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[    9.543149][  T206]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[    9.543279][  T206]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[    9.543416][  T206]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[    9.543547][  T206]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[    9.543679][  T206]  vti_init_net (net/ipv4/ip_vti.c:517)
[    9.543809][  T206]  ops_init (net/core/net_namespace.c:137)
[    9.543909][  T206]  setup_net (net/core/net_namespace.c:446)
[    9.544008][  T206]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.544139][  T206]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.544275][  T206]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.544413][  T206]  copy_net_ns (net/core/net_namespace.c:579)
[    9.544547][  T206]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.544680][  T206]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.544811][  T206]  ksys_unshare (kernel/fork.c:3243)
[    9.544942][  T206]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.545074][  T206]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.545224][  T206]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.545365][  T206]  ? __ia32_sys_open (fs/open.c:1374)
[    9.545503][  T206]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.545638][  T206]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.545775][  T206]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.545906][  T206]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.546039][  T206]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.546175][  T206]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.546341][  T206] RIP: 0033:0x7fb35cb1cbcb
[    9.546479][  T206] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    9.546940][  T206] RSP: 002b:00007ffffae32318 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    9.547136][  T206] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fb35cb1cbcb
[    9.547342][  T206] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.547536][  T206] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[    9.547755][  T206] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffffae34540
[    9.547950][  T206] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffffae36865
| [    9.552026][  T206] ------------[ cut here ]------------
| [    9.552190][  T206] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/206
| [    9.552415][  T206] Modules linked in:
| [    9.552781][  T206] Tainted: [W]=WARN
[    9.552880][  T206] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.553042][  T206] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.553216][  T206] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.553685][  T206] RSP: 0018:ffa0000000967a78 EFLAGS: 00010286
[    9.553856][  T206] RAX: 00000000ffffffa6 RBX: ff1100000d266900 RCX: 1ff400000012cf15
[    9.554057][  T206] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d2669bc
[    9.554264][  T206] RBP: ff110000087f1000 R08: 1fe2200001a4cd39 R09: ff1100000f6b5180
[    9.554467][  T206] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    9.554661][  T206] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000087f1000
[    9.554856][  T206] FS:  00007fb35c85a840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[    9.555084][  T206] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.555256][  T206] CR2: 00007fb35ca5bc20 CR3: 0000000009c08004 CR4: 0000000000771ef0
[    9.555456][  T206] PKRU: 55555554
[    9.555555][  T206] Call Trace:
[    9.555657][  T206]  <TASK>
[    9.555725][  T206]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.555861][  T206]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.555999][  T206]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.556102][  T206]  register_netdevice (net/core/dev.c:11488)
[    9.556243][  T206]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.556427][  T206]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.556560][  T206]  register_netdev (net/core/dev.c:11552)
[    9.556691][  T206]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[    9.556825][  T206]  ops_init (net/core/net_namespace.c:137)
[    9.556928][  T206]  setup_net (net/core/net_namespace.c:446)
[    9.557027][  T206]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.557167][  T206]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.557307][  T206]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.557445][  T206]  copy_net_ns (net/core/net_namespace.c:579)
[    9.557580][  T206]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.557718][  T206]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.557852][  T206]  ksys_unshare (kernel/fork.c:3243)
[    9.557982][  T206]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.558112][  T206]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.558249][  T206]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.558385][  T206]  ? __ia32_sys_open (fs/open.c:1374)
[    9.558518][  T206]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.558648][  T206]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.558781][  T206]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.558912][  T206]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.559044][  T206]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.559183][  T206]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.559350][  T206] RIP: 0033:0x7fb35cb1cbcb
[    9.559485][  T206] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    9.559951][  T206] RSP: 002b:00007ffffae32318 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    9.560152][  T206] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fb35cb1cbcb
[    9.560354][  T206] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.560548][  T206] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[    9.560744][  T206] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffffae34540
[    9.560942][  T206] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffffae36865
| [    9.565008][  T206] ------------[ cut here ]------------
| [    9.565173][  T206] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/206
| [    9.565399][  T206] Modules linked in:
| [    9.565757][  T206] Tainted: [W]=WARN
[    9.565855][  T206] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.566015][  T206] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.566187][  T206] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.566682][  T206] RSP: 0018:ffa0000000967a68 EFLAGS: 00010286
[    9.566846][  T206] RAX: 00000000ffffffa6 RBX: ff1100001014c740 RCX: 1ff400000012cf13
[    9.567036][  T206] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001014c7fc
[    9.567232][  T206] RBP: ff1100000e479000 R08: 1fe2200002029901 R09: ff1100000f6b5180
[    9.567461][  T206] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    9.567658][  T206] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e479000
[    9.567850][  T206] FS:  00007fb35c85a840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[    9.568074][  T206] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.568241][  T206] CR2: 00007fb35ca5bc20 CR3: 0000000009c08004 CR4: 0000000000771ef0
[    9.568447][  T206] PKRU: 55555554
[    9.568542][  T206] Call Trace:
[    9.568638][  T206]  <TASK>
[    9.568705][  T206]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.568833][  T206]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.568961][  T206]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.569059][  T206]  register_netdevice (net/core/dev.c:11488)
[    9.569199][  T206]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.569369][  T206]  register_netdev (net/core/dev.c:11552)
[    9.569498][  T206]  sit_init_net (net/ipv6/sit.c:1860)
[    9.569627][  T206]  ops_init (net/core/net_namespace.c:137)
[    9.569725][  T206]  setup_net (net/core/net_namespace.c:446)
[    9.569822][  T206]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.569949][  T206]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.570078][  T206]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.570245][  T206]  copy_net_ns (net/core/net_namespace.c:579)
[    9.570401][  T206]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.570532][  T206]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.570661][  T206]  ksys_unshare (kernel/fork.c:3243)
[    9.570790][  T206]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.570919][  T206]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.571066][  T206]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.571206][  T206]  ? __ia32_sys_open (fs/open.c:1374)
[    9.571340][  T206]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.571467][  T206]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.571594][  T206]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.571722][  T206]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.571859][  T206]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.572000][  T206]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.572204][  T206] RIP: 0033:0x7fb35cb1cbcb
[    9.572348][  T206] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    9.572828][  T206] RSP: 002b:00007ffffae32318 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    9.573020][  T206] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fb35cb1cbcb
[    9.573217][  T206] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.573411][  T206] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[    9.573603][  T206] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffffae34540
[    9.573803][  T206] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffffae36865
| [    9.579321][  T206] ------------[ cut here ]------------
| [    9.579469][  T206] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/206
| [    9.579729][  T206] Modules linked in:
| [    9.580129][  T206] Tainted: [W]=WARN
[    9.580239][  T206] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.580407][  T206] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.580577][  T206] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.581055][  T206] RSP: 0018:ffa0000000967a78 EFLAGS: 00010286
[    9.581222][  T206] RAX: 00000000ffffffa6 RBX: ff1100000d2b3000 RCX: 1ff400000012cf15
[    9.581419][  T206] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d2b30bc
[    9.581611][  T206] RBP: ff1100000f224000 R08: 1fe2200001a56619 R09: ff1100000f6b5180
[    9.581801][  T206] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    9.581994][  T206] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f224000
[    9.582190][  T206] FS:  00007fb35c85a840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[    9.582419][  T206] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.582581][  T206] CR2: 00007fb35ca5bc20 CR3: 0000000009c08004 CR4: 0000000000771ef0
[    9.582774][  T206] PKRU: 55555554
[    9.582872][  T206] Call Trace:
[    9.582967][  T206]  <TASK>
[    9.583034][  T206]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.583167][  T206]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.583303][  T206]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.583402][  T206]  register_netdevice (net/core/dev.c:11488)
[    9.583534][  T206]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.583694][  T206]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.583824][  T206]  register_netdev (net/core/dev.c:11552)
[    9.583952][  T206]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[    9.584081][  T206]  ops_init (net/core/net_namespace.c:137)
[    9.584185][  T206]  setup_net (net/core/net_namespace.c:446)
[    9.584315][  T206]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.584452][  T206]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.584586][  T206]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.584716][  T206]  copy_net_ns (net/core/net_namespace.c:579)
[    9.584845][  T206]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.584978][  T206]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.585108][  T206]  ksys_unshare (kernel/fork.c:3243)
[    9.585303][  T206]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.585432][  T206]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.585562][  T206]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.585691][  T206]  ? __ia32_sys_open (fs/open.c:1374)
[    9.585823][  T206]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.585950][  T206]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.586078][  T206]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.586262][  T206]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.586394][  T206]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.586540][  T206]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.586707][  T206] RIP: 0033:0x7fb35cb1cbcb
[    9.586841][  T206] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    9.587368][  T206] RSP: 002b:00007ffffae32318 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    9.587584][  T206] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fb35cb1cbcb
[    9.587777][  T206] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.587967][  T206] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[    9.588214][  T206] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffffae34540
[    9.588418][  T206] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffffae36865
| [    9.617013][  T207] ------------[ cut here ]------------
| [    9.617664][  T207] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/207
| [    9.617945][  T207] Modules linked in:
| [    9.618463][  T207] Tainted: [W]=WARN
[    9.618608][  T207] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.618816][  T207] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.619037][  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
[    9.619561][  T207] RSP: 0018:ffa00000008d7020 EFLAGS: 00010286
[    9.619776][  T207] RAX: 00000000ffffffa6 RBX: ff11000004eb3380 RCX: 1ff400000011adca
[    9.620021][  T207] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000004eb343c
[    9.620279][  T207] RBP: ff1100000f4c9000 R08: 1fe22000009d6689 R09: ff110000102aae58
[    9.620531][  T207] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[    9.620778][  T207] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[    9.621025][  T207] FS:  00007f18ede33840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[    9.621318][  T207] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.621535][  T207] CR2: 0000000021846988 CR3: 000000000be00005 CR4: 0000000000771ef0
[    9.621777][  T207] PKRU: 55555554
[    9.621922][  T207] Call Trace:
[    9.622066][  T207]  <TASK>
[    9.622195][  T207]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.622388][  T207]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.622534][  T207]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.622712][  T207]  __dev_notify_flags (net/core/dev.c:9787)
[    9.622892][  T207]  ? netif_change_name (net/core/dev.c:1495)
[    9.623068][  T207]  ? __dev_change_flags (net/core/dev.c:9752)
[    9.623256][  T207]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[    9.623440][  T207]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.623644][  T207]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[    9.623827][  T207]  netif_change_flags (net/core/dev.c:9820)
[    9.624007][  T207]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[    9.624193][  T207]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    9.624399][  T207]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    9.624597][  T207]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.624807][  T207]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    9.624984][  T207]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.625194][  T207]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    9.625394][  T207]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.625578][  T207]  ? __kernel_text_address (kernel/extable.c:79)
[    9.625756][  T207]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.625950][  T207]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.626128][  T207]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.626327][  T207]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.626531][  T207]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.626707][  T207]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.626882][  T207]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.627059][  T207]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.627263][  T207]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[    9.627449][  T207]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.627629][  T207]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.627831][  T207]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.628014][  T207]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    9.628208][  T207]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.628395][  T207]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.628593][  T207]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.628770][  T207]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.628947][  T207]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.629124][  T207]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.629323][  T207]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.629501][  T207]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.629678][  T207]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.629858][  T207]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.630035][  T207]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.630224][  T207]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.630408][  T207]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.630584][  T207]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.630761][  T207]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.630942][  T207]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.631117][  T207]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.631313][  T207]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.631492][  T207]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.631670][  T207]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.631853][  T207]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    9.632029][  T207]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    9.632223][  T207]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.632410][  T207]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.632588][  T207]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.632768][  T207]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.632953][  T207]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.633135][  T207]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.633334][  T207]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.633511][  T207]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.633690][  T207]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.633903][  T207]  ? move_addr_to_kernel (net/socket.c:258)
[    9.634083][  T207]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.634272][  T207]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.634460][  T207]  ___sys_sendmsg (net/socket.c:2752)
[    9.634637][  T207]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    9.634848][  T207]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.635062][  T207]  __sys_sendmsg (net/socket.c:2784)
[    9.635257][  T207]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.635479][  T207]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    9.635689][  T207]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[    9.635864][  T207]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.636041][  T207]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.636225][  T207]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.636434][  T207]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.636611][  T207]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.636816][  T207] RIP: 0033:0x7f18ee06d08e
[    9.636998][  T207] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    9.637529][  T207] RSP: 002b:00007ffe13c0f250 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.637800][  T207] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f18ee06d08e
[    9.638040][  T207] RDX: 0000000000000000 RSI: 00007ffe13c0f300 RDI: 0000000000000005
[    9.638306][  T207] RBP: 00007ffe13c0f260 R08: 0000000000000000 R09: 0000000000000000
[    9.638559][  T207] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ea13
[    9.638808][  T207] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe13c0f9d0
| [    9.745029][  T210] ------------[ cut here ]------------
| [    9.745230][  T210] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/210
| [    9.745478][  T210] Modules linked in:
| [    9.745887][  T210] Tainted: [W]=WARN
[    9.745991][  T210] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.746202][  T210] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.746387][  T210] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.746869][  T210] RSP: 0018:ffa00000009b6e30 EFLAGS: 00010286
[    9.747046][  T210] RAX: 00000000ffffffa6 RBX: ff1100001014d1c0 RCX: 1ff4000000136d8c
[    9.747256][  T210] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001014d27c
[    9.747464][  T210] RBP: ff11000008821000 R08: 1fe2200002029a51 R09: ff1100000e748b80
[    9.747667][  T210] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    9.747870][  T210] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000c51f504
[    9.748075][  T210] FS:  00007fcc8ebe2840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[    9.748360][  T210] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.748530][  T210] CR2: 00000000004eb188 CR3: 0000000010114006 CR4: 0000000000771ef0
[    9.748736][  T210] PKRU: 55555554
[    9.748837][  T210] Call Trace:
[    9.748938][  T210]  <TASK>
[    9.749008][  T210]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[    9.749186][  T210]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.749329][  T210]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.749432][  T210]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.749568][  T210]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.749703][  T210]  __dev_notify_flags (net/core/dev.c:9787)
[    9.749840][  T210]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.749977][  T210]  ? netif_change_name (net/core/dev.c:1495)
[    9.750116][  T210]  ? __queue_work (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/workqueue.c:2402 (discriminator 2))
[    9.750328][  T210]  ? preempt_schedule_notrace_thunk (arch/x86/entry/thunk.S:13)
[    9.750500][  T210]  ? trace_irq_enable.constprop.0 (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/cpumask.h:649 ./include/linux/cpumask.h:1231 ./include/trace/events/preemptirq.h:40)
[    9.750671][  T210]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[    9.750806][  T210]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.750941][  T210]  ? queue_delayed_work_on (kernel/workqueue.c:2616 (discriminator 6))
[    9.751081][  T210]  veth_newlink (drivers/net/veth.c:1871)
[    9.751281][  T210]  ? veth_poll_controller (drivers/net/veth.c:1470)
[    9.751495][  T210]  ? kasan_save_stack (mm/kasan/common.c:57)
[    9.751630][  T210]  ? kasan_save_track (mm/kasan/common.c:78)
[    9.751764][  T210]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[    9.751915][  T210]  ? __kvmalloc_node_noprof (mm/slub.c:5296 mm/slub.c:6832)
[    9.752049][  T210]  ? alloc_netdev_mqs (net/core/dev.c:12129 (discriminator 7))
[    9.752338][  T210]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[    9.752476][  T210]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    9.752613][  T210]  ? rtnl_create_link (net/core/rtnetlink.c:3720)
[    9.752750][  T210]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[    9.752888][  T210]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[    9.753024][  T210]  ? __dev_get_by_name (net/core/dev.c:883)
[    9.753227][  T210]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[    9.753377][  T210]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[    9.753519][  T210]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.753656][  T210]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.753791][  T210]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.753928][  T210]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.754063][  T210]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.754255][  T210]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.754401][  T210]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.754537][  T210]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.754676][  T210]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.754812][  T210]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.754948][  T210]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.755086][  T210]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.755228][  T210]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.755366][  T210]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.755503][  T210]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.755640][  T210]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.755778][  T210]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.755918][  T210]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    9.756055][  T210]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    9.756197][  T210]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.756341][  T210]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.756478][  T210]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.756615][  T210]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.756754][  T210]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.756894][  T210]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.757032][  T210]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.757175][  T210]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.757316][  T210]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.757485][  T210]  ? move_addr_to_kernel (net/socket.c:258)
[    9.757623][  T210]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.757761][  T210]  ? rcu_read_unlock (./include/linux/rcupdate.h:867 (discriminator 5))
[    9.757900][  T210]  ___sys_sendmsg (net/socket.c:2752)
[    9.758035][  T210]  ? wp_page_copy (./include/linux/pgtable.h:117 mm/memory.c:3976)
[    9.758179][  T210]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.758324][  T210]  ? do_wp_page (./include/linux/pgtable.h:117 mm/memory.c:4331)
[    9.758464][  T210]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[    9.758603][  T210]  __sys_sendmsg (net/socket.c:2784)
[    9.758740][  T210]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.758883][  T210]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.759020][  T210]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.759161][  T210]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.759300][  T210]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.759435][  T210]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.759571][  T210]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.759775][  T210] RIP: 0033:0x7fcc8ee1c08e
[    9.759919][  T210] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    9.760412][  T210] RSP: 002b:00007fff2de51850 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.760619][  T210] RAX: ffffffffffffffda RBX: 00007fff2de52000 RCX: 00007fcc8ee1c08e
[    9.760824][  T210] RDX: 0000000000000000 RSI: 00007fff2de51900 RDI: 0000000000000005
[    9.761028][  T210] RBP: 00007fff2de51860 R08: 0000000000000000 R09: 0000000000000000
[    9.761235][  T210] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ea14
[    9.761444][  T210] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff2de51fd8
| [    9.770557][  T210] ------------[ cut here ]------------
| [    9.770707][  T210] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/210
| [    9.770943][  T210] Modules linked in:
| [    9.771329][  T210] Tainted: [W]=WARN
[    9.771431][  T210] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.771601][  T210] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.771779][  T210] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.772273][  T210] RSP: 0018:ffa00000009b71b0 EFLAGS: 00010286
[    9.772452][  T210] RAX: 00000000ffffffa6 RBX: ff11000009752900 RCX: 1ff4000000136dfc
[    9.772654][  T210] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000097529bc
[    9.772858][  T210] RBP: ff11000008499000 R08: 1fe22000012ea539 R09: ff1100000e748b80
[    9.773059][  T210] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    9.773265][  T210] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffb6403b20
[    9.773472][  T210] FS:  00007fcc8ebe2840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[    9.773711][  T210] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.773883][  T210] CR2: 00000000004eb188 CR3: 0000000010114006 CR4: 0000000000771ef0
[    9.774087][  T210] PKRU: 55555554
[    9.774194][  T210] Call Trace:
[    9.774299][  T210]  <TASK>
[    9.774368][  T210]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.774504][  T210]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.774610][  T210]  __dev_notify_flags (net/core/dev.c:9787)
[    9.774748][  T210]  ? netif_change_name (net/core/dev.c:1495)
[    9.774884][  T210]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[    9.775019][  T210]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    9.775159][  T210]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[    9.775301][  T210]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[    9.775438][  T210]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[    9.775590][  T210]  ? __dev_get_by_name (net/core/dev.c:883)
[    9.775725][  T210]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[    9.775866][  T210]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[    9.776006][  T210]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.776148][  T210]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.776283][  T210]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.776424][  T210]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.776566][  T210]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.776702][  T210]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.776841][  T210]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.776978][  T210]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.777113][  T210]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.777315][  T210]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.777457][  T210]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.777593][  T210]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.777730][  T210]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.777867][  T210]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.778003][  T210]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.778137][  T210]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.778337][  T210]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.778484][  T210]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    9.778619][  T210]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    9.778756][  T210]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.778894][  T210]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.779030][  T210]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.779224][  T210]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.779426][  T210]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.779563][  T210]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.779701][  T210]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.779836][  T210]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.779971][  T210]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.780139][  T210]  ? move_addr_to_kernel (net/socket.c:258)
[    9.780364][  T210]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.780500][  T210]  ? rcu_read_unlock (./include/linux/rcupdate.h:867 (discriminator 5))
[    9.780636][  T210]  ___sys_sendmsg (net/socket.c:2752)
[    9.780771][  T210]  ? wp_page_copy (./include/linux/pgtable.h:117 mm/memory.c:3976)
[    9.780907][  T210]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.781046][  T210]  ? do_wp_page (./include/linux/pgtable.h:117 mm/memory.c:4331)
[    9.781280][  T210]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[    9.781431][  T210]  __sys_sendmsg (net/socket.c:2784)
[    9.781566][  T210]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.781707][  T210]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.781843][  T210]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.781980][  T210]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.782115][  T210]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.782358][  T210]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.782497][  T210]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.782664][  T210] RIP: 0033:0x7fcc8ee1c08e
[    9.782806][  T210] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    9.783398][  T210] RSP: 002b:00007fff2de51850 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.783602][  T210] RAX: ffffffffffffffda RBX: 00007fff2de52000 RCX: 00007fcc8ee1c08e
[    9.783804][  T210] RDX: 0000000000000000 RSI: 00007fff2de51900 RDI: 0000000000000005
[    9.784007][  T210] RBP: 00007fff2de51860 R08: 0000000000000000 R09: 0000000000000000
[    9.784305][  T210] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ea14
[    9.784514][  T210] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff2de51fd8
| [   10.070999][  T219] ------------[ cut here ]------------
| [   10.071431][  T219] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/219
| [   10.071723][  T219] Modules linked in:
| [   10.072209][  T219] Tainted: [W]=WARN
[   10.072365][  T219] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.072579][  T219] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.072804][  T219] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   10.073348][  T219] RSP: 0018:ffa0000000a17020 EFLAGS: 00010286
[   10.073564][  T219] RAX: 00000000ffffffa6 RBX: ff1100000d2b3380 RCX: 1ff4000000142dca
[   10.073812][  T219] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d2b343c
[   10.074059][  T219] RBP: ff11000008499000 R08: 1fe2200001a56689 R09: ff110000102a8b58
[   10.074326][  T219] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[   10.074572][  T219] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   10.074821][  T219] FS:  00007f9200d7c840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   10.075105][  T219] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.075337][  T219] CR2: 000000003355f988 CR3: 000000000e9d4006 CR4: 0000000000771ef0
[   10.075586][  T219] PKRU: 55555554
[   10.075733][  T219] Call Trace:
[   10.075879][  T219]  <TASK>
[   10.075997][  T219]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   10.076196][  T219]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   10.076354][  T219]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   10.076537][  T219]  __dev_notify_flags (net/core/dev.c:9787)
[   10.076723][  T219]  ? netif_change_name (net/core/dev.c:1495)
[   10.076904][  T219]  ? __dev_change_flags (net/core/dev.c:9752)
[   10.077087][  T219]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   10.077281][  T219]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.077505][  T219]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   10.077689][  T219]  netif_change_flags (net/core/dev.c:9820)
[   10.077872][  T219]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   10.078054][  T219]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   10.078252][  T219]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   10.078440][  T219]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   10.078657][  T219]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   10.078843][  T219]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   10.079028][  T219]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   10.079221][  T219]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   10.079413][  T219]  ? __kernel_text_address (kernel/extable.c:79)
[   10.079599][  T219]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.079782][  T219]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.079968][  T219]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   10.080163][  T219]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.080351][  T219]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   10.080531][  T219]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.080712][  T219]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.080895][  T219]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   10.081078][  T219]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   10.081274][  T219]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   10.081468][  T219]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   10.081651][  T219]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   10.081838][  T219]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   10.082025][  T219]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   10.082223][  T219]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.082414][  T219]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   10.082599][  T219]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   10.082780][  T219]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   10.082965][  T219]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.083167][  T219]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.083357][  T219]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   10.083547][  T219]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   10.083730][  T219]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.083915][  T219]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   10.084099][  T219]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   10.084301][  T219]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   10.084486][  T219]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.084669][  T219]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.084853][  T219]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.085036][  T219]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   10.085230][  T219]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   10.085422][  T219]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.085604][  T219]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   10.085792][  T219]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   10.085977][  T219]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   10.086176][  T219]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   10.086368][  T219]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   10.086551][  T219]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.086737][  T219]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   10.086922][  T219]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   10.087106][  T219]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   10.087315][  T219]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   10.087502][  T219]  ? copy_msghdr_from_user (net/socket.c:2635)
[   10.087684][  T219]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   10.087896][  T219]  ? move_addr_to_kernel (net/socket.c:258)
[   10.088080][  T219]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   10.088276][  T219]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   10.088469][  T219]  ___sys_sendmsg (net/socket.c:2752)
[   10.088654][  T219]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   10.088868][  T219]  ? copy_msghdr_from_user (net/socket.c:2603)
[   10.089063][  T219]  __sys_sendmsg (net/socket.c:2784)
[   10.089259][  T219]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   10.089450][  T219]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   10.089668][  T219]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   10.089851][  T219]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.090039][  T219]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   10.090232][  T219]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   10.090423][  T219]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   10.090607][  T219]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.090822][  T219] RIP: 0033:0x7f9200fb608e
[   10.091013][  T219] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   10.091561][  T219] RSP: 002b:00007ffcb268ec90 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   10.091810][  T219] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f9200fb608e
[   10.092057][  T219] RDX: 0000000000000000 RSI: 00007ffcb268ed40 RDI: 0000000000000005
[   10.092325][  T219] RBP: 00007ffcb268eca0 R08: 0000000000000000 R09: 0000000000000000
[   10.092576][  T219] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ea14
[   10.092823][  T219] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffcb268f418
| [   10.125696][  T220] ------------[ cut here ]------------
| [   10.125862][  T220] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/220
| [   10.126106][  T220] Modules linked in:
| [   10.126540][  T220] Tainted: [W]=WARN
[   10.126643][  T220] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.126811][  T220] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.126987][  T220] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   10.127477][  T220] RSP: 0018:ffa0000000a27020 EFLAGS: 00010286
[   10.127646][  T220] RAX: 00000000ffffffa6 RBX: ff1100000d1a2040 RCX: 1ff4000000144dca
[   10.127846][  T220] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d1a20fc
[   10.128047][  T220] RBP: ff11000008821000 R08: 1fe2200001a34421 R09: ff1100000f5bd158
[   10.128252][  T220] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[   10.128458][  T220] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   10.128660][  T220] FS:  00007f5719f34840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   10.128894][  T220] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.129063][  T220] CR2: 00000000294af988 CR3: 000000000f3bf005 CR4: 0000000000771ef0
[   10.129273][  T220] PKRU: 55555554
[   10.129379][  T220] Call Trace:
[   10.129480][  T220]  <TASK>
[   10.129551][  T220]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   10.129688][  T220]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   10.129792][  T220]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   10.129928][  T220]  __dev_notify_flags (net/core/dev.c:9787)
[   10.130066][  T220]  ? netif_change_name (net/core/dev.c:1495)
[   10.130309][  T220]  ? __dev_change_flags (net/core/dev.c:9752)
[   10.130448][  T220]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   10.130584][  T220]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.130720][  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))
[   10.130857][  T220]  netif_change_flags (net/core/dev.c:9820)
[   10.130993][  T220]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   10.131129][  T220]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   10.131347][  T220]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   10.131485][  T220]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   10.131654][  T220]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   10.131789][  T220]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   10.131927][  T220]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   10.132060][  T220]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   10.132260][  T220]  ? __kernel_text_address (kernel/extable.c:79)
[   10.132484][  T220]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.132620][  T220]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.132755][  T220]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   10.132891][  T220]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.133026][  T220]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   10.133245][  T220]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.133382][  T220]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.133516][  T220]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   10.133653][  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)
[   10.133790][  T220]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   10.133926][  T220]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   10.134062][  T220]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   10.134265][  T220]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   10.134406][  T220]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   10.134541][  T220]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.134676][  T220]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   10.134809][  T220]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   10.134945][  T220]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   10.135080][  T220]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.135273][  T220]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.135411][  T220]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   10.135544][  T220]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   10.135678][  T220]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.135812][  T220]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   10.135947][  T220]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   10.136084][  T220]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   10.136272][  T220]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.136411][  T220]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.136548][  T220]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.136682][  T220]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   10.136817][  T220]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   10.136953][  T220]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.137087][  T220]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   10.137280][  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))
[   10.137419][  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))
[   10.137556][  T220]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   10.137693][  T220]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   10.137830][  T220]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.137969][  T220]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   10.138106][  T220]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   10.138305][  T220]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   10.138442][  T220]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   10.138576][  T220]  ? copy_msghdr_from_user (net/socket.c:2635)
[   10.138711][  T220]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   10.138879][  T220]  ? move_addr_to_kernel (net/socket.c:258)
[   10.139015][  T220]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   10.139205][  T220]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   10.139346][  T220]  ___sys_sendmsg (net/socket.c:2752)
[   10.139481][  T220]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   10.139648][  T220]  ? copy_msghdr_from_user (net/socket.c:2603)
[   10.139794][  T220]  __sys_sendmsg (net/socket.c:2784)
[   10.139930][  T220]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   10.140065][  T220]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   10.140301][  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)
[   10.140439][  T220]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.140574][  T220]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   10.140708][  T220]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   10.140842][  T220]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   10.140976][  T220]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.141209][  T220] RIP: 0033:0x7f571a16e08e
[   10.141357][  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
[   10.141837][  T220] RSP: 002b:00007fff782ad180 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   10.142042][  T220] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f571a16e08e
[   10.142269][  T220] RDX: 0000000000000000 RSI: 00007fff782ad230 RDI: 0000000000000005
[   10.142477][  T220] RBP: 00007fff782ad190 R08: 0000000000000000 R09: 0000000000000000
[   10.142678][  T220] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ea14
[   10.142878][  T220] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff782ad908
| [   10.145333][   T36] ------------[ cut here ]------------
| [   10.145509][   T36] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/36
| [   10.145755][   T36] Modules linked in:
| [   10.146193][   T36] Tainted: [W]=WARN
[   10.146290][   T36] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.146446][   T36] Workqueue: events_unbound linkwatch_event
[   10.146611][   T36] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.146814][   T36] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   10.147472][   T36] RSP: 0018:ffa000000028f9e0 EFLAGS: 00010286
[   10.147632][   T36] RAX: 00000000ffffffa6 RBX: ff1100000d1a2200 RCX: 1ff4000000051f02
[   10.147818][   T36] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d1a22bc
[   10.148010][   T36] RBP: ff11000008499000 R08: 1fe2200001a34459 R09: ff11000001d751a8
[   10.148202][   T36] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000
[   10.148390][   T36] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   10.148577][   T36] FS:  0000000000000000(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   10.148798][   T36] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.148960][   T36] CR2: 000055cac4457d5c CR3: 000000003c54d004 CR4: 0000000000771ef0
[   10.149194][   T36] PKRU: 55555554
[   10.149292][   T36] Call Trace:
[   10.149384][   T36]  <TASK>
[   10.149449][   T36]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   10.149576][   T36]  ? notifier_call_chain (kernel/notifier.c:85)
[   10.149704][   T36]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   10.149799][   T36]  netif_state_change (net/core/dev.c:1605)
[   10.149924][   T36]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[   10.150079][   T36]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[   10.150212][   T36]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   10.150340][   T36]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   10.150466][   T36]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   10.150589][   T36]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   10.150717][   T36]  process_one_work (kernel/workqueue.c:3314)
[   10.150845][   T36]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   10.150968][   T36]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.151097][   T36]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   10.151231][   T36]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   10.151360][   T36]  kthread (kernel/kthread.c:436)
[   10.151453][   T36]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.151616][   T36]  ? kthread_affine_node (kernel/kthread.c:378)
[   10.151742][   T36]  ret_from_fork (arch/x86/kernel/process.c:158)
[   10.151867][   T36]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   10.152025][   T36]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   10.152155][   T36]  ? kthread_affine_node (kernel/kthread.c:378)
[   10.152279][   T36]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   10.827801][   T37] ------------[ cut here ]------------
| [   10.827979][   T37] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/37
| [   10.828247][   T37] Modules linked in:
| [   10.828639][   T37] Tainted: [W]=WARN
[   10.828737][   T37] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.828893][   T37] Workqueue: events_unbound linkwatch_event
[   10.829052][   T37] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.829217][   T37] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   10.829664][   T37] RSP: 0018:ffa000000029f9e0 EFLAGS: 00010286
[   10.829822][   T37] RAX: 00000000ffffffa6 RBX: ff11000008d2a580 RCX: 1ff4000000053f02
[   10.830006][   T37] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000008d2a63c
[   10.830209][   T37] RBP: ff11000008821000 R08: 1fe22000011a54c9 R09: ff11000001da0ba8
[   10.830397][   T37] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000
[   10.830581][   T37] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   10.830770][   T37] FS:  0000000000000000(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   10.830986][   T37] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.831149][   T37] CR2: 000055ca1d3ec028 CR3: 000000003c54d001 CR4: 0000000000771ef0
[   10.831339][   T37] PKRU: 55555554
[   10.831432][   T37] Call Trace:
[   10.831524][   T37]  <TASK>
[   10.831589][   T37]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   10.831713][   T37]  ? notifier_call_chain (kernel/notifier.c:85)
[   10.831838][   T37]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   10.831932][   T37]  netif_state_change (net/core/dev.c:1605)
[   10.832056][   T37]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[   10.832216][   T37]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[   10.832347][   T37]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   10.832471][   T37]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   10.832599][   T37]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   10.832721][   T37]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   10.832846][   T37]  process_one_work (kernel/workqueue.c:3314)
[   10.832973][   T37]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   10.833098][   T37]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.833231][   T37]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   10.833362][   T37]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   10.833484][   T37]  kthread (kernel/kthread.c:436)
[   10.833582][   T37]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.833739][   T37]  ? kthread_affine_node (kernel/kthread.c:378)
[   10.833861][   T37]  ret_from_fork (arch/x86/kernel/process.c:158)
[   10.833985][   T37]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   10.834137][   T37]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   10.834268][   T37]  ? kthread_affine_node (kernel/kthread.c:378)
[   10.834393][   T37]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   12.087748][   T12] ------------[ cut here ]------------
| [   12.087948][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   12.088516][   T12] Modules linked in:
| [   12.088928][   T12] Tainted: [W]=WARN
[   12.089021][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.089233][   T12] Workqueue: netns cleanup_net
[   12.089368][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.089526][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.089961][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   12.090120][   T12] RAX: 00000000ffffffa6 RBX: ff1100000bc27700 RCX: 1ff4000000018eed
[   12.090312][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bc277bc
[   12.090490][   T12] RBP: ff1100000e83c000 R08: 1fe2200001784ef9 R09: ff11000001aed1d0
[   12.090669][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   12.090859][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   12.091039][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   12.091258][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.091414][   T12] CR2: 00007f292a7f1000 CR3: 000000003c54d005 CR4: 0000000000771ef0
[   12.091595][   T12] PKRU: 55555554
[   12.091686][   T12] Call Trace:
[   12.091776][   T12]  <TASK>
[   12.091840][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   12.091997][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   12.092154][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   12.092277][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   12.092447][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   12.092568][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   12.092692][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   12.092815][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   12.092938][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   12.093056][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.093186][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   12.093311][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   12.093433][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   12.093556][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.093677][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.093800][   T12]  process_one_work (kernel/workqueue.c:3314)
[   12.093923][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   12.094044][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.094175][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   12.094303][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   12.094423][   T12]  kthread (kernel/kthread.c:436)
[   12.094515][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.094664][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.094783][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   12.094904][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   12.095053][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   12.095180][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.095306][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   12.097698][   T12] ------------[ cut here ]------------
| [   12.097824][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   12.098062][   T12] Modules linked in:
| [   12.098504][   T12] Tainted: [W]=WARN
[   12.098594][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.098744][   T12] Workqueue: netns cleanup_net
[   12.098870][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.099029][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.099475][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   12.099628][   T12] RAX: 00000000ffffffa6 RBX: ff1100000bc27e00 RCX: 1ff4000000018eed
[   12.099812][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bc27ebc
[   12.099995][   T12] RBP: ff1100000a529000 R08: 1fe2200001784fd9 R09: ff11000001aed1d0
[   12.100181][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   12.100372][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   12.100555][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   12.100770][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.100921][   T12] CR2: 00007f292a7f1000 CR3: 000000003c54d005 CR4: 0000000000771ef0
[   12.101104][   T12] PKRU: 55555554
[   12.101201][   T12] Call Trace:
[   12.101297][   T12]  <TASK>
[   12.101361][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   12.101517][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   12.101669][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   12.101793][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   12.101916][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   12.102036][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   12.102163][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   12.102289][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   12.102417][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   12.102536][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.102661][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   12.102784][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   12.102907][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   12.103027][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.103153][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.103278][   T12]  process_one_work (kernel/workqueue.c:3314)
[   12.103409][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   12.103529][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.103654][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   12.103779][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   12.103897][   T12]  kthread (kernel/kthread.c:436)
[   12.103989][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.104140][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.104313][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   12.104436][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   12.104588][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   12.104711][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.104833][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   12.109577][   T12] ------------[ cut here ]------------
| [   12.109708][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   12.109946][   T12] Modules linked in:
| [   12.110324][   T12] Tainted: [W]=WARN
[   12.110415][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.110564][   T12] Workqueue: netns cleanup_net
[   12.110695][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.110854][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.111297][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   12.111449][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c1f4580 RCX: 1ff4000000018eed
[   12.111633][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c1f463c
[   12.111812][   T12] RBP: ff110000102c1000 R08: 1fe220000183e8c9 R09: ff11000001aed1d0
[   12.111997][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   12.112183][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   12.112371][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   12.112581][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.112734][   T12] CR2: 00007f292a7f1000 CR3: 000000000ebfb006 CR4: 0000000000771ef0
[   12.112920][   T12] PKRU: 55555554
[   12.113011][   T12] Call Trace:
[   12.113101][   T12]  <TASK>
[   12.113171][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   12.113331][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   12.113476][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   12.113596][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   12.113718][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   12.113837][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   12.113960][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   12.114083][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   12.114214][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   12.114341][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.114462][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   12.114583][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   12.114703][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   12.114826][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.114946][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.115070][   T12]  process_one_work (kernel/workqueue.c:3314)
[   12.115313][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   12.115447][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.115582][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   12.115716][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   12.115843][   T12]  kthread (kernel/kthread.c:436)
[   12.115941][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.116100][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.116366][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   12.116495][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   12.116654][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   12.116782][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.116911][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   12.120710][   T12] ------------[ cut here ]------------
| [   12.120855][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   12.121095][   T12] Modules linked in:
| [   12.121525][   T12] Tainted: [W]=WARN
[   12.121616][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.121766][   T12] Workqueue: netns cleanup_net
[   12.121890][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.122047][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.122495][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   12.122647][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c1f4900 RCX: 1ff4000000018eed
[   12.122875][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c1f49bc
[   12.123075][   T12] RBP: ff110000052c1000 R08: 1fe220000183e939 R09: ff11000001aed1d0
[   12.123274][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   12.123458][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   12.123639][   T12] FS:  0000000000000000(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   12.123852][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.124004][   T12] CR2: 000055caeb758028 CR3: 000000003c54d001 CR4: 0000000000771ef0
[   12.124188][   T12] PKRU: 55555554
[   12.124278][   T12] Call Trace:
[   12.124372][   T12]  <TASK>
[   12.124436][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   12.124642][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   12.124795][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   12.124917][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   12.125039][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   12.125174][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   12.125301][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   12.125423][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   12.125546][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   12.125667][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.125792][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   12.125914][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   12.126034][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   12.126161][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.126282][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.126410][   T12]  process_one_work (kernel/workqueue.c:3314)
[   12.126535][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   12.126655][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.126783][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   12.126909][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   12.127031][   T12]  kthread (kernel/kthread.c:436)
[   12.127122][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.127277][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.127402][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   12.127524][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   12.127675][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   12.127795][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.127917][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   12.130160][   T12] ------------[ cut here ]------------
| [   12.130288][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   12.130535][   T12] Modules linked in:
| [   12.130900][   T12] Tainted: [W]=WARN
[   12.130990][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.131140][   T12] Workqueue: netns cleanup_net
[   12.131272][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.131434][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.131860][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   12.132011][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c1f4c80 RCX: 1ff4000000018eed
[   12.132197][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c1f4d3c
[   12.132381][   T12] RBP: ff1100000a489000 R08: 1fe220000183e9a9 R09: ff11000001aed1d0
[   12.132563][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   12.132742][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   12.132923][   T12] FS:  0000000000000000(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   12.133133][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.133290][   T12] CR2: 000055caeb758028 CR3: 000000003c54d001 CR4: 0000000000771ef0
[   12.133482][   T12] PKRU: 55555554
[   12.133572][   T12] Call Trace:
[   12.133662][   T12]  <TASK>
[   12.133726][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   12.133881][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   12.134030][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   12.134155][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   12.134277][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   12.134400][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   12.134521][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   12.134657][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   12.134779][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   12.134898][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.135027][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   12.135155][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   12.135280][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   12.135406][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.135526][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.135648][   T12]  process_one_work (kernel/workqueue.c:3314)
[   12.135772][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   12.135893][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.136022][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   12.136152][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   12.136280][   T12]  kthread (kernel/kthread.c:436)
[   12.136388][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.136544][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.136666][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   12.136787][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   12.136948][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   12.137068][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.137193][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   12.147223][   T12] ------------[ cut here ]------------
| [   12.147373][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   12.147626][   T12] Modules linked in:
| [   12.148008][   T12] Tainted: [W]=WARN
[   12.148103][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.148268][   T12] Workqueue: netns cleanup_net
[   12.148405][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.148570][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.149012][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   12.149176][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c1f4e40 RCX: 1ff4000000018eaf
[   12.149367][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c1f4efc
[   12.149553][   T12] RBP: ff11000008821000 R08: 1fe220000183e9e1 R09: ff11000001aed1d0
[   12.149740][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000041
[   12.149931][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008499000
[   12.150123][   T12] FS:  0000000000000000(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   12.150352][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.150509][   T12] CR2: 000055caeb758028 CR3: 000000003c54d001 CR4: 0000000000771ef0
[   12.150696][   T12] PKRU: 55555554
[   12.150789][   T12] Call Trace:
[   12.150882][   T12]  <TASK>
[   12.150947][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.151074][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.151231][   T12]  netif_close_many (net/core/dev.c:1804)
[   12.151360][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.151485][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.151609][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.151734][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   12.151859][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   12.152014][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   12.152223][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   12.152352][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   12.152508][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   12.152632][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   12.152755][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   12.152912][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   12.153039][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   12.153216][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   12.153397][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   12.153527][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   12.153652][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   12.153779][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   12.153904][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.154033][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   12.154210][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   12.154339][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   12.154465][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.154590][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.154716][   T12]  process_one_work (kernel/workqueue.c:3314)
[   12.154844][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   12.154969][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.155099][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   12.155281][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   12.155411][   T12]  kthread (kernel/kthread.c:436)
[   12.155506][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.155663][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.155790][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   12.155917][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   12.156072][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   12.156248][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.156377][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   12.166201][   T12] ------------[ cut here ]------------
| [   12.166346][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   12.166598][   T12] Modules linked in:
| [   12.166985][   T12] Tainted: [W]=WARN
[   12.167082][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.167253][   T12] Workqueue: netns cleanup_net
[   12.167393][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.167560][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.168014][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   12.168180][   T12] RAX: 00000000ffffffa6 RBX: ff1100000b1b4900 RCX: 1ff4000000018eaf
[   12.168378][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b1b49bc
[   12.168565][   T12] RBP: ff11000008499000 R08: 1fe2200001636939 R09: ff11000001aed1d0
[   12.168754][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   12.168943][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e134000
[   12.169137][   T12] FS:  0000000000000000(0000) GS:ff110000b3c47000(0000) knlGS:0000000000000000
[   12.169367][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.169525][   T12] CR2: 000055caeb759910 CR3: 000000003c54d005 CR4: 0000000000771ef0
[   12.169716][   T12] PKRU: 55555554
[   12.169810][   T12] Call Trace:
[   12.169904][   T12]  <TASK>
[   12.169971][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.170099][   T12]  ? notifier_call_chain (kernel/notifier.c:85)
[   12.170234][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.170336][   T12]  netif_close_many (net/core/dev.c:1804)
[   12.170464][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.170588][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.170714][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.170840][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   12.170968][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   12.171129][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   12.171292][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   12.171423][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   12.171587][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   12.171714][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   12.171840][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   12.172000][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   12.172127][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   12.172258][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   12.172389][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   12.172516][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   12.172643][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   12.172772][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   12.172899][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.173026][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   12.173156][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   12.173281][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   12.173412][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.173537][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.173663][   T12]  process_one_work (kernel/workqueue.c:3314)
[   12.173793][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   12.173920][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.174051][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   12.174185][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   12.174315][   T12]  kthread (kernel/kthread.c:436)
[   12.174409][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.174566][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.174693][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   12.174821][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   12.174978][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   12.175104][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.175241][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   12.177860][   T12] ------------[ cut here ]------------
| [   12.177990][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   12.178242][   T12] Modules linked in:
| [   12.178624][   T12] Tainted: [W]=WARN
[   12.178718][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.178873][   T12] Workqueue: netns cleanup_net
[   12.179001][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.179169][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.179616][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   12.179773][   T12] RAX: 00000000ffffffa6 RBX: ff1100000e54a740 RCX: 1ff4000000018eaf
[   12.179957][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e54a7fc
[   12.180147][   T12] RBP: ff1100000e134000 R08: 1fe2200001ca9501 R09: ff11000001aed1d0
[   12.180336][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   12.180522][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000000c77e0
[   12.180709][   T12] FS:  0000000000000000(0000) GS:ff110000b3c47000(0000) knlGS:0000000000000000
[   12.180925][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.181083][   T12] CR2: 000055caeb759910 CR3: 000000003c54d005 CR4: 0000000000771ef0
[   12.181280][   T12] PKRU: 55555554
[   12.181379][   T12] Call Trace:
[   12.181473][   T12]  <TASK>
[   12.181539][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.181665][   T12]  ? notifier_call_chain (kernel/notifier.c:85)
[   12.181791][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.181887][   T12]  netif_close_many (net/core/dev.c:1804)
[   12.182014][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.182140][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.182269][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.182396][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   12.182525][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   12.182681][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   12.182838][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   12.182965][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   12.183121][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   12.183250][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   12.183378][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   12.183534][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   12.183662][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   12.183789][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   12.183916][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   12.184042][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   12.184260][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   12.184393][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   12.184516][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.184644][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   12.184847][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   12.184971][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   12.185098][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.185227][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.185357][   T12]  process_one_work (kernel/workqueue.c:3314)
[   12.185488][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   12.185612][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.185820][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   12.185949][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   12.186073][   T12]  kthread (kernel/kthread.c:436)
[   12.186173][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.186331][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.186535][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   12.186661][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   12.186817][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   12.186942][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.187155][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   12.189569][   T12] ------------[ cut here ]------------
| [   12.189695][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   12.190005][   T12] Modules linked in:
| [   12.190922][   T12] Tainted: [W]=WARN
[   12.191016][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.191215][   T12] Workqueue: netns cleanup_net
[   12.191347][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.191503][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.192009][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   12.192208][   T12] RAX: 00000000ffffffa6 RBX: ff1100000e54b380 RCX: 1ff4000000018ed5
[   12.192393][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e54b43c
[   12.192578][   T12] RBP: ff11000008821000 R08: 1fe2200001ca9689 R09: ff11000001aed1d0
[   12.192832][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   12.193012][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   12.193317][   T12] FS:  0000000000000000(0000) GS:ff110000b3c47000(0000) knlGS:0000000000000000
[   12.193533][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.193686][   T12] CR2: 000055caeb759910 CR3: 000000003c54d005 CR4: 0000000000771ef0
[   12.193869][   T12] PKRU: 55555554
[   12.193959][   T12] Call Trace:
[   12.194051][   T12]  <TASK>
[   12.194114][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   12.194319][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   12.194469][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   12.194662][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   12.194783][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   12.194937][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   12.195061][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   12.195227][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   12.195347][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   12.195470][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   12.195598][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   12.195718][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.195842][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   12.195965][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   12.196205][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   12.196330][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.196451][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.196574][   T12]  process_one_work (kernel/workqueue.c:3314)
[   12.196700][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   12.196821][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.196947][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   12.197072][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   12.197240][   T12]  kthread (kernel/kthread.c:436)
[   12.197408][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.197560][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.197683][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   12.197802][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   12.198026][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   12.198194][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.198394][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   12.202468][   T12] ------------[ cut here ]------------
| [   12.202599][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   12.202837][   T12] Modules linked in:
| [   12.203214][   T12] Tainted: [W]=WARN
[   12.203311][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.203462][   T12] Workqueue: netns cleanup_net
[   12.203591][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.203750][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.204190][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   12.204347][   T12] RAX: 00000000ffffffa6 RBX: ff1100000e54bc40 RCX: 1ff4000000018ed5
[   12.204528][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e54bcfc
[   12.204711][   T12] RBP: ff11000008499000 R08: 1fe2200001ca97a1 R09: ff11000001aed1d0
[   12.204892][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   12.205072][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   12.205259][   T12] FS:  0000000000000000(0000) GS:ff110000b3c47000(0000) knlGS:0000000000000000
[   12.205479][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.205631][   T12] CR2: 000055caeb759910 CR3: 000000003c54d005 CR4: 0000000000771ef0
[   12.205812][   T12] PKRU: 55555554
[   12.205903][   T12] Call Trace:
[   12.205992][   T12]  <TASK>
[   12.206055][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   12.206214][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   12.206368][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   12.206489][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   12.206613][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   12.206767][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   12.206892][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   12.207014][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   12.207136][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   12.207263][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   12.207390][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   12.207512][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.207637][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   12.207759][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   12.207879][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   12.208003][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.208124][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.208335][   T12]  process_one_work (kernel/workqueue.c:3314)
[   12.208461][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   12.208583][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.208710][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   12.208837][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   12.208959][   T12]  kthread (kernel/kthread.c:436)
[   12.209052][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.209254][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.209378][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   12.209502][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   12.209651][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   12.209773][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.209894][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   12.214634][   T12] ------------[ cut here ]------------
| [   12.214775][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   12.215015][   T12] Modules linked in:
| [   12.215968][   T12] Tainted: [W]=WARN
[   12.216062][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.216282][   T12] Workqueue: netns cleanup_net
[   12.216412][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.216568][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.216998][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   12.217221][   T12] RAX: 00000000ffffffa6 RBX: ff1100000e25a900 RCX: 1ff4000000018ed5
[   12.217405][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e25a9bc
[   12.217583][   T12] RBP: ff1100000e134000 R08: 1fe2200001c4b539 R09: ff11000001aed1d0
[   12.217762][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   12.217942][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   12.218122][   T12] FS:  0000000000000000(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   12.218484][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.218634][   T12] CR2: 00007f94edc9b2a0 CR3: 000000003c54d001 CR4: 0000000000771ef0
[   12.218817][   T12] PKRU: 55555554
[   12.218907][   T12] Call Trace:
[   12.218995][   T12]  <TASK>
[   12.219060][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   12.219315][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   12.219464][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   12.219583][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   12.219703][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   12.219858][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   12.219981][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   12.220103][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   12.220318][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   12.220442][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   12.220565][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   12.220686][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.220810][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   12.220933][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   12.221052][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   12.221262][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.221385][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.221506][   T12]  process_one_work (kernel/workqueue.c:3314)
[   12.221630][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   12.221749][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.221876][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   12.222001][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   12.222121][   T12]  kthread (kernel/kthread.c:436)
[   12.222303][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.222453][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.222573][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   12.222694][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   12.222845][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   12.222966][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.223086][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   12.263346][   T12] ------------[ cut here ]------------
| [   12.263493][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   12.263730][   T12] Modules linked in:
| [   12.264102][   T12] Tainted: [W]=WARN
[   12.264204][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.264403][   T12] Workqueue: netns cleanup_net
[   12.264547][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.264704][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.265132][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   12.265292][   T12] RAX: 00000000ffffffa6 RBX: ff1100000e25b700 RCX: 1ff4000000018eed
[   12.265476][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e25b7bc
[   12.265652][   T12] RBP: ff1100000f224000 R08: 1fe2200001c4b6f9 R09: ff11000001aed1d0
[   12.265832][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   12.266007][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   12.266196][   T12] FS:  0000000000000000(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   12.266409][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.266559][   T12] CR2: 00007f94edc9b2a0 CR3: 000000003c54d001 CR4: 0000000000771ef0
[   12.266738][   T12] PKRU: 55555554
[   12.266826][   T12] Call Trace:
[   12.266914][   T12]  <TASK>
[   12.266976][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   12.267126][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   12.267280][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   12.267407][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   12.267526][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   12.267643][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   12.267762][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   12.267881][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   12.268001][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   12.268119][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.268245][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   12.268373][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   12.268490][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   12.268611][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.268729][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.268854][   T12]  process_one_work (kernel/workqueue.c:3314)
[   12.268976][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   12.269094][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.269224][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   12.269354][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   12.269471][   T12]  kthread (kernel/kthread.c:436)
[   12.269562][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.269708][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.269831][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   12.269952][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   12.270099][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   12.270273][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.270396][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   12.273412][   T12] ------------[ cut here ]------------
| [   12.273550][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   12.273830][   T12] Modules linked in:
| [   12.274331][   T12] Tainted: [W]=WARN
[   12.274423][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.274574][   T12] Workqueue: netns cleanup_net
[   12.274697][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.274853][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.275331][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   12.275527][   T12] RAX: 00000000ffffffa6 RBX: ff1100000e25be00 RCX: 1ff4000000018eed
[   12.275701][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e25bebc
[   12.275877][   T12] RBP: ff1100000e479000 R08: 1fe2200001c4b7d9 R09: ff11000001aed1d0
[   12.276052][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   12.276274][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   12.276453][   T12] FS:  0000000000000000(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   12.276658][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.276809][   T12] CR2: 00007f94edc9b2a0 CR3: 000000003c54d001 CR4: 0000000000771ef0
[   12.276986][   T12] PKRU: 55555554
[   12.277079][   T12] Call Trace:
[   12.277248][   T12]  <TASK>
[   12.277314][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   12.277466][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   12.277611][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   12.277729][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   12.277849][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   12.277967][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   12.278087][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   12.278280][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   12.278404][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   12.278520][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.278642][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   12.278762][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   12.278880][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   12.279001][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.279118][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.279254][   T12]  process_one_work (kernel/workqueue.c:3314)
[   12.279379][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   12.279495][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.279618][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   12.279745][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   12.279866][   T12]  kthread (kernel/kthread.c:436)
[   12.279956][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.280101][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.280227][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   12.280352][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   12.280498][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   12.280619][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.280738][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   12.284080][   T12] ------------[ cut here ]------------
| [   12.284227][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   12.284469][   T12] Modules linked in:
| [   12.284835][   T12] Tainted: [W]=WARN
[   12.284926][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.285075][   T12] Workqueue: netns cleanup_net
[   12.285206][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.285365][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.285796][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   12.285947][   T12] RAX: 00000000ffffffa6 RBX: ff110000060be580 RCX: 1ff4000000018eed
[   12.286127][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000060be63c
[   12.286314][   T12] RBP: ff110000087f1000 R08: 1fe2200000c17cc9 R09: ff11000001aed1d0
[   12.286491][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   12.286668][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   12.286847][   T12] FS:  0000000000000000(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   12.287056][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.287213][   T12] CR2: 00007f94edc9b2a0 CR3: 000000003c54d001 CR4: 0000000000771ef0
[   12.287396][   T12] PKRU: 55555554
[   12.287485][   T12] Call Trace:
[   12.287574][   T12]  <TASK>
[   12.287637][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   12.287788][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   12.287941][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   12.288066][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   12.288190][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   12.288315][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   12.288438][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   12.288560][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   12.288680][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   12.288799][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.288968][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   12.289105][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   12.289236][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   12.289366][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.289484][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.289604][   T12]  process_one_work (kernel/workqueue.c:3314)
[   12.289726][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   12.289844][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.289967][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   12.290090][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   12.290236][   T12]  kthread (kernel/kthread.c:436)
[   12.290331][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.290476][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.290595][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   12.290714][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   12.290864][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   12.290982][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.291107][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   12.293854][   T12] ------------[ cut here ]------------
| [   12.293996][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   12.294243][   T12] Modules linked in:
| [   12.294614][   T12] Tainted: [W]=WARN
[   12.294706][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.294860][   T12] Workqueue: netns cleanup_net
[   12.294987][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.295154][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.295587][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   12.295739][   T12] RAX: 00000000ffffffa6 RBX: ff110000060be900 RCX: 1ff4000000018eed
[   12.295922][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000060be9bc
[   12.296101][   T12] RBP: ff11000002949000 R08: 1fe2200000c17d39 R09: ff11000001aed1d0
[   12.296288][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   12.296475][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   12.296655][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   12.296869][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.297020][   T12] CR2: 00007fba095ea930 CR3: 000000003c54d001 CR4: 0000000000771ef0
[   12.297205][   T12] PKRU: 55555554
[   12.297301][   T12] Call Trace:
[   12.297389][   T12]  <TASK>
[   12.297452][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   12.297608][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   12.297760][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   12.297881][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   12.298004][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   12.298124][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   12.298252][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   12.298379][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   12.298506][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   12.298628][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.298751][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   12.298871][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   12.298988][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   12.299112][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.299238][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.299363][   T12]  process_one_work (kernel/workqueue.c:3314)
[   12.299492][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   12.299612][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.299737][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   12.299861][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   12.299980][   T12]  kthread (kernel/kthread.c:436)
[   12.300070][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.300225][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.300350][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   12.300470][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   12.300620][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   12.300740][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.300861][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   12.302838][   T12] ------------[ cut here ]------------
| [   12.302960][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   12.303352][   T12] Modules linked in:
| [   12.303716][   T12] Tainted: [W]=WARN
[   12.303806][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.303955][   T12] Workqueue: netns cleanup_net
[   12.304080][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.304241][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.304672][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   12.304821][   T12] RAX: 00000000ffffffa6 RBX: ff110000060bec80 RCX: 1ff4000000018eed
[   12.304998][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000060bed3c
[   12.305187][   T12] RBP: ff1100000f46c000 R08: 1fe2200000c17da9 R09: ff11000001aed1d0
[   12.305372][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   12.305550][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   12.305730][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   12.305939][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.306091][   T12] CR2: 00007fba095ea930 CR3: 000000003c54d001 CR4: 0000000000771ef0
[   12.306276][   T12] PKRU: 55555554
[   12.306368][   T12] Call Trace:
[   12.306457][   T12]  <TASK>
[   12.306520][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   12.306673][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   12.306822][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   12.306942][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   12.307063][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   12.307191][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   12.307316][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   12.307437][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   12.307559][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   12.307678][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.307799][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   12.307922][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   12.308041][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   12.308169][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.308292][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.308417][   T12]  process_one_work (kernel/workqueue.c:3314)
[   12.308544][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   12.308664][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.308801][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   12.308924][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   12.309043][   T12]  kthread (kernel/kthread.c:436)
[   12.309134][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.309293][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.309421][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   12.309549][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   12.309700][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   12.309819][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.309939][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   12.323168][   T12] ------------[ cut here ]------------
| [   12.323308][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   12.323555][   T12] Modules linked in:
| [   12.323937][   T12] Tainted: [W]=WARN
[   12.324032][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.324572][   T12] Workqueue: netns cleanup_net
[   12.324705][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.324869][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.325376][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   12.325537][   T12] RAX: 00000000ffffffa6 RBX: ff110000060bee40 RCX: 1ff4000000018eaf
[   12.325724][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000060beefc
[   12.325913][   T12] RBP: ff1100000f4c9000 R08: 1fe2200000c17de1 R09: ff11000001aed1d0
[   12.326101][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[   12.326345][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000000c77e0
[   12.326533][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   12.326798][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.326955][   T12] CR2: 00007fba095ea930 CR3: 000000003c54d001 CR4: 0000000000771ef0
[   12.327193][   T12] PKRU: 55555554
[   12.327287][   T12] Call Trace:
[   12.327384][   T12]  <TASK>
[   12.327449][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.327576][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.327671][   T12]  netif_close_many (net/core/dev.c:1804)
[   12.327797][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.327921][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.328046][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.328223][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   12.328353][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   12.328510][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   12.328667][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   12.328792][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   12.328916][   T12]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   12.329041][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   12.329249][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   12.329383][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   12.329509][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   12.329635][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   12.329762][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   12.329888][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   12.330013][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   12.330137][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.330318][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   12.330444][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   12.330570][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   12.330696][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.330822][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.330948][   T12]  process_one_work (kernel/workqueue.c:3314)
[   12.331078][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   12.331257][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.331392][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   12.331522][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   12.331647][   T12]  kthread (kernel/kthread.c:436)
[   12.331741][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.331899][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.332024][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   12.332201][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   12.332361][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   12.332487][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.332613][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   12.341307][   T12] ------------[ cut here ]------------
| [   12.341449][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   12.341693][   T12] Modules linked in:
| [   12.342070][   T12] Tainted: [W]=WARN
[   12.342170][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.342333][   T12] Workqueue: netns cleanup_net
[   12.342462][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.342622][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.343063][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   12.343222][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c3be040 RCX: 1ff4000000018ed5
[   12.343410][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c3be0fc
[   12.343594][   T12] RBP: ff1100000f4c9000 R08: 1fe2200001877c21 R09: ff11000001aed1d0
[   12.343776][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   12.343958][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   12.344153][   T12] FS:  0000000000000000(0000) GS:ff110000b3c47000(0000) knlGS:0000000000000000
[   12.344377][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.344534][   T12] CR2: 000055cac4457d5c CR3: 000000000a2c9001 CR4: 0000000000771ef0
[   12.344717][   T12] PKRU: 55555554
[   12.344809][   T12] Call Trace:
[   12.344901][   T12]  <TASK>
[   12.344965][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   12.345123][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   12.345287][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   12.345419][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   12.345544][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   12.345668][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   12.345791][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   12.345915][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   12.346039][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   12.346168][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.346300][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   12.346426][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   12.346557][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   12.346681][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.346804][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.346929][   T12]  process_one_work (kernel/workqueue.c:3314)
[   12.347056][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   12.347185][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.347316][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   12.347442][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   12.347564][   T12]  kthread (kernel/kthread.c:436)
[   12.347657][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.347810][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.347934][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   12.348059][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   12.348216][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   12.348341][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.348469][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   12.357764][  T237] ------------[ cut here ]------------
| [   12.357921][  T237] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/237
| [   12.358170][  T237] Modules linked in:
| [   12.358552][  T237] Tainted: [W]=WARN
[   12.358654][  T237] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.358821][  T237] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.358996][  T237] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.359543][  T237] RSP: 0018:ffa00000005a7a80 EFLAGS: 00010286
[   12.359714][  T237] RAX: 00000000ffffffa6 RBX: ff1100000c3bf540 RCX: 1ff40000000b4f16
[   12.359915][  T237] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c3bf5fc
[   12.360114][  T237] RBP: ff11000008f11000 R08: 1fe2200001877ec1 R09: ff1100000fca0b80
[   12.360394][  T237] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   12.360595][  T237] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008f11000
[   12.360796][  T237] FS:  00007f9ddedea840(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   12.361034][  T237] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.361265][  T237] CR2: 00007fba0942d574 CR3: 000000000e0ed001 CR4: 0000000000771ef0
[   12.361474][  T237] PKRU: 55555554
[   12.361574][  T237] Call Trace:
[   12.361675][  T237]  <TASK>
[   12.361745][  T237]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.361880][  T237]  ? notifier_call_chain (kernel/notifier.c:85)
[   12.362015][  T237]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.362118][  T237]  register_netdevice (net/core/dev.c:11488)
[   12.362279][  T237]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.362451][  T237]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   12.362595][  T237]  register_netdev (net/core/dev.c:11552)
[   12.362729][  T237]  loopback_net_init (drivers/net/loopback.c:218)
[   12.362865][  T237]  ops_init (net/core/net_namespace.c:137)
[   12.362968][  T237]  setup_net (net/core/net_namespace.c:446)
[   12.363069][  T237]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   12.363209][  T237]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   12.363348][  T237]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   12.363484][  T237]  copy_net_ns (net/core/net_namespace.c:579)
[   12.363621][  T237]  create_new_namespaces (kernel/nsproxy.c:132)
[   12.363759][  T237]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   12.363894][  T237]  ksys_unshare (kernel/fork.c:3243)
[   12.364029][  T237]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.364172][  T237]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   12.364309][  T237]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   12.364447][  T237]  ? __ia32_sys_open (fs/open.c:1374)
[   12.364584][  T237]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   12.364717][  T237]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.364851][  T237]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.364984][  T237]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.365118][  T237]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.365256][  T237]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.365431][  T237] RIP: 0033:0x7f9ddf0acbcb
[   12.365573][  T237] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   12.366050][  T237] RSP: 002b:00007ffc8c46a1e8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   12.366258][  T237] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f9ddf0acbcb
[   12.366464][  T237] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   12.366665][  T237] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   12.366866][  T237] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc8c46c410
[   12.367068][  T237] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc8c46c867
| [   12.371375][  T237] ------------[ cut here ]------------
| [   12.371521][  T237] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/237
| [   12.371756][  T237] Modules linked in:
| [   12.372128][  T237] Tainted: [W]=WARN
[   12.372235][  T237] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.372408][  T237] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.372582][  T237] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.373057][  T237] RSP: 0018:ffa00000005a7918 EFLAGS: 00010286
[   12.373231][  T237] RAX: 00000000ffffffa6 RBX: ff110000024003c0 RCX: 1ff40000000b4ee9
[   12.373434][  T237] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000240047c
[   12.373634][  T237] RBP: ff1100000a541000 R08: 1fe2200000480091 R09: ff1100000fca0b80
[   12.373835][  T237] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   12.374034][  T237] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a541000
[   12.374240][  T237] FS:  00007f9ddedea840(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   12.374476][  T237] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.374644][  T237] CR2: 00007fba0942d574 CR3: 000000000e0ed001 CR4: 0000000000771ef0
[   12.374847][  T237] PKRU: 55555554
[   12.374948][  T237] Call Trace:
[   12.375047][  T237]  <TASK>
[   12.375116][  T237]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.375255][  T237]  ? notifier_call_chain (kernel/notifier.c:85)
[   12.375395][  T237]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.375496][  T237]  register_netdevice (net/core/dev.c:11488)
[   12.375632][  T237]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.375797][  T237]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   12.375933][  T237]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   12.376069][  T237]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   12.376207][  T237]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   12.376345][  T237]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   12.376477][  T237]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   12.376611][  T237]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   12.376746][  T237]  ops_init (net/core/net_namespace.c:137)
[   12.376847][  T237]  setup_net (net/core/net_namespace.c:446)
[   12.376947][  T237]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   12.377080][  T237]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   12.377218][  T237]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   12.377358][  T237]  copy_net_ns (net/core/net_namespace.c:579)
[   12.377492][  T237]  create_new_namespaces (kernel/nsproxy.c:132)
[   12.377629][  T237]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   12.377762][  T237]  ksys_unshare (kernel/fork.c:3243)
[   12.377895][  T237]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.378030][  T237]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   12.378167][  T237]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   12.378304][  T237]  ? __ia32_sys_open (fs/open.c:1374)
[   12.378438][  T237]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   12.378570][  T237]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.378704][  T237]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.378837][  T237]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.378970][  T237]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.379104][  T237]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.379272][  T237] RIP: 0033:0x7f9ddf0acbcb
[   12.379413][  T237] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   12.379892][  T237] RSP: 002b:00007ffc8c46a1e8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   12.380092][  T237] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f9ddf0acbcb
[   12.380300][  T237] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   12.380498][  T237] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   12.380697][  T237] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc8c46c410
[   12.380900][  T237] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc8c46c867
| [   12.391978][  T237] ------------[ cut here ]------------
| [   12.392130][  T237] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/237
| [   12.392378][  T237] Modules linked in:
| [   12.392762][  T237] Tainted: [W]=WARN
[   12.392867][  T237] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.393035][  T237] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.393214][  T237] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.393693][  T237] RSP: 0018:ffa00000005a78f8 EFLAGS: 00010286
[   12.393863][  T237] RAX: 00000000ffffffa6 RBX: ff11000009535380 RCX: 1ff40000000b4ee5
[   12.394064][  T237] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000953543c
[   12.394271][  T237] RBP: ff11000008b71000 R08: 1fe22000012a6a89 R09: ff1100000fca0b80
[   12.394477][  T237] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   12.394678][  T237] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008b71000
[   12.394881][  T237] FS:  00007f9ddedea840(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   12.395117][  T237] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.395288][  T237] CR2: 00007fba0942d574 CR3: 000000000e0ed001 CR4: 0000000000771ef0
[   12.395495][  T237] PKRU: 55555554
[   12.395596][  T237] Call Trace:
[   12.395696][  T237]  <TASK>
[   12.395765][  T237]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.395899][  T237]  ? notifier_call_chain (kernel/notifier.c:85)
[   12.396035][  T237]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.396137][  T237]  register_netdevice (net/core/dev.c:11488)
[   12.396277][  T237]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.396450][  T237]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   12.396588][  T237]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   12.396722][  T237]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   12.396857][  T237]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   12.396992][  T237]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   12.397128][  T237]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   12.397269][  T237]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   12.397408][  T237]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   12.397546][  T237]  vti_init_net (net/ipv4/ip_vti.c:517)
[   12.397684][  T237]  ops_init (net/core/net_namespace.c:137)
[   12.397786][  T237]  setup_net (net/core/net_namespace.c:446)
[   12.397888][  T237]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   12.398022][  T237]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   12.398159][  T237]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   12.398296][  T237]  copy_net_ns (net/core/net_namespace.c:579)
[   12.398432][  T237]  create_new_namespaces (kernel/nsproxy.c:132)
[   12.398570][  T237]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   12.398706][  T237]  ksys_unshare (kernel/fork.c:3243)
[   12.398840][  T237]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.398977][  T237]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   12.399110][  T237]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   12.399251][  T237]  ? __ia32_sys_open (fs/open.c:1374)
[   12.399391][  T237]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   12.399525][  T237]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.399658][  T237]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.399793][  T237]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.399927][  T237]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.400061][  T237]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.400234][  T237] RIP: 0033:0x7f9ddf0acbcb
[   12.400378][  T237] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   12.400858][  T237] RSP: 002b:00007ffc8c46a1e8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   12.401062][  T237] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f9ddf0acbcb
[   12.401268][  T237] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   12.401472][  T237] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   12.401673][  T237] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc8c46c410
[   12.401873][  T237] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc8c46c867
| [   12.405950][  T237] ------------[ cut here ]------------
| [   12.406098][  T237] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/237
| [   12.406335][  T237] Modules linked in:
| [   12.406706][  T237] Tainted: [W]=WARN
[   12.406805][  T237] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.406993][  T237] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.407172][  T237] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.407650][  T237] RSP: 0018:ffa00000005a7a78 EFLAGS: 00010286
[   12.407817][  T237] RAX: 00000000ffffffa6 RBX: ff11000009534580 RCX: 1ff40000000b4f15
[   12.408015][  T237] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000953463c
[   12.408217][  T237] RBP: ff11000005141000 R08: 1fe22000012a68c9 R09: ff1100000fca0b80
[   12.408420][  T237] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   12.408617][  T237] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000005141000
[   12.408818][  T237] FS:  00007f9ddedea840(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   12.409050][  T237] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.409221][  T237] CR2: 00007fba0942d574 CR3: 000000000e0ed001 CR4: 0000000000771ef0
[   12.409427][  T237] PKRU: 55555554
[   12.409526][  T237] Call Trace:
[   12.409624][  T237]  <TASK>
[   12.409694][  T237]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.409830][  T237]  ? notifier_call_chain (kernel/notifier.c:85)
[   12.409965][  T237]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.410068][  T237]  register_netdevice (net/core/dev.c:11488)
[   12.410216][  T237]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.410387][  T237]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.410524][  T237]  register_netdev (net/core/dev.c:11552)
[   12.410661][  T237]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   12.410798][  T237]  ops_init (net/core/net_namespace.c:137)
[   12.410902][  T237]  setup_net (net/core/net_namespace.c:446)
[   12.411003][  T237]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   12.411138][  T237]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   12.411281][  T237]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   12.411422][  T237]  copy_net_ns (net/core/net_namespace.c:579)
[   12.411558][  T237]  create_new_namespaces (kernel/nsproxy.c:132)
[   12.411697][  T237]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   12.411831][  T237]  ksys_unshare (kernel/fork.c:3243)
[   12.411966][  T237]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.412100][  T237]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   12.412239][  T237]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   12.412377][  T237]  ? __ia32_sys_open (fs/open.c:1374)
[   12.412512][  T237]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   12.412646][  T237]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.412780][  T237]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.412915][  T237]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.413060][  T237]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.413198][  T237]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.413366][  T237] RIP: 0033:0x7f9ddf0acbcb
[   12.413505][  T237] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   12.413989][  T237] RSP: 002b:00007ffc8c46a1e8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   12.414196][  T237] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f9ddf0acbcb
[   12.414398][  T237] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   12.414599][  T237] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   12.414799][  T237] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc8c46c410
[   12.415002][  T237] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc8c46c867
| [   12.419091][  T237] ------------[ cut here ]------------
| [   12.419722][  T237] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/237
| [   12.419964][  T237] Modules linked in:
| [   12.420400][  T237] Tainted: [W]=WARN
[   12.420503][  T237] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.420676][  T237] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.420850][  T237] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.421393][  T237] RSP: 0018:ffa00000005a7a68 EFLAGS: 00010286
[   12.421565][  T237] RAX: 00000000ffffffa6 RBX: ff110000024018c0 RCX: 1ff40000000b4f13
[   12.421764][  T237] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000240197c
[   12.421964][  T237] RBP: ff11000004f7c000 R08: 1fe2200000480331 R09: ff1100000fca0b80
[   12.422219][  T237] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   12.422426][  T237] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000004f7c000
[   12.422634][  T237] FS:  00007f9ddedea840(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   12.422871][  T237] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.423040][  T237] CR2: 00007fba0942d574 CR3: 000000000e0ed001 CR4: 0000000000771ef0
[   12.423304][  T237] PKRU: 55555554
[   12.423406][  T237] Call Trace:
[   12.423511][  T237]  <TASK>
[   12.423582][  T237]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.423717][  T237]  ? notifier_call_chain (kernel/notifier.c:85)
[   12.423853][  T237]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.423958][  T237]  register_netdevice (net/core/dev.c:11488)
[   12.424096][  T237]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.424326][  T237]  register_netdev (net/core/dev.c:11552)
[   12.424467][  T237]  sit_init_net (net/ipv6/sit.c:1860)
[   12.424606][  T237]  ops_init (net/core/net_namespace.c:137)
[   12.424710][  T237]  setup_net (net/core/net_namespace.c:446)
[   12.424813][  T237]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   12.424948][  T237]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   12.425084][  T237]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   12.425274][  T237]  copy_net_ns (net/core/net_namespace.c:579)
[   12.425419][  T237]  create_new_namespaces (kernel/nsproxy.c:132)
[   12.425559][  T237]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   12.425693][  T237]  ksys_unshare (kernel/fork.c:3243)
[   12.425827][  T237]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.425961][  T237]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   12.426096][  T237]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   12.426299][  T237]  ? __ia32_sys_open (fs/open.c:1374)
[   12.426436][  T237]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   12.426575][  T237]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.426711][  T237]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.426845][  T237]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.426981][  T237]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.427115][  T237]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.427337][  T237] RIP: 0033:0x7f9ddf0acbcb
[   12.427475][  T237] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   12.427963][  T237] RSP: 002b:00007ffc8c46a1e8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   12.428224][  T237] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f9ddf0acbcb
[   12.428482][  T237] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   12.428688][  T237] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   12.428887][  T237] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc8c46c410
[   12.429087][  T237] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc8c46c867
| [   12.434410][  T237] ------------[ cut here ]------------
| [   12.434560][  T237] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/237
| [   12.434795][  T237] Modules linked in:
| [   12.435180][  T237] Tainted: [W]=WARN
[   12.435281][  T237] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.435454][  T237] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.435631][  T237] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.436110][  T237] RSP: 0018:ffa00000005a7a78 EFLAGS: 00010286
[   12.436289][  T237] RAX: 00000000ffffffa6 RBX: ff11000004cefe00 RCX: 1ff40000000b4f15
[   12.436496][  T237] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000004cefebc
[   12.436697][  T237] RBP: ff1100000a281000 R08: 1fe220000099dfd9 R09: ff1100000fca0b80
[   12.436900][  T237] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   12.437101][  T237] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a281000
[   12.437313][  T237] FS:  00007f9ddedea840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   12.437550][  T237] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.437721][  T237] CR2: 00007fba095ea930 CR3: 000000000e0ed002 CR4: 0000000000771ef0
[   12.437924][  T237] PKRU: 55555554
[   12.438025][  T237] Call Trace:
[   12.438126][  T237]  <TASK>
[   12.438202][  T237]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.438340][  T237]  ? notifier_call_chain (kernel/notifier.c:85)
[   12.438475][  T237]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.438577][  T237]  register_netdevice (net/core/dev.c:11488)
[   12.438716][  T237]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.438883][  T237]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.439021][  T237]  register_netdev (net/core/dev.c:11552)
[   12.439158][  T237]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   12.439293][  T237]  ops_init (net/core/net_namespace.c:137)
[   12.439402][  T237]  setup_net (net/core/net_namespace.c:446)
[   12.439504][  T237]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   12.439640][  T237]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   12.439775][  T237]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   12.439911][  T237]  copy_net_ns (net/core/net_namespace.c:579)
[   12.440048][  T237]  create_new_namespaces (kernel/nsproxy.c:132)
[   12.440190][  T237]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   12.440331][  T237]  ksys_unshare (kernel/fork.c:3243)
[   12.440467][  T237]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.440603][  T237]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   12.440736][  T237]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   12.440872][  T237]  ? __ia32_sys_open (fs/open.c:1374)
[   12.441006][  T237]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   12.441148][  T237]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.441280][  T237]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.441419][  T237]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.441553][  T237]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.441686][  T237]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.441853][  T237] RIP: 0033:0x7f9ddf0acbcb
[   12.441993][  T237] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   12.442480][  T237] RSP: 002b:00007ffc8c46a1e8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   12.442686][  T237] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f9ddf0acbcb
[   12.442888][  T237] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   12.443090][  T237] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   12.443301][  T237] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc8c46c410
[   12.443503][  T237] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc8c46c867
| [   12.467583][  T238] ------------[ cut here ]------------
| [   12.467771][  T238] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/238
| [   12.468065][  T238] Modules linked in:
| [   12.468556][  T238] Tainted: [W]=WARN
[   12.468703][  T238] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.468917][  T238] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.469137][  T238] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.469679][  T238] RSP: 0018:ffa00000005e7020 EFLAGS: 00010286
[   12.469894][  T238] RAX: 00000000ffffffa6 RBX: ff1100000f0b7a80 RCX: 1ff40000000bcdca
[   12.470139][  T238] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000f0b7b3c
[   12.470410][  T238] RBP: ff11000008f11000 R08: 1fe2200001e16f69 R09: ff1100001001d158
[   12.470653][  T238] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[   12.470895][  T238] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   12.471153][  T238] FS:  00007fddd59b8840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   12.471441][  T238] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.471654][  T238] CR2: 000000000239d988 CR3: 0000000009b52004 CR4: 0000000000771ef0
[   12.471902][  T238] PKRU: 55555554
[   12.472047][  T238] Call Trace:
[   12.472207][  T238]  <TASK>
[   12.472332][  T238]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.472515][  T238]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.472666][  T238]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   12.472848][  T238]  __dev_notify_flags (net/core/dev.c:9787)
[   12.473031][  T238]  ? netif_change_name (net/core/dev.c:1495)
[   12.473222][  T238]  ? __dev_change_flags (net/core/dev.c:9752)
[   12.473407][  T238]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   12.473588][  T238]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.473770][  T238]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   12.473958][  T238]  netif_change_flags (net/core/dev.c:9820)
[   12.474154][  T238]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   12.474341][  T238]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   12.474525][  T238]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   12.474706][  T238]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   12.474920][  T238]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.475100][  T238]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   12.475307][  T238]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   12.475488][  T238]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   12.475671][  T238]  ? __kernel_text_address (kernel/extable.c:79)
[   12.475853][  T238]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.476037][  T238]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.476227][  T238]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   12.476419][  T238]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.476608][  T238]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.476787][  T238]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.476968][  T238]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.477162][  T238]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   12.477348][  T238]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   12.477529][  T238]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   12.477710][  T238]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   12.477894][  T238]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   12.478083][  T238]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   12.478281][  T238]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   12.478473][  T238]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.478652][  T238]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   12.478835][  T238]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   12.479016][  T238]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   12.479210][  T238]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.479403][  T238]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.479589][  T238]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   12.479773][  T238]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   12.479955][  T238]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.480137][  T238]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   12.480341][  T238]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   12.480522][  T238]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   12.480702][  T238]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.480886][  T238]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.481069][  T238]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.481258][  T238]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   12.481446][  T238]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   12.481630][  T238]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.481814][  T238]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.482000][  T238]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   12.482193][  T238]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   12.482391][  T238]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.482580][  T238]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.482764][  T238]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.482946][  T238]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   12.483131][  T238]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   12.483333][  T238]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   12.483522][  T238]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   12.483706][  T238]  ? copy_msghdr_from_user (net/socket.c:2635)
[   12.483890][  T238]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   12.484104][  T238]  ? move_addr_to_kernel (net/socket.c:258)
[   12.484305][  T238]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   12.484487][  T238]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   12.484671][  T238]  ___sys_sendmsg (net/socket.c:2752)
[   12.484853][  T238]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   12.485073][  T238]  ? copy_msghdr_from_user (net/socket.c:2603)
[   12.485279][  T238]  __sys_sendmsg (net/socket.c:2784)
[   12.485471][  T238]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   12.485651][  T238]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   12.485868][  T238]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   12.486051][  T238]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.486248][  T238]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.486442][  T238]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.486629][  T238]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.486811][  T238]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.487024][  T238] RIP: 0033:0x7fddd5bf208e
[   12.487226][  T238] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   12.487759][  T238] RSP: 002b:00007fff11b08580 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.488007][  T238] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fddd5bf208e
[   12.488268][  T238] RDX: 0000000000000000 RSI: 00007fff11b08630 RDI: 0000000000000005
[   12.488522][  T238] RBP: 00007fff11b08590 R08: 0000000000000000 R09: 0000000000000000
[   12.488772][  T238] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ea16
[   12.489020][  T238] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff11b08d00
| [   12.681772][  T246] ------------[ cut here ]------------
| [   12.681941][  T246] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/246
| [   12.682187][  T246] Modules linked in:
| [   12.682576][  T246] Tainted: [W]=WARN
[   12.682679][  T246] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.682849][  T246] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.683022][  T246] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.683506][  T246] RSP: 0018:ffa0000000af7a80 EFLAGS: 00010286
[   12.683676][  T246] RAX: 00000000ffffffa6 RBX: ff110000096243c0 RCX: 1ff400000015ef16
[   12.683875][  T246] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000962447c
[   12.684078][  T246] RBP: ff1100000f2e9000 R08: 1fe22000012c4891 R09: ff1100000f778b80
[   12.684287][  T246] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   12.684491][  T246] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f2e9000
[   12.684694][  T246] FS:  00007fb60d476840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   12.684932][  T246] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.685101][  T246] CR2: 00007fb60d7ef493 CR3: 000000000e4cf001 CR4: 0000000000771ef0
[   12.685313][  T246] PKRU: 55555554
[   12.685412][  T246] Call Trace:
[   12.685511][  T246]  <TASK>
[   12.685582][  T246]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.685718][  T246]  ? notifier_call_chain (kernel/notifier.c:85)
[   12.685854][  T246]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.685956][  T246]  register_netdevice (net/core/dev.c:11488)
[   12.686092][  T246]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.686263][  T246]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   12.686403][  T246]  register_netdev (net/core/dev.c:11552)
[   12.686536][  T246]  loopback_net_init (drivers/net/loopback.c:218)
[   12.686670][  T246]  ops_init (net/core/net_namespace.c:137)
[   12.686772][  T246]  setup_net (net/core/net_namespace.c:446)
[   12.686876][  T246]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   12.687007][  T246]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   12.687140][  T246]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   12.687286][  T246]  copy_net_ns (net/core/net_namespace.c:579)
[   12.687425][  T246]  create_new_namespaces (kernel/nsproxy.c:132)
[   12.687561][  T246]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   12.687696][  T246]  ksys_unshare (kernel/fork.c:3243)
[   12.687829][  T246]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.687965][  T246]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   12.688099][  T246]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   12.688239][  T246]  ? __ia32_sys_open (fs/open.c:1374)
[   12.688379][  T246]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   12.688511][  T246]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.688644][  T246]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.688778][  T246]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.688914][  T246]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.689049][  T246]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.689221][  T246] RIP: 0033:0x7fb60d738bcb
[   12.689366][  T246] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   12.689842][  T246] RSP: 002b:00007fffef0b85a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   12.690043][  T246] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fb60d738bcb
[   12.690251][  T246] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   12.690454][  T246] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   12.690653][  T246] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fffef0ba7d0
[   12.690853][  T246] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffef0bb865
| [   12.695194][  T246] ------------[ cut here ]------------
| [   12.695347][  T246] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/246
| [   12.695577][  T246] Modules linked in:
| [   12.695944][  T246] Tainted: [W]=WARN
[   12.696046][  T246] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.696218][  T246] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.696396][  T246] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.696863][  T246] RSP: 0018:ffa0000000af7918 EFLAGS: 00010286
[   12.697031][  T246] RAX: 00000000ffffffa6 RBX: ff1100000ca7ce40 RCX: 1ff400000015eee9
[   12.697233][  T246] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ca7cefc
[   12.697437][  T246] RBP: ff1100000f074000 R08: 1fe220000194f9e1 R09: ff1100000f778b80
[   12.697635][  T246] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   12.697833][  T246] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f074000
[   12.698031][  T246] FS:  00007fb60d476840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   12.698268][  T246] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.698435][  T246] CR2: 00007fb60d7ef493 CR3: 000000000e4cf001 CR4: 0000000000771ef0
[   12.698633][  T246] PKRU: 55555554
[   12.698734][  T246] Call Trace:
[   12.698833][  T246]  <TASK>
[   12.698901][  T246]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.699034][  T246]  ? notifier_call_chain (kernel/notifier.c:85)
[   12.699172][  T246]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.699273][  T246]  register_netdevice (net/core/dev.c:11488)
[   12.699409][  T246]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.699575][  T246]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   12.699708][  T246]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   12.699841][  T246]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   12.699973][  T246]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   12.700106][  T246]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   12.700245][  T246]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   12.700382][  T246]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   12.700516][  T246]  ops_init (net/core/net_namespace.c:137)
[   12.700618][  T246]  setup_net (net/core/net_namespace.c:446)
[   12.700719][  T246]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   12.700850][  T246]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   12.700981][  T246]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   12.701115][  T246]  copy_net_ns (net/core/net_namespace.c:579)
[   12.701313][  T246]  create_new_namespaces (kernel/nsproxy.c:132)
[   12.701448][  T246]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   12.701583][  T246]  ksys_unshare (kernel/fork.c:3243)
[   12.701715][  T246]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.701846][  T246]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   12.701978][  T246]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   12.702110][  T246]  ? __ia32_sys_open (fs/open.c:1374)
[   12.702305][  T246]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   12.702489][  T246]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.702622][  T246]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.702755][  T246]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.702885][  T246]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.703016][  T246]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.703234][  T246] RIP: 0033:0x7fb60d738bcb
[   12.703375][  T246] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   12.703844][  T246] RSP: 002b:00007fffef0b85a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   12.704044][  T246] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fb60d738bcb
[   12.704300][  T246] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   12.704497][  T246] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   12.704696][  T246] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fffef0ba7d0
[   12.704892][  T246] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffef0bb865
| [   12.709315][  T246] ------------[ cut here ]------------
| [   12.709462][  T246] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/246
| [   12.709694][  T246] Modules linked in:
| [   12.710066][  T246] Tainted: [W]=WARN
[   12.710246][  T246] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.710420][  T246] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.710593][  T246] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.711067][  T246] RSP: 0018:ffa0000000af78f8 EFLAGS: 00010286
[   12.711240][  T246] RAX: 00000000ffffffa6 RBX: ff11000009625e00 RCX: 1ff400000015eee5
[   12.711444][  T246] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009625ebc
[   12.711642][  T246] RBP: ff1100000e8d4000 R08: 1fe22000012c4bd9 R09: ff1100000f778b80
[   12.711840][  T246] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   12.712041][  T246] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e8d4000
[   12.712248][  T246] FS:  00007fb60d476840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   12.712487][  T246] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.712654][  T246] CR2: 00007fb60d7ef493 CR3: 000000000e4cf001 CR4: 0000000000771ef0
[   12.712858][  T246] PKRU: 55555554
[   12.712958][  T246] Call Trace:
[   12.713058][  T246]  <TASK>
[   12.713127][  T246]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.713267][  T246]  ? notifier_call_chain (kernel/notifier.c:85)
[   12.713403][  T246]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.713506][  T246]  register_netdevice (net/core/dev.c:11488)
[   12.713643][  T246]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.713813][  T246]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   12.713949][  T246]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   12.714085][  T246]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   12.714225][  T246]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   12.714364][  T246]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   12.714499][  T246]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   12.714634][  T246]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   12.714770][  T246]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   12.714906][  T246]  vti_init_net (net/ipv4/ip_vti.c:517)
[   12.715040][  T246]  ops_init (net/core/net_namespace.c:137)
[   12.715150][  T246]  setup_net (net/core/net_namespace.c:446)
[   12.715253][  T246]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   12.715390][  T246]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   12.715526][  T246]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   12.715662][  T246]  copy_net_ns (net/core/net_namespace.c:579)
[   12.715798][  T246]  create_new_namespaces (kernel/nsproxy.c:132)
[   12.715936][  T246]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   12.716071][  T246]  ksys_unshare (kernel/fork.c:3243)
[   12.716211][  T246]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.716351][  T246]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   12.716484][  T246]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   12.716619][  T246]  ? __ia32_sys_open (fs/open.c:1374)
[   12.716758][  T246]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   12.716891][  T246]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.717024][  T246]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.717159][  T246]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.717293][  T246]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.717431][  T246]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.717597][  T246] RIP: 0033:0x7fb60d738bcb
[   12.717736][  T246] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   12.718221][  T246] RSP: 002b:00007fffef0b85a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   12.718428][  T246] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fb60d738bcb
[   12.718629][  T246] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   12.718829][  T246] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   12.719029][  T246] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fffef0ba7d0
[   12.719235][  T246] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffef0bb865
| [   12.730869][  T246] ------------[ cut here ]------------
| [   12.731022][  T246] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/246
| [   12.731259][  T246] Modules linked in:
| [   12.731634][  T246] Tainted: [W]=WARN
[   12.731734][  T246] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.731904][  T246] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.732076][  T246] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.732561][  T246] RSP: 0018:ffa0000000af7a78 EFLAGS: 00010286
[   12.732728][  T246] RAX: 00000000ffffffa6 RBX: ff11000009625000 RCX: 1ff400000015ef15
[   12.732926][  T246] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000096250bc
[   12.733123][  T246] RBP: ff11000009d3c000 R08: 1fe22000012c4a19 R09: ff1100000f778b80
[   12.733332][  T246] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   12.733531][  T246] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009d3c000
[   12.733731][  T246] FS:  00007fb60d476840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   12.733963][  T246] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.734132][  T246] CR2: 00007fb60d7ef493 CR3: 000000000e4cf001 CR4: 0000000000771ef0
[   12.734344][  T246] PKRU: 55555554
[   12.734444][  T246] Call Trace:
[   12.734543][  T246]  <TASK>
[   12.734612][  T246]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.734746][  T246]  ? notifier_call_chain (kernel/notifier.c:85)
[   12.734879][  T246]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.734982][  T246]  register_netdevice (net/core/dev.c:11488)
[   12.735117][  T246]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.735287][  T246]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.735429][  T246]  register_netdev (net/core/dev.c:11552)
[   12.735561][  T246]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   12.735696][  T246]  ops_init (net/core/net_namespace.c:137)
[   12.735799][  T246]  setup_net (net/core/net_namespace.c:446)
[   12.735900][  T246]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   12.736034][  T246]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   12.736246][  T246]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   12.736389][  T246]  copy_net_ns (net/core/net_namespace.c:579)
[   12.736523][  T246]  create_new_namespaces (kernel/nsproxy.c:132)
[   12.736660][  T246]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   12.736794][  T246]  ksys_unshare (kernel/fork.c:3243)
[   12.736927][  T246]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.737062][  T246]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   12.737201][  T246]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   12.737340][  T246]  ? __ia32_sys_open (fs/open.c:1374)
[   12.737474][  T246]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   12.737606][  T246]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.737739][  T246]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.737872][  T246]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.738006][  T246]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.738139][  T246]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.738314][  T246] RIP: 0033:0x7fb60d738bcb
[   12.738453][  T246] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   12.738929][  T246] RSP: 002b:00007fffef0b85a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   12.739130][  T246] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fb60d738bcb
[   12.739339][  T246] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   12.739537][  T246] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   12.739734][  T246] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fffef0ba7d0
[   12.739934][  T246] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffef0bb865
| [   12.743997][  T246] ------------[ cut here ]------------
| [   12.744150][  T246] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/246
| [   12.744384][  T246] Modules linked in:
| [   12.744754][  T246] Tainted: [W]=WARN
[   12.744855][  T246] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.745024][  T246] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.745205][  T246] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.745684][  T246] RSP: 0018:ffa0000000af7a68 EFLAGS: 00010286
[   12.745850][  T246] RAX: 00000000ffffffa6 RBX: ff1100000be57e00 RCX: 1ff400000015ef13
[   12.746046][  T246] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000be57ebc
[   12.746249][  T246] RBP: ff11000009219000 R08: 1fe22000017cafd9 R09: ff1100000f778b80
[   12.746449][  T246] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   12.746647][  T246] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009219000
[   12.746849][  T246] FS:  00007fb60d476840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   12.747082][  T246] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.747254][  T246] CR2: 00007fb60d7ef493 CR3: 000000000e4cf001 CR4: 0000000000771ef0
[   12.747459][  T246] PKRU: 55555554
[   12.747559][  T246] Call Trace:
[   12.747659][  T246]  <TASK>
[   12.747728][  T246]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.747862][  T246]  ? notifier_call_chain (kernel/notifier.c:85)
[   12.747996][  T246]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.748099][  T246]  register_netdevice (net/core/dev.c:11488)
[   12.748240][  T246]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.748413][  T246]  register_netdev (net/core/dev.c:11552)
[   12.748546][  T246]  sit_init_net (net/ipv6/sit.c:1860)
[   12.748680][  T246]  ops_init (net/core/net_namespace.c:137)
[   12.748782][  T246]  setup_net (net/core/net_namespace.c:446)
[   12.748883][  T246]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   12.749015][  T246]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   12.749154][  T246]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   12.749289][  T246]  copy_net_ns (net/core/net_namespace.c:579)
[   12.749429][  T246]  create_new_namespaces (kernel/nsproxy.c:132)
[   12.749565][  T246]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   12.749698][  T246]  ksys_unshare (kernel/fork.c:3243)
[   12.749831][  T246]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.749963][  T246]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   12.750097][  T246]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   12.750236][  T246]  ? __ia32_sys_open (fs/open.c:1374)
[   12.750376][  T246]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   12.750508][  T246]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.750640][  T246]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.750773][  T246]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.750907][  T246]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.751039][  T246]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.751208][  T246] RIP: 0033:0x7fb60d738bcb
[   12.751350][  T246] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   12.751822][  T246] RSP: 002b:00007fffef0b85a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   12.752022][  T246] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fb60d738bcb
[   12.752224][  T246] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   12.752430][  T246] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   12.752627][  T246] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fffef0ba7d0
[   12.752827][  T246] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffef0bb865
| [   12.757452][  T246] ------------[ cut here ]------------
| [   12.757596][  T246] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/246
| [   12.757826][  T246] Modules linked in:
| [   12.758203][  T246] Tainted: [W]=WARN
[   12.758308][  T246] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.758474][  T246] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.758647][  T246] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.759118][  T246] RSP: 0018:ffa0000000af7a78 EFLAGS: 00010286
[   12.759288][  T246] RAX: 00000000ffffffa6 RBX: ff110000092b4900 RCX: 1ff400000015ef15
[   12.759492][  T246] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000092b49bc
[   12.759689][  T246] RBP: ff11000005149000 R08: 1fe2200001256939 R09: ff1100000f778b80
[   12.759889][  T246] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   12.760088][  T246] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000005149000
[   12.760292][  T246] FS:  00007fb60d476840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   12.760533][  T246] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.760700][  T246] CR2: 00007fb60d7ef493 CR3: 000000000e4cf001 CR4: 0000000000771ef0
[   12.760902][  T246] PKRU: 55555554
[   12.761004][  T246] Call Trace:
[   12.761104][  T246]  <TASK>
[   12.761177][  T246]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.761316][  T246]  ? notifier_call_chain (kernel/notifier.c:85)
[   12.761449][  T246]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.761550][  T246]  register_netdevice (net/core/dev.c:11488)
[   12.761687][  T246]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.761853][  T246]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.761991][  T246]  register_netdev (net/core/dev.c:11552)
[   12.762123][  T246]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   12.762261][  T246]  ops_init (net/core/net_namespace.c:137)
[   12.762368][  T246]  setup_net (net/core/net_namespace.c:446)
[   12.762470][  T246]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   12.762603][  T246]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   12.762736][  T246]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   12.762871][  T246]  copy_net_ns (net/core/net_namespace.c:579)
[   12.763005][  T246]  create_new_namespaces (kernel/nsproxy.c:132)
[   12.763146][  T246]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   12.763281][  T246]  ksys_unshare (kernel/fork.c:3243)
[   12.763417][  T246]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.763551][  T246]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   12.763684][  T246]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   12.763817][  T246]  ? __ia32_sys_open (fs/open.c:1374)
[   12.763952][  T246]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   12.764087][  T246]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.764225][  T246]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.764362][  T246]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.764494][  T246]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.764629][  T246]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.764793][  T246] RIP: 0033:0x7fb60d738bcb
[   12.764932][  T246] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   12.765418][  T246] RSP: 002b:00007fffef0b85a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   12.765621][  T246] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fb60d738bcb
[   12.765822][  T246] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   12.766023][  T246] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   12.766227][  T246] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fffef0ba7d0
[   12.766431][  T246] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffef0bb865
| [   12.795233][  T247] ------------[ cut here ]------------
| [   12.795431][  T247] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/247
| [   12.795711][  T247] Modules linked in:
| [   12.796259][  T247] Tainted: [W]=WARN
[   12.796413][  T247] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.796625][  T247] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.796845][  T247] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.797382][  T247] RSP: 0018:ffa0000000b07020 EFLAGS: 00010286
[   12.797600][  T247] RAX: 00000000ffffffa6 RBX: ff1100000f203000 RCX: 1ff4000000160dca
[   12.797843][  T247] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000f2030bc
[   12.798089][  T247] RBP: ff1100000f2e9000 R08: 1fe2200001e40619 R09: ff1100000f6b0b58
[   12.798352][  T247] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[   12.798600][  T247] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   12.798846][  T247] FS:  00007f70d9dae840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   12.799121][  T247] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.799354][  T247] CR2: 0000000022155988 CR3: 000000000a796004 CR4: 0000000000771ef0
[   12.799601][  T247] PKRU: 55555554
[   12.799747][  T247] Call Trace:
[   12.799893][  T247]  <TASK>
[   12.800009][  T247]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.800204][  T247]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.800361][  T247]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   12.800540][  T247]  __dev_notify_flags (net/core/dev.c:9787)
[   12.800722][  T247]  ? netif_change_name (net/core/dev.c:1495)
[   12.800904][  T247]  ? __dev_change_flags (net/core/dev.c:9752)
[   12.801088][  T247]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   12.801280][  T247]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.801471][  T247]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   12.801655][  T247]  netif_change_flags (net/core/dev.c:9820)
[   12.801837][  T247]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   12.802023][  T247]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   12.802220][  T247]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   12.802407][  T247]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   12.802619][  T247]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.802798][  T247]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   12.802977][  T247]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   12.803169][  T247]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   12.803361][  T247]  ? __kernel_text_address (kernel/extable.c:79)
[   12.803540][  T247]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.803722][  T247]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.803901][  T247]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   12.804083][  T247]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.804274][  T247]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.804460][  T247]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.804642][  T247]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.804821][  T247]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   12.805002][  T247]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   12.805193][  T247]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   12.805379][  T247]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   12.805561][  T247]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   12.805743][  T247]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   12.805926][  T247]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   12.806109][  T247]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.806304][  T247]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   12.806484][  T247]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   12.806662][  T247]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   12.806841][  T247]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.807023][  T247]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.807213][  T247]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   12.807414][  T247]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   12.807595][  T247]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.807775][  T247]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   12.807953][  T247]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   12.808133][  T247]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   12.808330][  T247]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.808509][  T247]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.808690][  T247]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.808870][  T247]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   12.809052][  T247]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   12.809244][  T247]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.809434][  T247]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.809617][  T247]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   12.809797][  T247]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   12.809978][  T247]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.810172][  T247]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.810362][  T247]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.810543][  T247]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   12.810724][  T247]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   12.810904][  T247]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   12.811086][  T247]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   12.811283][  T247]  ? copy_msghdr_from_user (net/socket.c:2635)
[   12.811471][  T247]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   12.811683][  T247]  ? move_addr_to_kernel (net/socket.c:258)
[   12.811865][  T247]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   12.812045][  T247]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   12.812241][  T247]  ___sys_sendmsg (net/socket.c:2752)
[   12.812431][  T247]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   12.812643][  T247]  ? copy_msghdr_from_user (net/socket.c:2603)
[   12.812833][  T247]  __sys_sendmsg (net/socket.c:2784)
[   12.813017][  T247]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   12.813208][  T247]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   12.813432][  T247]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   12.813612][  T247]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.813792][  T247]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.813972][  T247]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.814164][  T247]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.814351][  T247]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.814567][  T247] RIP: 0033:0x7f70d9fe808e
[   12.814751][  T247] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   12.815276][  T247] RSP: 002b:00007ffc77438330 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.815531][  T247] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f70d9fe808e
[   12.815774][  T247] RDX: 0000000000000000 RSI: 00007ffc774383e0 RDI: 0000000000000005
[   12.816016][  T247] RBP: 00007ffc77438340 R08: 0000000000000000 R09: 0000000000000000
[   12.816272][  T247] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ea17
[   12.816525][  T247] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc77438ab0
| [   12.922782][  T250] ------------[ cut here ]------------
| [   12.922966][  T250] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/250
| [   12.923222][  T250] Modules linked in:
| [   12.923620][  T250] Tainted: [W]=WARN
[   12.923728][  T250] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.923902][  T250] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.924088][  T250] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.924596][  T250] RSP: 0018:ffa0000000b36e30 EFLAGS: 00010286
[   12.924776][  T250] RAX: 00000000ffffffa6 RBX: ff1100000be57380 RCX: 1ff4000000166d8c
[   12.924988][  T250] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000be5743c
[   12.925204][  T250] RBP: ff1100000e441000 R08: 1fe22000017cae89 R09: ff1100000fe98b80
[   12.925420][  T250] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   12.925629][  T250] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000b8a4b04
[   12.925840][  T250] FS:  00007fd9dfa47840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   12.926083][  T250] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.926266][  T250] CR2: 00000000004eb188 CR3: 000000000f62b001 CR4: 0000000000771ef0
[   12.926482][  T250] PKRU: 55555554
[   12.926589][  T250] Call Trace:
[   12.926694][  T250]  <TASK>
[   12.926766][  T250]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.926906][  T250]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.927011][  T250]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[   12.927187][  T250]  __dev_notify_flags (net/core/dev.c:9787)
[   12.927334][  T250]  ? netif_change_name (net/core/dev.c:1495)
[   12.927472][  T250]  ? rtnl_newlink (net/core/rtnetlink.c:4150)
[   12.927611][  T250]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   12.927749][  T250]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   12.927888][  T250]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[   12.928028][  T250]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.928245][  T250]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   12.928391][  T250]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   12.928531][  T250]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.928673][  T250]  ? queue_delayed_work_on (kernel/workqueue.c:2616 (discriminator 6))
[   12.928814][  T250]  veth_newlink (drivers/net/veth.c:1871)
[   12.928954][  T250]  ? veth_poll_controller (drivers/net/veth.c:1470)
[   12.929093][  T250]  ? kasan_save_stack (mm/kasan/common.c:57)
[   12.929316][  T250]  ? kasan_save_track (mm/kasan/common.c:78)
[   12.929456][  T250]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   12.929611][  T250]  ? __kvmalloc_node_noprof (mm/slub.c:5296 mm/slub.c:6832)
[   12.929751][  T250]  ? alloc_netdev_mqs (net/core/dev.c:12129 (discriminator 7))
[   12.929891][  T250]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   12.930030][  T250]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   12.930231][  T250]  ? rtnl_create_link (net/core/rtnetlink.c:3720)
[   12.930435][  T250]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   12.930576][  T250]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   12.930716][  T250]  ? __dev_get_by_name (net/core/dev.c:883)
[   12.930853][  T250]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   12.930997][  T250]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   12.931303][  T250]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   12.931446][  T250]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.931584][  T250]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   12.931722][  T250]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   12.931860][  T250]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   12.931999][  T250]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.932146][  T250]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.932286][  T250]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   12.932429][  T250]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   12.932567][  T250]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   12.932707][  T250]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.932846][  T250]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.932989][  T250]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.933126][  T250]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   12.933274][  T250]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   12.933416][  T250]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.933558][  T250]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.933701][  T250]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   12.933841][  T250]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   12.933983][  T250]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.934127][  T250]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.934273][  T250]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.934420][  T250]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   12.934561][  T250]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   12.934702][  T250]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   12.934843][  T250]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   12.934981][  T250]  ? copy_msghdr_from_user (net/socket.c:2635)
[   12.935119][  T250]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   12.935294][  T250]  ? move_addr_to_kernel (net/socket.c:258)
[   12.935439][  T250]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.935577][  T250]  ? rcu_read_unlock (./include/linux/rcupdate.h:867 (discriminator 5))
[   12.935718][  T250]  ___sys_sendmsg (net/socket.c:2752)
[   12.935857][  T250]  ? wp_page_copy (./include/linux/pgtable.h:117 mm/memory.c:3976)
[   12.935997][  T250]  ? copy_msghdr_from_user (net/socket.c:2603)
[   12.936139][  T250]  ? do_wp_page (./include/linux/pgtable.h:117 mm/memory.c:4331)
[   12.936289][  T250]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   12.936434][  T250]  __sys_sendmsg (net/socket.c:2784)
[   12.936572][  T250]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   12.936714][  T250]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.936857][  T250]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.936997][  T250]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.937134][  T250]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.937278][  T250]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.937420][  T250]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.937591][  T250] RIP: 0033:0x7fd9dfc8108e
[   12.937735][  T250] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   12.938228][  T250] RSP: 002b:00007ffc257341d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.938443][  T250] RAX: ffffffffffffffda RBX: 00007ffc25734980 RCX: 00007fd9dfc8108e
[   12.938650][  T250] RDX: 0000000000000000 RSI: 00007ffc25734280 RDI: 0000000000000005
[   12.938859][  T250] RBP: 00007ffc257341e0 R08: 0000000000000000 R09: 0000000000000000
[   12.939066][  T250] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ea17
[   12.939279][  T250] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc25734958
| [   12.948197][  T250] ------------[ cut here ]------------
| [   12.948361][  T250] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/250
| [   12.948601][  T250] Modules linked in:
| [   12.949079][  T250] Tainted: [W]=WARN
[   12.949191][  T250] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.949369][  T250] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.949548][  T250] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.950034][  T250] RSP: 0018:ffa0000000b371b0 EFLAGS: 00010286
[   12.950335][  T250] RAX: 00000000ffffffa6 RBX: ff11000009067a80 RCX: 1ff4000000166dfc
[   12.950540][  T250] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009067b3c
[   12.950743][  T250] RBP: ff1100000f29c000 R08: 1fe220000120cf69 R09: ff1100000fe98b80
[   12.950949][  T250] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   12.951178][  T250] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffb6403b20
[   12.951391][  T250] FS:  00007fd9dfa47840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   12.951630][  T250] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.951803][  T250] CR2: 00000000004eb188 CR3: 000000000f62b001 CR4: 0000000000771ef0
[   12.952010][  T250] PKRU: 55555554
[   12.952118][  T250] Call Trace:
[   12.952224][  T250]  <TASK>
[   12.952328][  T250]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.952465][  T250]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.952570][  T250]  __dev_notify_flags (net/core/dev.c:9787)
[   12.952710][  T250]  ? netif_change_name (net/core/dev.c:1495)
[   12.952847][  T250]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   12.952984][  T250]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   12.953125][  T250]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   12.953269][  T250]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   12.953411][  T250]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   12.953549][  T250]  ? __dev_get_by_name (net/core/dev.c:883)
[   12.953685][  T250]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   12.953832][  T250]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   12.953976][  T250]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   12.954116][  T250]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.954257][  T250]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   12.954400][  T250]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   12.954536][  T250]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   12.954672][  T250]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.954814][  T250]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.954955][  T250]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   12.955094][  T250]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   12.955240][  T250]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   12.955381][  T250]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.955544][  T250]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.955683][  T250]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.955820][  T250]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   12.955957][  T250]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   12.956093][  T250]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.956236][  T250]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.956382][  T250]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   12.956520][  T250]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   12.956659][  T250]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.956796][  T250]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.956937][  T250]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.957076][  T250]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   12.957221][  T250]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   12.957365][  T250]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   12.957507][  T250]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   12.957644][  T250]  ? copy_msghdr_from_user (net/socket.c:2635)
[   12.957779][  T250]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   12.957946][  T250]  ? move_addr_to_kernel (net/socket.c:258)
[   12.958083][  T250]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.958224][  T250]  ? rcu_read_unlock (./include/linux/rcupdate.h:867 (discriminator 5))
[   12.958367][  T250]  ___sys_sendmsg (net/socket.c:2752)
[   12.958503][  T250]  ? wp_page_copy (./include/linux/pgtable.h:117 mm/memory.c:3976)
[   12.958641][  T250]  ? copy_msghdr_from_user (net/socket.c:2603)
[   12.958782][  T250]  ? do_wp_page (./include/linux/pgtable.h:117 mm/memory.c:4331)
[   12.958925][  T250]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   12.959064][  T250]  __sys_sendmsg (net/socket.c:2784)
[   12.959207][  T250]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   12.959353][  T250]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.959495][  T250]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.959634][  T250]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.959770][  T250]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.959907][  T250]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.960044][  T250]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.960221][  T250] RIP: 0033:0x7fd9dfc8108e
[   12.960368][  T250] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   12.960860][  T250] RSP: 002b:00007ffc257341d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.961069][  T250] RAX: ffffffffffffffda RBX: 00007ffc25734980 RCX: 00007fd9dfc8108e
[   12.961282][  T250] RDX: 0000000000000000 RSI: 00007ffc25734280 RDI: 0000000000000005
[   12.961493][  T250] RBP: 00007ffc257341e0 R08: 0000000000000000 R09: 0000000000000000
[   12.961697][  T250] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ea17
[   12.961900][  T250] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc25734958
| [   13.261964][  T259] ------------[ cut here ]------------
| [   13.262190][  T259] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/259
| [   13.262488][  T259] Modules linked in:
| [   13.262965][  T259] Tainted: [W]=WARN
[   13.263128][  T259] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.263362][  T259] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.263591][  T259] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.264118][  T259] RSP: 0018:ffa0000000bc7020 EFLAGS: 00010286
[   13.264362][  T259] RAX: 00000000ffffffa6 RBX: ff1100000d2b3700 RCX: 1ff4000000178dca
[   13.264618][  T259] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d2b37bc
[   13.264871][  T259] RBP: ff1100000f29c000 R08: 1fe2200001a566f9 R09: ff1100000f6b5158
[   13.265122][  T259] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[   13.265390][  T259] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   13.265644][  T259] FS:  00007fe34ffdd840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   13.265928][  T259] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.266159][  T259] CR2: 000000000a0c0988 CR3: 000000000e98f005 CR4: 0000000000771ef0
[   13.266416][  T259] PKRU: 55555554
[   13.266566][  T259] Call Trace:
[   13.266717][  T259]  <TASK>
[   13.266838][  T259]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.267029][  T259]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.267194][  T259]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   13.267389][  T259]  __dev_notify_flags (net/core/dev.c:9787)
[   13.267577][  T259]  ? netif_change_name (net/core/dev.c:1495)
[   13.267765][  T259]  ? __dev_change_flags (net/core/dev.c:9752)
[   13.267951][  T259]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   13.268134][  T259]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.268341][  T259]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   13.268527][  T259]  netif_change_flags (net/core/dev.c:9820)
[   13.268713][  T259]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   13.268899][  T259]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   13.269090][  T259]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   13.269288][  T259]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   13.269516][  T259]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.269700][  T259]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   13.269884][  T259]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   13.270068][  T259]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   13.270269][  T259]  ? __kernel_text_address (kernel/extable.c:79)
[   13.270463][  T259]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.270650][  T259]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.270833][  T259]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   13.271020][  T259]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.271218][  T259]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   13.271409][  T259]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.271593][  T259]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.271781][  T259]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   13.271967][  T259]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   13.272167][  T259]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   13.272361][  T259]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   13.272556][  T259]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   13.272748][  T259]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   13.272936][  T259]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   13.273124][  T259]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.273330][  T259]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.273515][  T259]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   13.273697][  T259]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   13.273879][  T259]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.274066][  T259]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.274260][  T259]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.274450][  T259]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   13.274637][  T259]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.274822][  T259]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   13.275006][  T259]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   13.275205][  T259]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   13.275397][  T259]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.275581][  T259]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.275767][  T259]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.275950][  T259]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.276138][  T259]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   13.276345][  T259]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.276530][  T259]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   13.276718][  T259]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   13.276902][  T259]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   13.277089][  T259]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   13.277289][  T259]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   13.277487][  T259]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.277673][  T259]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   13.277860][  T259]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   13.278045][  T259]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   13.278247][  T259]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   13.278440][  T259]  ? copy_msghdr_from_user (net/socket.c:2635)
[   13.278623][  T259]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   13.278839][  T259]  ? move_addr_to_kernel (net/socket.c:258)
[   13.279029][  T259]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   13.279227][  T259]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   13.279417][  T259]  ___sys_sendmsg (net/socket.c:2752)
[   13.279602][  T259]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   13.279821][  T259]  ? copy_msghdr_from_user (net/socket.c:2603)
[   13.280018][  T259]  __sys_sendmsg (net/socket.c:2784)
[   13.280217][  T259]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   13.280411][  T259]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   13.280630][  T259]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   13.280815][  T259]  ? fpregs_restore_userregs (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:41 ./include/linux/thread_info.h:109 arch/x86/kernel/fpu/context.h:79)
[   13.281000][  T259]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.281196][  T259]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.281390][  T259]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.281577][  T259]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.281768][  T259]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.281985][  T259] RIP: 0033:0x7fe35021708e
[   13.282190][  T259] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   13.282726][  T259] RSP: 002b:00007ffc3774d450 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   13.282983][  T259] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fe35021708e
[   13.283247][  T259] RDX: 0000000000000000 RSI: 00007ffc3774d500 RDI: 0000000000000005
[   13.283505][  T259] RBP: 00007ffc3774d460 R08: 0000000000000000 R09: 0000000000000000
[   13.283756][  T259] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ea17
[   13.284009][  T259] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc3774dbd8
| [   13.316444][  T261] ------------[ cut here ]------------
| [   13.316656][  T261] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/261
| [   13.316938][  T261] Modules linked in:
| [   13.317923][  T261] Tainted: [W]=WARN
[   13.318078][  T261] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.318315][  T261] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.318548][  T261] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.319065][  T261] RSP: 0018:ffa0000000bd7020 EFLAGS: 00010286
[   13.319291][  T261] RAX: 00000000ffffffa6 RBX: ff11000009752900 RCX: 1ff400000017adca
[   13.319547][  T261] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000097529bc
[   13.319791][  T261] RBP: ff1100000e441000 R08: 1fe22000012ea539 R09: ff110000101c8b58
[   13.320038][  T261] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[   13.320294][  T261] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   13.320550][  T261] FS:  00007f00a3e56840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   13.320836][  T261] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.321050][  T261] CR2: 000000001fd7d988 CR3: 000000000f325001 CR4: 0000000000771ef0
[   13.321318][  T261] PKRU: 55555554
[   13.321466][  T261] Call Trace:
[   13.321618][  T261]  <TASK>
[   13.321735][  T261]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.321919][  T261]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.322069][  T261]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   13.322260][  T261]  __dev_notify_flags (net/core/dev.c:9787)
[   13.322449][  T261]  ? netif_change_name (net/core/dev.c:1495)
[   13.322631][  T261]  ? __dev_change_flags (net/core/dev.c:9752)
[   13.322813][  T261]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   13.322996][  T261]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.323190][  T261]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   13.323380][  T261]  netif_change_flags (net/core/dev.c:9820)
[   13.323565][  T261]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   13.323747][  T261]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   13.323932][  T261]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   13.324117][  T261]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   13.324351][  T261]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.324534][  T261]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   13.324716][  T261]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   13.324898][  T261]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   13.325081][  T261]  ? __kernel_text_address (kernel/extable.c:79)
[   13.325276][  T261]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.325470][  T261]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.325651][  T261]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   13.325834][  T261]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.326016][  T261]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   13.326208][  T261]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.326397][  T261]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.326578][  T261]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   13.326761][  T261]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   13.326944][  T261]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   13.327127][  T261]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   13.327331][  T261]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   13.327519][  T261]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   13.327703][  T261]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   13.327889][  T261]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.328068][  T261]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.328260][  T261]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   13.328446][  T261]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   13.328628][  T261]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.328811][  T261]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.328991][  T261]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.329185][  T261]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   13.329377][  T261]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.329561][  T261]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   13.329746][  T261]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   13.329928][  T261]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   13.330110][  T261]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.330309][  T261]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.330493][  T261]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.330674][  T261]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.330857][  T261]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   13.331039][  T261]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.331239][  T261]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   13.331433][  T261]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   13.331618][  T261]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   13.331801][  T261]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   13.331983][  T261]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   13.332177][  T261]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.332368][  T261]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   13.332557][  T261]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   13.332740][  T261]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   13.332923][  T261]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   13.333106][  T261]  ? copy_msghdr_from_user (net/socket.c:2635)
[   13.333305][  T261]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   13.333518][  T261]  ? move_addr_to_kernel (net/socket.c:258)
[   13.333701][  T261]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   13.333885][  T261]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   13.334068][  T261]  ___sys_sendmsg (net/socket.c:2752)
[   13.334259][  T261]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   13.334480][  T261]  ? copy_msghdr_from_user (net/socket.c:2603)
[   13.334672][  T261]  __sys_sendmsg (net/socket.c:2784)
[   13.334854][  T261]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   13.335033][  T261]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   13.335261][  T261]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   13.335449][  T261]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.335631][  T261]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.335811][  T261]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.335991][  T261]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.336186][  T261]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.336406][  T261] RIP: 0033:0x7f00a409008e
[   13.336592][  T261] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   13.337110][  T261] RSP: 002b:00007fff5c3c2af0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   13.337376][  T261] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f00a409008e
[   13.337621][  T261] RDX: 0000000000000000 RSI: 00007fff5c3c2ba0 RDI: 0000000000000005
[   13.337869][  T261] RBP: 00007fff5c3c2b00 R08: 0000000000000000 R09: 0000000000000000
[   13.338114][  T261] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ea17
[   13.338378][  T261] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff5c3c3278
| [   13.341058][   T60] ------------[ cut here ]------------
| [   13.341246][   T60] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/60
| [   13.341542][   T60] Modules linked in:
| [   13.342069][   T60] Tainted: [W]=WARN
[   13.342224][   T60] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.342432][   T60] Workqueue: events_unbound linkwatch_event
[   13.342638][   T60] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.342854][   T60] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.343428][   T60] RSP: 0018:ffa000000040f9e0 EFLAGS: 00010286
[   13.343679][   T60] RAX: 00000000ffffffa6 RBX: ff110000026ea200 RCX: 1ff4000000081f02
[   13.343918][   T60] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000026ea2bc
[   13.344173][   T60] RBP: ff1100000f29c000 R08: 1fe22000004dd459 R09: ff110000052ad1a8
[   13.344420][   T60] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000000
[   13.344658][   T60] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   13.344912][   T60] FS:  0000000000000000(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   13.345196][   T60] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.345411][   T60] CR2: 000000001fd7d988 CR3: 000000003c54d003 CR4: 0000000000771ef0
[   13.345654][   T60] PKRU: 55555554
[   13.345800][   T60] Call Trace:
[   13.345946][   T60]  <TASK>
[   13.346061][   T60]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.346255][   T60]  ? notifier_call_chain (kernel/notifier.c:85)
[   13.346446][   T60]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.346595][   T60]  netif_state_change (net/core/dev.c:1605)
[   13.346775][   T60]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[   13.346988][   T60]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[   13.347180][   T60]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   13.347369][   T60]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   13.347554][   T60]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   13.347737][   T60]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   13.347917][   T60]  process_one_work (kernel/workqueue.c:3314)
[   13.348103][   T60]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   13.348293][   T60]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.348487][   T60]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   13.348669][   T60]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   13.348848][   T60]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   13.349030][   T60]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   13.349224][   T60]  kthread (kernel/kthread.c:436)
[   13.349378][   T60]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   13.349589][   T60]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.349768][   T60]  ret_from_fork (arch/x86/kernel/process.c:158)
[   13.349953][   T60]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   13.350178][   T60]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   13.350368][   T60]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.350549][   T60]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   14.283666][   T60] ------------[ cut here ]------------
| [   14.283926][   T60] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/60
| [   14.284231][   T60] Modules linked in:
| [   14.284699][   T60] Tainted: [W]=WARN
[   14.284836][   T60] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.285061][   T60] Workqueue: events_unbound linkwatch_event
[   14.285278][   T60] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.285489][   T60] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   14.285967][   T60] RSP: 0018:ffa000000040f9e0 EFLAGS: 00010286
[   14.286196][   T60] RAX: 00000000ffffffa6 RBX: ff110000026eb700 RCX: 1ff4000000081f02
[   14.286425][   T60] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000026eb7bc
[   14.286689][   T60] RBP: ff1100000e441000 R08: 1fe22000004dd6f9 R09: ff110000052ad1a8
[   14.286921][   T60] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000000
[   14.287158][   T60] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   14.287393][   T60] FS:  0000000000000000(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   14.287647][   T60] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.287846][   T60] CR2: 00007f90c13c4808 CR3: 000000003c54d003 CR4: 0000000000771ef0
[   14.288072][   T60] PKRU: 55555554
[   14.288220][   T60] Call Trace:
[   14.288374][   T60]  <TASK>
[   14.288484][   T60]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   14.288650][   T60]  ? notifier_call_chain (kernel/notifier.c:85)
[   14.288817][   T60]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   14.288957][   T60]  netif_state_change (net/core/dev.c:1605)
[   14.289124][   T60]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[   14.289342][   T60]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[   14.289545][   T60]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   14.289712][   T60]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   14.289880][   T60]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   14.290049][   T60]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   14.290224][   T60]  process_one_work (kernel/workqueue.c:3314)
[   14.290407][   T60]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   14.290575][   T60]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   14.290746][   T60]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   14.290913][   T60]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   14.291079][   T60]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   14.291265][   T60]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   14.291440][   T60]  kthread (kernel/kthread.c:436)
[   14.291577][   T60]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   14.291793][   T60]  ? kthread_affine_node (kernel/kthread.c:378)
[   14.291967][   T60]  ret_from_fork (arch/x86/kernel/process.c:158)
[   14.292135][   T60]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   14.292351][   T60]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   14.292517][   T60]  ? kthread_affine_node (kernel/kthread.c:378)
[   14.292704][   T60]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   15.474182][   T12] ------------[ cut here ]------------
| [   15.474356][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   15.474607][   T12] Modules linked in:
| [   15.474988][   T12] Tainted: [W]=WARN
[   15.475081][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.475241][   T12] Workqueue: netns cleanup_net
[   15.475379][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.475536][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.475974][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   15.476127][   T12] RAX: 00000000ffffffa6 RBX: ff1100000988d380 RCX: 1ff4000000018eed
[   15.476319][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000988d43c
[   15.476508][   T12] RBP: ff1100000a281000 R08: 1fe2200001311a89 R09: ff11000001aed1d0
[   15.476686][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   15.476869][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   15.477051][   T12] FS:  0000000000000000(0000) GS:ff110000b3c47000(0000) knlGS:0000000000000000
[   15.477272][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.477432][   T12] CR2: 00007fffae0e4518 CR3: 000000000e234005 CR4: 0000000000771ef0
[   15.477617][   T12] PKRU: 55555554
[   15.477708][   T12] Call Trace:
[   15.477800][   T12]  <TASK>
[   15.477866][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   15.478024][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   15.478179][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   15.478308][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   15.478433][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   15.478555][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   15.478677][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   15.478801][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   15.478924][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   15.479044][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.479177][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   15.479301][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   15.479425][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   15.479558][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.479682][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.479804][   T12]  process_one_work (kernel/workqueue.c:3314)
[   15.479936][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   15.480058][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.480197][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   15.480332][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   15.480454][   T12]  kthread (kernel/kthread.c:436)
[   15.480546][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   15.480697][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.480817][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   15.480940][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   15.481091][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   15.481221][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.481347][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   15.483599][   T12] ------------[ cut here ]------------
| [   15.483729][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   15.483970][   T12] Modules linked in:
| [   15.484355][   T12] Tainted: [W]=WARN
[   15.484460][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.484614][   T12] Workqueue: netns cleanup_net
[   15.484740][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.484901][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.485345][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   15.485498][   T12] RAX: 00000000ffffffa6 RBX: ff1100000988da80 RCX: 1ff4000000018eed
[   15.485678][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000988db3c
[   15.485856][   T12] RBP: ff11000004f7c000 R08: 1fe2200001311b69 R09: ff11000001aed1d0
[   15.486037][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   15.486223][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   15.486407][   T12] FS:  0000000000000000(0000) GS:ff110000b3c47000(0000) knlGS:0000000000000000
[   15.486618][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.486770][   T12] CR2: 00007fffae0e4518 CR3: 000000000e234005 CR4: 0000000000771ef0
[   15.486955][   T12] PKRU: 55555554
[   15.487043][   T12] Call Trace:
[   15.487133][   T12]  <TASK>
[   15.487200][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   15.487358][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   15.487508][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   15.487704][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   15.487827][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   15.487946][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   15.488072][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   15.488198][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   15.488323][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   15.488441][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.488573][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   15.488695][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   15.488823][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   15.488945][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.489063][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.489196][   T12]  process_one_work (kernel/workqueue.c:3314)
[   15.489323][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   15.489514][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.489638][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   15.489767][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   15.489890][   T12]  kthread (kernel/kthread.c:436)
[   15.489979][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   15.490128][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.490327][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   15.490449][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   15.490598][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   15.490720][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.490839][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   15.493523][   T12] ------------[ cut here ]------------
| [   15.493718][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   15.494020][   T12] Modules linked in:
| [   15.494530][   T12] Tainted: [W]=WARN
[   15.494621][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.494772][   T12] Workqueue: netns cleanup_net
[   15.494896][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.495053][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.495565][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   15.495716][   T12] RAX: 00000000ffffffa6 RBX: ff1100000d2b23c0 RCX: 1ff4000000018eed
[   15.495965][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d2b247c
[   15.496147][   T12] RBP: ff11000005141000 R08: 1fe2200001a56491 R09: ff11000001aed1d0
[   15.496330][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   15.496581][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   15.496760][   T12] FS:  0000000000000000(0000) GS:ff110000b3c47000(0000) knlGS:0000000000000000
[   15.497039][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.497194][   T12] CR2: 00007fffae0e4518 CR3: 000000000e234005 CR4: 0000000000771ef0
[   15.497376][   T12] PKRU: 55555554
[   15.497465][   T12] Call Trace:
[   15.497624][   T12]  <TASK>
[   15.497687][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   15.497841][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   15.497995][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   15.498201][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   15.498326][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   15.498444][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   15.498569][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   15.498762][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   15.498883][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   15.499011][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.499152][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   15.499350][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   15.499471][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   15.499593][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.499714][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.499906][   T12]  process_one_work (kernel/workqueue.c:3314)
[   15.500032][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   15.500155][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.500281][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   15.500481][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   15.500600][   T12]  kthread (kernel/kthread.c:436)
[   15.500694][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   15.500844][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.501039][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   15.501164][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   15.501318][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   15.501437][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.501628][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   15.503814][   T12] ------------[ cut here ]------------
| [   15.503934][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   15.504579][   T12] Modules linked in:
| [   15.504944][   T12] Tainted: [W]=WARN
[   15.505035][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.505229][   T12] Workqueue: netns cleanup_net
[   15.505360][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.505518][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.505946][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   15.506096][   T12] RAX: 00000000ffffffa6 RBX: ff1100000d2b3540 RCX: 1ff4000000018eed
[   15.506325][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d2b35fc
[   15.506503][   T12] RBP: ff11000008b71000 R08: 1fe2200001a566c1 R09: ff11000001aed1d0
[   15.506681][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   15.506859][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   15.507039][   T12] FS:  0000000000000000(0000) GS:ff110000b3c47000(0000) knlGS:0000000000000000
[   15.507296][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.507458][   T12] CR2: 00007fffae0e4518 CR3: 000000000e234005 CR4: 0000000000771ef0
[   15.507638][   T12] PKRU: 55555554
[   15.507728][   T12] Call Trace:
[   15.507816][   T12]  <TASK>
[   15.507879][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   15.508032][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   15.508225][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   15.508350][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   15.508481][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   15.508601][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   15.508722][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   15.508842][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   15.508966][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   15.509087][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.509257][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   15.509383][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   15.509501][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   15.509623][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.509741][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.509862][   T12]  process_one_work (kernel/workqueue.c:3314)
[   15.509986][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   15.510107][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.510277][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   15.510404][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   15.510523][   T12]  kthread (kernel/kthread.c:436)
[   15.510613][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   15.510833][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.510958][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   15.511078][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   15.511350][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   15.511469][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.511587][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   15.513863][   T12] ------------[ cut here ]------------
| [   15.513994][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   15.514240][   T12] Modules linked in:
| [   15.514605][   T12] Tainted: [W]=WARN
[   15.514699][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.514846][   T12] Workqueue: netns cleanup_net
[   15.514970][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.515131][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.515569][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   15.515724][   T12] RAX: 00000000ffffffa6 RBX: ff1100000d1a3380 RCX: 1ff4000000018eed
[   15.515902][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d1a343c
[   15.516088][   T12] RBP: ff1100000a541000 R08: 1fe2200001a34689 R09: ff11000001aed1d0
[   15.516274][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   15.516459][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   15.516637][   T12] FS:  0000000000000000(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   15.516847][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.517002][   T12] CR2: 000055caeb73c880 CR3: 000000003c54d003 CR4: 0000000000771ef0
[   15.517185][   T12] PKRU: 55555554
[   15.517274][   T12] Call Trace:
[   15.517367][   T12]  <TASK>
[   15.517430][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   15.517583][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   15.517737][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   15.517941][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   15.518078][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   15.518282][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   15.518407][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   15.518528][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   15.518649][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   15.518768][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.518890][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   15.519011][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   15.519129][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   15.519298][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.519419][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.519539][   T12]  process_one_work (kernel/workqueue.c:3314)
[   15.519661][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   15.519779][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.519948][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   15.520070][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   15.520236][   T12]  kthread (kernel/kthread.c:436)
[   15.520329][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   15.520476][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.520594][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   15.520715][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   15.520863][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   15.520981][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.521101][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   15.536469][   T12] ------------[ cut here ]------------
| [   15.536615][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   15.536872][   T12] Modules linked in:
| [   15.537267][   T12] Tainted: [W]=WARN
[   15.537368][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.537526][   T12] Workqueue: netns cleanup_net
[   15.537658][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.537822][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.538284][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   15.538454][   T12] RAX: 00000000ffffffa6 RBX: ff1100000d1a2900 RCX: 1ff4000000018eaf
[   15.538639][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d1a29bc
[   15.538825][   T12] RBP: ff1100000e441000 R08: 1fe2200001a34539 R09: ff11000001aed1d0
[   15.539012][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[   15.539204][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f29c000
[   15.539398][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   15.539618][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.539775][   T12] CR2: 000055cac4457d5c CR3: 000000000a2c9001 CR4: 0000000000771ef0
[   15.539962][   T12] PKRU: 55555554
[   15.540055][   T12] Call Trace:
[   15.540154][   T12]  <TASK>
[   15.540221][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.540351][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.540448][   T12]  netif_close_many (net/core/dev.c:1804)
[   15.540573][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.540697][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.540827][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.540953][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   15.541079][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   15.541244][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   15.541407][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   15.541535][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   15.541691][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   15.541817][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   15.541941][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   15.542096][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   15.542233][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   15.542364][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   15.542491][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   15.542617][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   15.542743][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   15.542870][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   15.542994][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.543122][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   15.543254][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   15.543383][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   15.543508][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.543633][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.543760][   T12]  process_one_work (kernel/workqueue.c:3314)
[   15.543890][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   15.544014][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.544150][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   15.544280][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   15.544409][   T12]  kthread (kernel/kthread.c:436)
[   15.544504][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   15.544659][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.544784][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   15.544911][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   15.545068][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   15.545201][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.545331][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   15.547612][   T12] ------------[ cut here ]------------
| [   15.547740][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   15.547987][   T12] Modules linked in:
| [   15.548378][   T12] Tainted: [W]=WARN
[   15.548474][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.548636][   T12] Workqueue: netns cleanup_net
[   15.548765][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.548927][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.549384][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   15.549541][   T12] RAX: 00000000ffffffa6 RBX: ff1100000b832200 RCX: 1ff4000000018eaf
[   15.549728][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b8322bc
[   15.549914][   T12] RBP: ff1100000f29c000 R08: 1fe2200001706459 R09: ff11000001aed1d0
[   15.550101][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[   15.550295][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008f11000
[   15.550487][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   15.550705][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.550862][   T12] CR2: 000055cac4457d5c CR3: 000000000a2c9001 CR4: 0000000000771ef0
[   15.551050][   T12] PKRU: 55555554
[   15.551149][   T12] Call Trace:
[   15.551245][   T12]  <TASK>
[   15.551313][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.551438][   T12]  ? notifier_call_chain (kernel/notifier.c:85)
[   15.551563][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.551659][   T12]  netif_close_many (net/core/dev.c:1804)
[   15.551784][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.551908][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.552033][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.552164][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   15.552290][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   15.552450][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   15.552606][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   15.552731][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   15.552885][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   15.553009][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   15.553135][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   15.553298][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   15.553430][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   15.553556][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   15.553681][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   15.553807][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   15.553934][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   15.554064][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   15.554194][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.554326][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   15.554452][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   15.554577][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   15.554705][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.554829][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.554956][   T12]  process_one_work (kernel/workqueue.c:3314)
[   15.555086][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   15.555216][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.555350][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   15.555480][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   15.555605][   T12]  kthread (kernel/kthread.c:436)
[   15.555700][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   15.555857][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.555985][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   15.556111][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   15.556273][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   15.556401][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.556527][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   15.558896][   T12] ------------[ cut here ]------------
| [   15.559026][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   15.559283][   T12] Modules linked in:
| [   15.559669][   T12] Tainted: [W]=WARN
[   15.559765][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.559923][   T12] Workqueue: netns cleanup_net
[   15.560054][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.560225][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.560681][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   15.560840][   T12] RAX: 00000000ffffffa6 RBX: ff1100000b833c40 RCX: 1ff4000000018eaf
[   15.561027][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b833cfc
[   15.561221][   T12] RBP: ff11000008f11000 R08: 1fe22000017067a1 R09: ff11000001aed1d0
[   15.561414][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[   15.561601][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000000c77e0
[   15.561790][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   15.562012][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.562178][   T12] CR2: 000055cac4457d5c CR3: 000000000a2c9001 CR4: 0000000000771ef0
[   15.562373][   T12] PKRU: 55555554
[   15.562467][   T12] Call Trace:
[   15.562560][   T12]  <TASK>
[   15.562626][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.562754][   T12]  ? notifier_call_chain (kernel/notifier.c:85)
[   15.562881][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.562979][   T12]  netif_close_many (net/core/dev.c:1804)
[   15.563104][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.563239][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.563369][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.563494][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   15.563622][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   15.563780][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   15.563940][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   15.564067][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   15.564228][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   15.564358][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   15.564482][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   15.564639][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   15.564767][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   15.564895][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   15.565022][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   15.565154][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   15.565284][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   15.565415][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   15.565540][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.565668][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   15.565795][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   15.565922][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   15.566050][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.566179][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.566311][   T12]  process_one_work (kernel/workqueue.c:3314)
[   15.566441][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   15.566566][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.566697][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   15.566840][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   15.566967][   T12]  kthread (kernel/kthread.c:436)
[   15.567063][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   15.567231][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.567364][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   15.567491][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   15.567648][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   15.567777][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.567904][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   15.570016][   T12] ------------[ cut here ]------------
| [   15.570153][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   15.570399][   T12] Modules linked in:
| [   15.570766][   T12] Tainted: [W]=WARN
[   15.570858][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.571012][   T12] Workqueue: netns cleanup_net
[   15.571136][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.571885][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.572386][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   15.572540][   T12] RAX: 00000000ffffffa6 RBX: ff1100000d22e900 RCX: 1ff4000000018ed5
[   15.572720][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d22e9bc
[   15.572899][   T12] RBP: ff1100000e441000 R08: 1fe2200001a45d39 R09: ff11000001aed1d0
[   15.573078][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   15.573343][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   15.573525][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   15.573734][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.573885][   T12] CR2: 000055cac4457d5c CR3: 000000000a2c9001 CR4: 0000000000771ef0
[   15.574126][   T12] PKRU: 55555554
[   15.574263][   T12] Call Trace:
[   15.574359][   T12]  <TASK>
[   15.574424][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   15.574578][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   15.574732][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   15.574853][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   15.574975][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   15.575131][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   15.575308][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   15.575431][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   15.575552][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   15.575681][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   15.575804][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   15.575924][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.576048][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   15.576220][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   15.576344][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   15.576468][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.576588][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.576711][   T12]  process_one_work (kernel/workqueue.c:3314)
[   15.576835][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   15.576956][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.577080][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   15.577253][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   15.577377][   T12]  kthread (kernel/kthread.c:436)
[   15.577467][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   15.577619][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.577742][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   15.577865][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   15.578017][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   15.578190][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.578316][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   15.581620][   T12] ------------[ cut here ]------------
| [   15.581765][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   15.582004][   T12] Modules linked in:
| [   15.582512][   T12] Tainted: [W]=WARN
[   15.582619][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.582774][   T12] Workqueue: netns cleanup_net
[   15.582902][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.583060][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.583533][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   15.583686][   T12] RAX: 00000000ffffffa6 RBX: ff1100000d22f000 RCX: 1ff4000000018ed5
[   15.583871][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d22f0bc
[   15.584057][   T12] RBP: ff1100000f29c000 R08: 1fe2200001a45e19 R09: ff11000001aed1d0
[   15.584244][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   15.584432][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   15.584614][   T12] FS:  0000000000000000(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   15.584825][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.584980][   T12] CR2: 000055caeb73c880 CR3: 000000003c54d003 CR4: 0000000000771ef0
[   15.585171][   T12] PKRU: 55555554
[   15.585262][   T12] Call Trace:
[   15.585358][   T12]  <TASK>
[   15.585421][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   15.585577][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   15.585727][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   15.585847][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   15.585967][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   15.586123][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   15.586253][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   15.586377][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   15.586498][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   15.586619][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   15.586742][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   15.586861][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.586983][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   15.587105][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   15.587233][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   15.587360][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.587479][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.587601][   T12]  process_one_work (kernel/workqueue.c:3314)
[   15.587725][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   15.587855][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.587990][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   15.588116][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   15.588242][   T12]  kthread (kernel/kthread.c:436)
[   15.588339][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   15.588489][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.588613][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   15.588736][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   15.588890][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   15.589012][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.589150][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   15.600755][   T12] ------------[ cut here ]------------
| [   15.600898][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   15.601147][   T12] Modules linked in:
| [   15.601530][   T12] Tainted: [W]=WARN
[   15.601622][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.601773][   T12] Workqueue: netns cleanup_net
[   15.601900][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.602059][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.602563][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   15.602719][   T12] RAX: 00000000ffffffa6 RBX: ff1100000d22fc40 RCX: 1ff4000000018ed5
[   15.602900][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d22fcfc
[   15.603084][   T12] RBP: ff11000008f11000 R08: 1fe2200001a45fa1 R09: ff11000001aed1d0
[   15.603317][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   15.603497][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   15.603678][   T12] FS:  0000000000000000(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   15.603893][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.604044][   T12] CR2: 000055caeb73c880 CR3: 000000003c54d003 CR4: 0000000000771ef0
[   15.604277][   T12] PKRU: 55555554
[   15.604370][   T12] Call Trace:
[   15.604460][   T12]  <TASK>
[   15.604523][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   15.604721][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   15.604873][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   15.604995][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   15.605115][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   15.605275][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   15.605401][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   15.605522][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   15.605644][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   15.605768][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   15.605890][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   15.606010][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.606133][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   15.606260][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   15.606384][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   15.606506][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.606627][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.606750][   T12]  process_one_work (kernel/workqueue.c:3314)
[   15.606875][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   15.606994][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.607124][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   15.607255][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   15.607378][   T12]  kthread (kernel/kthread.c:436)
[   15.607470][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   15.607621][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.607743][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   15.607863][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   15.608028][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   15.608154][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.608276][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   15.641283][   T12] ------------[ cut here ]------------
| [   15.641475][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   15.641764][   T12] Modules linked in:
| [   15.642283][   T12] Tainted: [W]=WARN
[   15.642430][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.642626][   T12] Workqueue: netns cleanup_net
[   15.642799][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.643006][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.643508][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   15.643705][   T12] RAX: 00000000ffffffa6 RBX: ff1100000d03e040 RCX: 1ff4000000018eed
[   15.643930][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d03e0fc
[   15.644168][   T12] RBP: ff11000005149000 R08: 1fe2200001a07c21 R09: ff11000001aed1d0
[   15.644406][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   15.644631][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   15.644860][   T12] FS:  0000000000000000(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   15.645118][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.645341][   T12] CR2: 00007f94866d6b70 CR3: 000000003c54d006 CR4: 0000000000771ef0
[   15.645573][   T12] PKRU: 55555554
[   15.645723][   T12] Call Trace:
[   15.645863][   T12]  <TASK>
[   15.645972][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   15.646184][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   15.646384][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   15.646555][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   15.646727][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   15.646892][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   15.647060][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   15.647239][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   15.647412][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   15.647578][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.647747][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   15.647931][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   15.648102][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   15.648283][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.648461][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.648630][   T12]  process_one_work (kernel/workqueue.c:3314)
[   15.648809][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   15.648985][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.649173][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   15.649354][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   15.649523][   T12]  kthread (kernel/kthread.c:436)
[   15.649663][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   15.649863][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.650032][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   15.650215][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   15.650425][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   15.650594][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.650764][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   15.653434][   T12] ------------[ cut here ]------------
| [   15.653600][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   15.653884][   T12] Modules linked in:
| [   15.654362][   T12] Tainted: [W]=WARN
[   15.654500][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.654695][   T12] Workqueue: netns cleanup_net
[   15.654868][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.655071][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.655562][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   15.655762][   T12] RAX: 00000000ffffffa6 RBX: ff1100000d03e740 RCX: 1ff4000000018eed
[   15.655985][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d03e7fc
[   15.656220][   T12] RBP: ff11000009219000 R08: 1fe2200001a07d01 R09: ff11000001aed1d0
[   15.656455][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   15.656679][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   15.656904][   T12] FS:  0000000000000000(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   15.657172][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.657376][   T12] CR2: 00007f94866d6b70 CR3: 000000003c54d006 CR4: 0000000000771ef0
[   15.657602][   T12] PKRU: 55555554
[   15.657752][   T12] Call Trace:
[   15.657888][   T12]  <TASK>
[   15.657998][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   15.658213][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   15.658418][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   15.658587][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   15.658759][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   15.658926][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   15.659093][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   15.659276][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   15.659453][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   15.659619][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.659789][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   15.659961][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   15.660128][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   15.660317][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.660485][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.660655][   T12]  process_one_work (kernel/workqueue.c:3314)
[   15.660858][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   15.661027][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.661212][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   15.661389][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   15.661592][   T12]  kthread (kernel/kthread.c:436)
[   15.661731][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   15.661928][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.662099][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   15.662280][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   15.662530][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   15.662700][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.662870][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   15.665479][   T12] ------------[ cut here ]------------
| [   15.665644][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   15.665922][   T12] Modules linked in:
| [   15.666407][   T12] Tainted: [W]=WARN
[   15.666545][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.666742][   T12] Workqueue: netns cleanup_net
[   15.666917][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.667121][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.667615][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   15.667813][   T12] RAX: 00000000ffffffa6 RBX: ff1100000d03ee40 RCX: 1ff4000000018eed
[   15.668038][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d03eefc
[   15.668275][   T12] RBP: ff11000009d3c000 R08: 1fe2200001a07de1 R09: ff11000001aed1d0
[   15.668507][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   15.668731][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   15.668961][   T12] FS:  0000000000000000(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   15.669231][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.669440][   T12] CR2: 00007f94866d6b70 CR3: 000000003c54d006 CR4: 0000000000771ef0
[   15.669668][   T12] PKRU: 55555554
[   15.669805][   T12] Call Trace:
[   15.669941][   T12]  <TASK>
[   15.670050][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   15.670264][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   15.670468][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   15.670641][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   15.670811][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   15.670976][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   15.671158][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   15.671334][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   15.671505][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   15.671672][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.671874][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   15.672046][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   15.672221][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   15.672402][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.672569][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.672811][   T12]  process_one_work (kernel/workqueue.c:3314)
[   15.672983][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   15.673164][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.673420][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   15.673596][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   15.673763][   T12]  kthread (kernel/kthread.c:436)
[   15.673902][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   15.674185][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.674371][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   15.674545][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   15.674746][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   15.674917][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.675086][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   15.677904][   T12] ------------[ cut here ]------------
| [   15.678069][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   15.678438][   T12] Modules linked in:
| [   15.678968][   T12] Tainted: [W]=WARN
[   15.679108][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.679318][   T12] Workqueue: netns cleanup_net
[   15.679490][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.679695][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.680253][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   15.680535][   T12] RAX: 00000000ffffffa6 RBX: ff1100000d03f1c0 RCX: 1ff4000000018eed
[   15.680762][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d03f27c
[   15.680984][   T12] RBP: ff1100000e8d4000 R08: 1fe2200001a07e51 R09: ff11000001aed1d0
[   15.681222][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   15.681455][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   15.681824][   T12] FS:  0000000000000000(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   15.682077][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.682281][   T12] CR2: 00007f94866d6b70 CR3: 000000003c54d006 CR4: 0000000000771ef0
[   15.682552][   T12] PKRU: 55555554
[   15.682718][   T12] Call Trace:
[   15.682926][   T12]  <TASK>
[   15.683035][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   15.683261][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   15.683468][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   15.683666][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   15.683908][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   15.684074][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   15.684251][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   15.684431][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   15.684673][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   15.684910][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.685078][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   15.685260][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   15.685439][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   15.685607][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.685775][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.685945][   T12]  process_one_work (kernel/workqueue.c:3314)
[   15.686200][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   15.686447][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.686626][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   15.686798][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   15.687038][   T12]  kthread (kernel/kthread.c:436)
[   15.687189][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   15.687401][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.687570][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   15.687840][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   15.688110][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   15.688290][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.688468][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   15.691352][   T12] ------------[ cut here ]------------
| [   15.691516][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   15.691796][   T12] Modules linked in:
| [   15.692733][   T12] Tainted: [W]=WARN
[   15.692871][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.693075][   T12] Workqueue: netns cleanup_net
[   15.693258][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.693546][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.694022][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   15.694232][   T12] RAX: 00000000ffffffa6 RBX: ff1100000d03f540 RCX: 1ff4000000018eed
[   15.694466][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d03f5fc
[   15.694692][   T12] RBP: ff1100000f074000 R08: 1fe2200001a07ec1 R09: ff11000001aed1d0
[   15.694917][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   15.695155][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   15.695456][   T12] FS:  0000000000000000(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   15.695713][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.695912][   T12] CR2: 00007f94866d6b70 CR3: 000000003c54d006 CR4: 0000000000771ef0
[   15.696223][   T12] PKRU: 55555554
[   15.696366][   T12] Call Trace:
[   15.696504][   T12]  <TASK>
[   15.696611][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   15.696883][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   15.697077][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   15.697256][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   15.697445][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   15.697686][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   15.697853][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   15.698021][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   15.698203][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   15.698447][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.698621][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   15.698792][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   15.698962][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   15.699218][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.699398][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.699572][   T12]  process_one_work (kernel/workqueue.c:3314)
[   15.699744][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   15.699983][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.700169][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   15.700351][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   15.700523][   T12]  kthread (kernel/kthread.c:436)
[   15.700732][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   15.700931][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.701101][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   15.701287][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   15.701571][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   15.701744][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.701912][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   15.718122][  T277] ------------[ cut here ]------------
| [   15.718294][  T277] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/277
| [   15.718535][  T277] Modules linked in:
| [   15.718908][  T277] Tainted: [W]=WARN
[   15.719010][  T277] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.719183][  T277] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.719400][  T277] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.719884][  T277] RSP: 0018:ffa0000000c57a80 EFLAGS: 00010286
[   15.720055][  T277] RAX: 00000000ffffffa6 RBX: ff110000021fe200 RCX: 1ff400000018af16
[   15.720259][  T277] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000021fe2bc
[   15.720462][  T277] RBP: ff1100000eb14000 R08: 1fe220000043fc59 R09: ff110000102a8b80
[   15.720661][  T277] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   15.720865][  T277] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000eb14000
[   15.721066][  T277] FS:  00007fe559ed1840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   15.721314][  T277] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.721483][  T277] CR2: 000055cac4457d5c CR3: 00000000121b6002 CR4: 0000000000771ef0
[   15.721685][  T277] PKRU: 55555554
[   15.721785][  T277] Call Trace:
[   15.721885][  T277]  <TASK>
[   15.721954][  T277]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.722091][  T277]  ? notifier_call_chain (kernel/notifier.c:85)
[   15.722234][  T277]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.722341][  T277]  register_netdevice (net/core/dev.c:11488)
[   15.722478][  T277]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   15.722649][  T277]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   15.722788][  T277]  register_netdev (net/core/dev.c:11552)
[   15.722923][  T277]  loopback_net_init (drivers/net/loopback.c:218)
[   15.723059][  T277]  ops_init (net/core/net_namespace.c:137)
[   15.723172][  T277]  setup_net (net/core/net_namespace.c:446)
[   15.723277][  T277]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   15.723417][  T277]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   15.723553][  T277]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   15.723691][  T277]  copy_net_ns (net/core/net_namespace.c:579)
[   15.723828][  T277]  create_new_namespaces (kernel/nsproxy.c:132)
[   15.723966][  T277]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   15.724102][  T277]  ksys_unshare (kernel/fork.c:3243)
[   15.724245][  T277]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   15.724387][  T277]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   15.724523][  T277]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   15.724660][  T277]  ? __ia32_sys_open (fs/open.c:1374)
[   15.724799][  T277]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   15.724935][  T277]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   15.725072][  T277]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.725218][  T277]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.725363][  T277]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.725498][  T277]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.725669][  T277] RIP: 0033:0x7fe55a193bcb
[   15.725817][  T277] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   15.726313][  T277] RSP: 002b:00007ffd4b563568 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   15.726517][  T277] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fe55a193bcb
[   15.726721][  T277] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   15.726928][  T277] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   15.727132][  T277] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd4b565790
[   15.727347][  T277] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd4b567867
| [   15.731597][  T277] ------------[ cut here ]------------
| [   15.731744][  T277] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/277
| [   15.731977][  T277] Modules linked in:
| [   15.732365][  T277] Tainted: [W]=WARN
[   15.732467][  T277] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.732634][  T277] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.732807][  T277] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.733289][  T277] RSP: 0018:ffa0000000c57918 EFLAGS: 00010286
[   15.733464][  T277] RAX: 00000000ffffffa6 RBX: ff11000009cc2c80 RCX: 1ff400000018aee9
[   15.733685][  T277] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009cc2d3c
[   15.733886][  T277] RBP: ff1100000e12c000 R08: 1fe22000013985a9 R09: ff110000102a8b80
[   15.734088][  T277] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   15.734293][  T277] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e12c000
[   15.734503][  T277] FS:  00007fe559ed1840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   15.734742][  T277] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.734913][  T277] CR2: 000055cac4457d5c CR3: 00000000121b6002 CR4: 0000000000771ef0
[   15.735115][  T277] PKRU: 55555554
[   15.735220][  T277] Call Trace:
[   15.735323][  T277]  <TASK>
[   15.735392][  T277]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.735526][  T277]  ? notifier_call_chain (kernel/notifier.c:85)
[   15.735660][  T277]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.735763][  T277]  register_netdevice (net/core/dev.c:11488)
[   15.735900][  T277]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   15.736066][  T277]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   15.736207][  T277]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   15.736345][  T277]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   15.736480][  T277]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   15.736614][  T277]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   15.736749][  T277]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   15.736888][  T277]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   15.737026][  T277]  ops_init (net/core/net_namespace.c:137)
[   15.737129][  T277]  setup_net (net/core/net_namespace.c:446)
[   15.737237][  T277]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   15.737375][  T277]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   15.737509][  T277]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   15.737645][  T277]  copy_net_ns (net/core/net_namespace.c:579)
[   15.737783][  T277]  create_new_namespaces (kernel/nsproxy.c:132)
[   15.737920][  T277]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   15.738054][  T277]  ksys_unshare (kernel/fork.c:3243)
[   15.738193][  T277]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   15.738332][  T277]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   15.738465][  T277]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   15.738600][  T277]  ? __ia32_sys_open (fs/open.c:1374)
[   15.738737][  T277]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   15.738870][  T277]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   15.739003][  T277]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.739136][  T277]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.739276][  T277]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.739415][  T277]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.739581][  T277] RIP: 0033:0x7fe55a193bcb
[   15.739720][  T277] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   15.740204][  T277] RSP: 002b:00007ffd4b563568 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   15.740413][  T277] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fe55a193bcb
[   15.740614][  T277] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   15.740816][  T277] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   15.741017][  T277] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd4b565790
[   15.741223][  T277] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd4b567867
| [   15.742829][   T12] ------------[ cut here ]------------
| [   15.743002][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   15.743322][   T12] Modules linked in:
| [   15.743806][   T12] Tainted: [W]=WARN
[   15.743949][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.744167][   T12] Workqueue: netns cleanup_net
[   15.744352][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.744563][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.745055][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   15.745275][   T12] RAX: 00000000ffffffa6 RBX: ff11000009cc3c40 RCX: 1ff4000000018eaf
[   15.745511][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009cc3cfc
[   15.745749][   T12] RBP: ff1100000f2e9000 R08: 1fe22000013987a1 R09: ff11000001aed1d0
[   15.745985][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000041
[   15.746235][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000000c77e0
[   15.746477][   T12] FS:  0000000000000000(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   15.746746][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.746954][   T12] CR2: 00007f94866d6b70 CR3: 000000003c54d006 CR4: 0000000000771ef0
[   15.747205][   T12] PKRU: 55555554
[   15.747351][   T12] Call Trace:
[   15.747494][   T12]  <TASK>
[   15.747608][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.747784][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.747930][   T12]  netif_close_many (net/core/dev.c:1804)
[   15.748107][   T12]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   15.748292][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   15.748476][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   15.748683][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   15.748894][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   15.749069][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   15.749257][   T12]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   15.749442][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   15.749651][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   15.749829][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   15.750005][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   15.750194][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   15.750376][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   15.750553][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   15.750765][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   15.750938][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.751117][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   15.751321][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   15.751496][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   15.751672][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.751848][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.752025][   T12]  process_one_work (kernel/workqueue.c:3314)
[   15.752221][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   15.752401][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.752580][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   15.752759][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   15.752933][   T12]  kthread (kernel/kthread.c:436)
[   15.753077][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   15.753294][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.753481][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   15.753655][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   15.753860][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   15.754033][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.754222][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   15.756823][   T12] ------------[ cut here ]------------
| [   15.756995][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   15.757737][   T12] Modules linked in:
| [   15.758716][   T12] Tainted: [W]=WARN
[   15.758902][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.759100][   T12] Workqueue: netns cleanup_net
[   15.759286][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.759500][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.759979][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   15.760192][   T12] RAX: 00000000ffffffa6 RBX: ff1100000bfd8e40 RCX: 1ff4000000018ed5
[   15.760428][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bfd8efc
[   15.760655][   T12] RBP: ff1100000f2e9000 R08: 1fe22000017fb1e1 R09: ff11000001aed1d0
[   15.760886][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   15.761116][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   15.761362][   T12] FS:  0000000000000000(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   15.761623][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.761824][   T12] CR2: 00007f94866d6b70 CR3: 000000003c54d006 CR4: 0000000000771ef0
[   15.762055][   T12] PKRU: 55555554
[   15.762205][   T12] Call Trace:
[   15.762351][   T12]  <TASK>
[   15.762461][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   15.762663][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   15.762864][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   15.763039][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   15.763223][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   15.763401][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   15.763571][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   15.763742][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   15.763913][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   15.764083][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.764271][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   15.764447][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   15.764616][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   15.764788][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.764957][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.765127][   T12]  process_one_work (kernel/workqueue.c:3314)
[   15.765320][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   15.765491][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.765668][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   15.765842][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   15.766012][   T12]  kthread (kernel/kthread.c:436)
[   15.766166][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   15.766375][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.766545][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   15.766716][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   15.766919][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   15.767089][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.767271][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   15.779548][  T277] ------------[ cut here ]------------
| [   15.779710][  T277] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/277
| [   15.779948][  T277] Modules linked in:
| [   15.780360][  T277] Tainted: [W]=WARN
[   15.780467][  T277] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.780637][  T277] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.780817][  T277] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.781311][  T277] RSP: 0018:ffa0000000c578f8 EFLAGS: 00010286
[   15.781484][  T277] RAX: 00000000ffffffa6 RBX: ff1100000bfd9700 RCX: 1ff400000018aee5
[   15.781686][  T277] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bfd97bc
[   15.781889][  T277] RBP: ff1100000e601000 R08: 1fe22000017fb2f9 R09: ff110000102a8b80
[   15.782092][  T277] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   15.782303][  T277] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e601000
[   15.782514][  T277] FS:  00007fe559ed1840(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   15.782753][  T277] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.782925][  T277] CR2: 000055caeb79fc78 CR3: 00000000121b6006 CR4: 0000000000771ef0
[   15.783129][  T277] PKRU: 55555554
[   15.783242][  T277] Call Trace:
[   15.783348][  T277]  <TASK>
[   15.783419][  T277]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.783555][  T277]  ? notifier_call_chain (kernel/notifier.c:85)
[   15.783691][  T277]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.783794][  T277]  register_netdevice (net/core/dev.c:11488)
[   15.783931][  T277]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   15.784099][  T277]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   15.784244][  T277]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   15.784385][  T277]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   15.784520][  T277]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   15.784660][  T277]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   15.784798][  T277]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   15.784935][  T277]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   15.785072][  T277]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   15.785215][  T277]  vti_init_net (net/ipv4/ip_vti.c:517)
[   15.785361][  T277]  ops_init (net/core/net_namespace.c:137)
[   15.785465][  T277]  setup_net (net/core/net_namespace.c:446)
[   15.785569][  T277]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   15.785705][  T277]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   15.785840][  T277]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   15.785976][  T277]  copy_net_ns (net/core/net_namespace.c:579)
[   15.786114][  T277]  create_new_namespaces (kernel/nsproxy.c:132)
[   15.786260][  T277]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   15.786403][  T277]  ksys_unshare (kernel/fork.c:3243)
[   15.786538][  T277]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   15.786675][  T277]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   15.786811][  T277]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   15.786946][  T277]  ? __ia32_sys_open (fs/open.c:1374)
[   15.787083][  T277]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   15.787222][  T277]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   15.787364][  T277]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.787499][  T277]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.787633][  T277]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.787769][  T277]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.787937][  T277] RIP: 0033:0x7fe55a193bcb
[   15.788078][  T277] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   15.788575][  T277] RSP: 002b:00007ffd4b563568 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   15.788780][  T277] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fe55a193bcb
[   15.788981][  T277] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   15.789189][  T277] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   15.789396][  T277] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd4b565790
[   15.789597][  T277] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd4b567867
| [   15.794073][  T277] ------------[ cut here ]------------
| [   15.794228][  T277] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/277
| [   15.794466][  T277] Modules linked in:
| [   15.794844][  T277] Tainted: [W]=WARN
[   15.794945][  T277] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.795113][  T277] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.795294][  T277] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.795779][  T277] RSP: 0018:ffa0000000c57a78 EFLAGS: 00010286
[   15.795949][  T277] RAX: 00000000ffffffa6 RBX: ff11000008d2b000 RCX: 1ff400000018af15
[   15.796154][  T277] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000008d2b0bc
[   15.796362][  T277] RBP: ff1100000fd64000 R08: 1fe22000011a5619 R09: ff110000102a8b80
[   15.796564][  T277] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   15.796763][  T277] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fd64000
[   15.796967][  T277] FS:  00007fe559ed1840(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   15.797208][  T277] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.797381][  T277] CR2: 000055caeb79fc78 CR3: 00000000121b6006 CR4: 0000000000771ef0
[   15.797582][  T277] PKRU: 55555554
[   15.797682][  T277] Call Trace:
[   15.797782][  T277]  <TASK>
[   15.797851][  T277]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.797986][  T277]  ? notifier_call_chain (kernel/notifier.c:85)
[   15.798120][  T277]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.798227][  T277]  register_netdevice (net/core/dev.c:11488)
[   15.798368][  T277]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   15.798535][  T277]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.798672][  T277]  register_netdev (net/core/dev.c:11552)
[   15.798807][  T277]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   15.798943][  T277]  ops_init (net/core/net_namespace.c:137)
[   15.799045][  T277]  setup_net (net/core/net_namespace.c:446)
[   15.799154][  T277]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   15.799288][  T277]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   15.799426][  T277]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   15.799561][  T277]  copy_net_ns (net/core/net_namespace.c:579)
[   15.799697][  T277]  create_new_namespaces (kernel/nsproxy.c:132)
[   15.799834][  T277]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   15.799969][  T277]  ksys_unshare (kernel/fork.c:3243)
[   15.800105][  T277]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   15.800244][  T277]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   15.800384][  T277]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   15.800520][  T277]  ? __ia32_sys_open (fs/open.c:1374)
[   15.800655][  T277]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   15.800788][  T277]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   15.800921][  T277]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.801054][  T277]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.801192][  T277]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.801332][  T277]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.801498][  T277] RIP: 0033:0x7fe55a193bcb
[   15.801637][  T277] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   15.802115][  T277] RSP: 002b:00007ffd4b563568 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   15.802339][  T277] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fe55a193bcb
[   15.802552][  T277] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   15.802745][  T277] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   15.802939][  T277] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd4b565790
[   15.803132][  T277] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd4b567867
| [   15.814345][  T277] ------------[ cut here ]------------
| [   15.814507][  T277] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/277
| [   15.814738][  T277] Modules linked in:
| [   15.815101][  T277] Tainted: [W]=WARN
[   15.815718][  T277] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.815883][  T277] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.816051][  T277] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.816574][  T277] RSP: 0018:ffa0000000c57a68 EFLAGS: 00010286
[   15.816740][  T277] RAX: 00000000ffffffa6 RBX: ff1100000be56ac0 RCX: 1ff400000018af13
[   15.816932][  T277] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000be56b7c
[   15.817126][  T277] RBP: ff11000009541000 R08: 1fe22000017cad71 R09: ff110000102a8b80
[   15.817380][  T277] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   15.817574][  T277] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009541000
[   15.817775][  T277] FS:  00007fe559ed1840(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   15.818003][  T277] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.818223][  T277] CR2: 000055caeb79fc78 CR3: 00000000121b6006 CR4: 0000000000771ef0
[   15.818425][  T277] PKRU: 55555554
[   15.818523][  T277] Call Trace:
[   15.818619][  T277]  <TASK>
[   15.818686][  T277]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.818817][  T277]  ? notifier_call_chain (kernel/notifier.c:85)
[   15.818972][  T277]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.819072][  T277]  register_netdevice (net/core/dev.c:11488)
[   15.819257][  T277]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   15.819428][  T277]  register_netdev (net/core/dev.c:11552)
[   15.819559][  T277]  sit_init_net (net/ipv6/sit.c:1860)
[   15.819709][  T277]  ops_init (net/core/net_namespace.c:137)
[   15.819813][  T277]  setup_net (net/core/net_namespace.c:446)
[   15.819912][  T277]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   15.820040][  T277]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   15.820224][  T277]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   15.820362][  T277]  copy_net_ns (net/core/net_namespace.c:579)
[   15.820514][  T277]  create_new_namespaces (kernel/nsproxy.c:132)
[   15.820645][  T277]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   15.820775][  T277]  ksys_unshare (kernel/fork.c:3243)
[   15.820904][  T277]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   15.821032][  T277]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   15.821215][  T277]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   15.821382][  T277]  ? __ia32_sys_open (fs/open.c:1374)
[   15.821515][  T277]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   15.821643][  T277]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   15.821773][  T277]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.821902][  T277]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.822031][  T277]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.822215][  T277]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.822383][  T277] RIP: 0033:0x7fe55a193bcb
[   15.822518][  T277] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   15.823003][  T277] RSP: 002b:00007ffd4b563568 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   15.823252][  T277] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fe55a193bcb
[   15.823450][  T277] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   15.823643][  T277] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   15.823839][  T277] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd4b565790
[   15.824033][  T277] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd4b567867
| [   15.829036][  T277] ------------[ cut here ]------------
| [   15.829196][  T277] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/277
| [   15.829540][  T277] Modules linked in:
| [   15.829933][  T277] Tainted: [W]=WARN
[   15.830031][  T277] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.830201][  T277] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.830383][  T277] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.830855][  T277] RSP: 0018:ffa0000000c57a78 EFLAGS: 00010286
[   15.831019][  T277] RAX: 00000000ffffffa6 RBX: ff1100000bc26040 RCX: 1ff400000018af15
[   15.831242][  T277] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bc260fc
[   15.831446][  T277] RBP: ff11000008c89000 R08: 1fe2200001784c21 R09: ff110000102a8b80
[   15.831659][  T277] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   15.831854][  T277] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008c89000
[   15.832051][  T277] FS:  00007fe559ed1840(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   15.832284][  T277] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.832454][  T277] CR2: 000055caeb79fc78 CR3: 00000000121b6006 CR4: 0000000000771ef0
[   15.832652][  T277] PKRU: 55555554
[   15.832749][  T277] Call Trace:
[   15.832849][  T277]  <TASK>
[   15.832916][  T277]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.833047][  T277]  ? notifier_call_chain (kernel/notifier.c:85)
[   15.833181][  T277]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.833280][  T277]  register_netdevice (net/core/dev.c:11488)
[   15.833417][  T277]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   15.833577][  T277]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.833710][  T277]  register_netdev (net/core/dev.c:11552)
[   15.833839][  T277]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   15.833969][  T277]  ops_init (net/core/net_namespace.c:137)
[   15.834069][  T277]  setup_net (net/core/net_namespace.c:446)
[   15.834172][  T277]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   15.834300][  T277]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   15.834436][  T277]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   15.834567][  T277]  copy_net_ns (net/core/net_namespace.c:579)
[   15.834698][  T277]  create_new_namespaces (kernel/nsproxy.c:132)
[   15.834833][  T277]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   15.834965][  T277]  ksys_unshare (kernel/fork.c:3243)
[   15.835095][  T277]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   15.835235][  T277]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   15.835372][  T277]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   15.835502][  T277]  ? __ia32_sys_open (fs/open.c:1374)
[   15.835633][  T277]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   15.835763][  T277]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   15.835917][  T277]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.836050][  T277]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.836690][  T277]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.836822][  T277]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.836990][  T277] RIP: 0033:0x7fe55a193bcb
[   15.837131][  T277] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   15.837663][  T277] RSP: 002b:00007ffd4b563568 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   15.837864][  T277] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fe55a193bcb
[   15.838064][  T277] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   15.838327][  T277] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   15.838530][  T277] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd4b565790
[   15.838728][  T277] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd4b567867
| [   15.872530][  T278] ------------[ cut here ]------------
| [   15.872710][  T278] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/278
| [   15.872946][  T278] Modules linked in:
| [   15.873353][  T278] Tainted: [W]=WARN
[   15.873449][  T278] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.873609][  T278] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.873777][  T278] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.874272][  T278] RSP: 0018:ffa0000000c67020 EFLAGS: 00010286
[   15.874439][  T278] RAX: 00000000ffffffa6 RBX: ff1100000bf1f540 RCX: 1ff400000018cdca
[   15.874630][  T278] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bf1f5fc
[   15.874825][  T278] RBP: ff1100000eb14000 R08: 1fe22000017e3ec1 R09: ff1100000f5bd158
[   15.875021][  T278] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[   15.875218][  T278] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   15.875418][  T278] FS:  00007ff6967e6840(0000) GS:ff110000b3c47000(0000) knlGS:0000000000000000
[   15.875644][  T278] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.875809][  T278] CR2: 000000002e7fc988 CR3: 00000000121b5005 CR4: 0000000000771ef0
[   15.876009][  T278] PKRU: 55555554
[   15.876107][  T278] Call Trace:
[   15.876212][  T278]  <TASK>
[   15.876279][  T278]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.876418][  T278]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.876518][  T278]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   15.876649][  T278]  __dev_notify_flags (net/core/dev.c:9787)
[   15.876780][  T278]  ? netif_change_name (net/core/dev.c:1495)
[   15.876911][  T278]  ? __dev_change_flags (net/core/dev.c:9752)
[   15.877042][  T278]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   15.877176][  T278]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.877312][  T278]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   15.877444][  T278]  netif_change_flags (net/core/dev.c:9820)
[   15.877598][  T278]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   15.877728][  T278]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   15.877861][  T278]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   15.877991][  T278]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   15.878158][  T278]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.878287][  T278]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   15.878421][  T278]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   15.878550][  T278]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   15.878681][  T278]  ? __kernel_text_address (kernel/extable.c:79)
[   15.878811][  T278]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   15.878944][  T278]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.879072][  T278]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   15.879207][  T278]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.879343][  T278]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.879471][  T278]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.879599][  T278]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.879729][  T278]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   15.879859][  T278]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   15.880015][  T278]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   15.880150][  T278]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   15.880280][  T278]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   15.880416][  T278]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   15.880550][  T278]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   15.880683][  T278]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.880812][  T278]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   15.880941][  T278]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   15.881068][  T278]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   15.881200][  T278]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.881338][  T278]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.881486][  T278]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   15.881614][  T278]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   15.881744][  T278]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.881874][  T278]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   15.882004][  T278]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   15.882133][  T278]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   15.882266][  T278]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.882399][  T278]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   15.882528][  T278]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.882655][  T278]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   15.882785][  T278]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   15.882912][  T278]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.883042][  T278]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   15.883178][  T278]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   15.883386][  T278]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   15.883521][  T278]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   15.883650][  T278]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   15.883780][  T278]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   15.883910][  T278]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   15.884040][  T278]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   15.884175][  T278]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   15.884314][  T278]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   15.884448][  T278]  ? copy_msghdr_from_user (net/socket.c:2635)
[   15.884583][  T278]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   15.884746][  T278]  ? move_addr_to_kernel (net/socket.c:258)
[   15.884876][  T278]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   15.885006][  T278]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   15.885137][  T278]  ___sys_sendmsg (net/socket.c:2752)
[   15.885273][  T278]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   15.885445][  T278]  ? copy_msghdr_from_user (net/socket.c:2603)
[   15.885588][  T278]  __sys_sendmsg (net/socket.c:2784)
[   15.885718][  T278]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   15.885848][  T278]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   15.886009][  T278]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   15.886139][  T278]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.886283][  T278]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.886418][  T278]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.886547][  T278]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.886677][  T278]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.886838][  T278] RIP: 0033:0x7ff696a2008e
[   15.886971][  T278] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   15.887452][  T278] RSP: 002b:00007ffed92c6970 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   15.887648][  T278] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff696a2008e
[   15.887843][  T278] RDX: 0000000000000000 RSI: 00007ffed92c6a20 RDI: 0000000000000005
[   15.888043][  T278] RBP: 00007ffed92c6980 R08: 0000000000000000 R09: 0000000000000000
[   15.888255][  T278] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ea1a
[   15.888459][  T278] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffed92c70f0
| [   16.087852][  T286] ------------[ cut here ]------------
| [   16.088026][  T286] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/286
| [   16.088264][  T286] Modules linked in:
| [   16.088640][  T286] Tainted: [W]=WARN
[   16.088741][  T286] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.088906][  T286] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.089080][  T286] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.089555][  T286] RSP: 0018:ffa0000000cd7a80 EFLAGS: 00010286
[   16.089721][  T286] RAX: 00000000ffffffa6 RBX: ff110000021ff000 RCX: 1ff400000019af16
[   16.089915][  T286] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000021ff0bc
[   16.090111][  T286] RBP: ff1100000963c000 R08: 1fe220000043fe19 R09: ff1100000fc12e80
[   16.090315][  T286] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   16.090510][  T286] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000963c000
[   16.090708][  T286] FS:  00007ff1bfd7b840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   16.090938][  T286] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.091102][  T286] CR2: 00007ff1bff7cc20 CR3: 0000000004a25003 CR4: 0000000000771ef0
[   16.091308][  T286] PKRU: 55555554
[   16.091407][  T286] Call Trace:
[   16.091506][  T286]  <TASK>
[   16.091575][  T286]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.091707][  T286]  ? notifier_call_chain (kernel/notifier.c:85)
[   16.091839][  T286]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.091940][  T286]  register_netdevice (net/core/dev.c:11488)
[   16.092075][  T286]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   16.092246][  T286]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   16.092386][  T286]  register_netdev (net/core/dev.c:11552)
[   16.092516][  T286]  loopback_net_init (drivers/net/loopback.c:218)
[   16.092648][  T286]  ops_init (net/core/net_namespace.c:137)
[   16.092748][  T286]  setup_net (net/core/net_namespace.c:446)
[   16.092847][  T286]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   16.092977][  T286]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   16.093107][  T286]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   16.093246][  T286]  copy_net_ns (net/core/net_namespace.c:579)
[   16.093380][  T286]  create_new_namespaces (kernel/nsproxy.c:132)
[   16.093513][  T286]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   16.093645][  T286]  ksys_unshare (kernel/fork.c:3243)
[   16.093775][  T286]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   16.093905][  T286]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   16.094036][  T286]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   16.094175][  T286]  ? __ia32_sys_open (fs/open.c:1374)
[   16.094308][  T286]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   16.094438][  T286]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   16.094568][  T286]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.094698][  T286]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.094828][  T286]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.094957][  T286]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.095119][  T286] RIP: 0033:0x7ff1c003dbcb
[   16.095260][  T286] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   16.095726][  T286] RSP: 002b:00007ffd651c22d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   16.095921][  T286] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ff1c003dbcb
[   16.096114][  T286] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   16.096316][  T286] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   16.096510][  T286] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffd651c4500
[   16.096702][  T286] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd651c5865
| [   16.100491][  T286] ------------[ cut here ]------------
| [   16.100629][  T286] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/286
| [   16.100855][  T286] Modules linked in:
| [   16.101220][  T286] Tainted: [W]=WARN
[   16.101320][  T286] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.101483][  T286] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.101650][  T286] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.102109][  T286] RSP: 0018:ffa0000000cd7918 EFLAGS: 00010286
[   16.102279][  T286] RAX: 00000000ffffffa6 RBX: ff1100000e25bc40 RCX: 1ff400000019aee9
[   16.102478][  T286] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e25bcfc
[   16.102670][  T286] RBP: ff1100000f224000 R08: 1fe2200001c4b7a1 R09: ff1100000fc12e80
[   16.102863][  T286] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   16.103055][  T286] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f224000
[   16.103253][  T286] FS:  00007ff1bfd7b840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   16.103482][  T286] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.103643][  T286] CR2: 00007ff1bff7cc20 CR3: 0000000004a25003 CR4: 0000000000771ef0
[   16.103838][  T286] PKRU: 55555554
[   16.103934][  T286] Call Trace:
[   16.104032][  T286]  <TASK>
[   16.104100][  T286]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.104236][  T286]  ? notifier_call_chain (kernel/notifier.c:85)
[   16.104372][  T286]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.104471][  T286]  register_netdevice (net/core/dev.c:11488)
[   16.104603][  T286]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   16.104764][  T286]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   16.104897][  T286]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   16.105028][  T286]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   16.105161][  T286]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   16.105291][  T286]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   16.105423][  T286]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   16.105555][  T286]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   16.105686][  T286]  ops_init (net/core/net_namespace.c:137)
[   16.105785][  T286]  setup_net (net/core/net_namespace.c:446)
[   16.105885][  T286]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   16.106013][  T286]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   16.106149][  T286]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   16.106280][  T286]  copy_net_ns (net/core/net_namespace.c:579)
[   16.106412][  T286]  create_new_namespaces (kernel/nsproxy.c:132)
[   16.106544][  T286]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   16.106674][  T286]  ksys_unshare (kernel/fork.c:3243)
[   16.106805][  T286]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   16.106934][  T286]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   16.107063][  T286]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   16.107200][  T286]  ? __ia32_sys_open (fs/open.c:1374)
[   16.107336][  T286]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   16.107464][  T286]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   16.107594][  T286]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.107723][  T286]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.107853][  T286]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.107982][  T286]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.108147][  T286] RIP: 0033:0x7ff1c003dbcb
[   16.108283][  T286] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   16.108760][  T286] RSP: 002b:00007ffd651c22d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   16.108961][  T286] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ff1c003dbcb
[   16.109167][  T286] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   16.109370][  T286] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   16.109564][  T286] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffd651c4500
[   16.109757][  T286] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd651c5865
| [   16.113951][  T286] ------------[ cut here ]------------
| [   16.114106][  T286] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/286
| [   16.114490][  T286] Modules linked in:
| [   16.114853][  T286] Tainted: [W]=WARN
[   16.114952][  T286] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.115117][  T286] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.115290][  T286] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.115758][  T286] RSP: 0018:ffa0000000cd78f8 EFLAGS: 00010286
[   16.115924][  T286] RAX: 00000000ffffffa6 RBX: ff11000010152200 RCX: 1ff400000019aee5
[   16.116122][  T286] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000101522bc
[   16.116326][  T286] RBP: ff1100000f46c000 R08: 1fe220000202a459 R09: ff1100000fc12e80
[   16.116521][  T286] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   16.116716][  T286] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f46c000
[   16.116915][  T286] FS:  00007ff1bfd7b840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   16.117149][  T286] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.117314][  T286] CR2: 00007ff1bff7cc20 CR3: 0000000004a25003 CR4: 0000000000771ef0
[   16.117512][  T286] PKRU: 55555554
[   16.117610][  T286] Call Trace:
[   16.117708][  T286]  <TASK>
[   16.117776][  T286]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.117908][  T286]  ? notifier_call_chain (kernel/notifier.c:85)
[   16.118039][  T286]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.118139][  T286]  register_netdevice (net/core/dev.c:11488)
[   16.118277][  T286]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   16.118445][  T286]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   16.118580][  T286]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   16.118711][  T286]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   16.118841][  T286]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   16.118973][  T286]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   16.119137][  T286]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   16.119277][  T286]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   16.119417][  T286]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   16.119553][  T286]  vti_init_net (net/ipv4/ip_vti.c:517)
[   16.119689][  T286]  ops_init (net/core/net_namespace.c:137)
[   16.119792][  T286]  setup_net (net/core/net_namespace.c:446)
[   16.119893][  T286]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   16.120025][  T286]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   16.120165][  T286]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   16.120300][  T286]  copy_net_ns (net/core/net_namespace.c:579)
[   16.120439][  T286]  create_new_namespaces (kernel/nsproxy.c:132)
[   16.120575][  T286]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   16.120712][  T286]  ksys_unshare (kernel/fork.c:3243)
[   16.120847][  T286]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   16.120983][  T286]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   16.121117][  T286]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   16.121256][  T286]  ? __ia32_sys_open (fs/open.c:1374)
[   16.121397][  T286]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   16.121533][  T286]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   16.121669][  T286]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.121805][  T286]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.121936][  T286]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.122066][  T286]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.122239][  T286] RIP: 0033:0x7ff1c003dbcb
[   16.122380][  T286] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   16.122844][  T286] RSP: 002b:00007ffd651c22d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   16.123040][  T286] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ff1c003dbcb
[   16.123240][  T286] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   16.123439][  T286] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   16.123633][  T286] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffd651c4500
[   16.123827][  T286] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd651c5865
| [   16.127874][  T286] ------------[ cut here ]------------
| [   16.128028][  T286] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/286
| [   16.128257][  T286] Modules linked in:
| [   16.128635][  T286] Tainted: [W]=WARN
[   16.128736][  T286] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.128904][  T286] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.129078][  T286] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.129601][  T286] RSP: 0018:ffa0000000cd7a78 EFLAGS: 00010286
[   16.129766][  T286] RAX: 00000000ffffffa6 RBX: ff1100000e25a040 RCX: 1ff400000019af15
[   16.129961][  T286] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e25a0fc
[   16.130161][  T286] RBP: ff1100001006c000 R08: 1fe2200001c4b421 R09: ff1100000fc12e80
[   16.130364][  T286] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   16.130557][  T286] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100001006c000
[   16.130753][  T286] FS:  00007ff1bfd7b840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   16.130989][  T286] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.131158][  T286] CR2: 00007ff1bff7cc20 CR3: 0000000004a25003 CR4: 0000000000771ef0
[   16.131358][  T286] PKRU: 55555554
[   16.131454][  T286] Call Trace:
[   16.131556][  T286]  <TASK>
[   16.131625][  T286]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.131783][  T286]  ? notifier_call_chain (kernel/notifier.c:85)
[   16.131914][  T286]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.132013][  T286]  register_netdevice (net/core/dev.c:11488)
[   16.132151][  T286]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   16.132315][  T286]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.132448][  T286]  register_netdev (net/core/dev.c:11552)
[   16.132579][  T286]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   16.132712][  T286]  ops_init (net/core/net_namespace.c:137)
[   16.132811][  T286]  setup_net (net/core/net_namespace.c:446)
[   16.132909][  T286]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   16.133049][  T286]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   16.133186][  T286]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   16.133322][  T286]  copy_net_ns (net/core/net_namespace.c:579)
[   16.133454][  T286]  create_new_namespaces (kernel/nsproxy.c:132)
[   16.133587][  T286]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   16.133718][  T286]  ksys_unshare (kernel/fork.c:3243)
[   16.133850][  T286]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   16.133981][  T286]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   16.134111][  T286]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   16.134251][  T286]  ? __ia32_sys_open (fs/open.c:1374)
[   16.134386][  T286]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   16.134516][  T286]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   16.134645][  T286]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.134776][  T286]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.134907][  T286]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.135036][  T286]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.135201][  T286] RIP: 0033:0x7ff1c003dbcb
[   16.135340][  T286] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   16.135813][  T286] RSP: 002b:00007ffd651c22d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   16.136010][  T286] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ff1c003dbcb
[   16.136206][  T286] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   16.136426][  T286] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   16.136618][  T286] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffd651c4500
[   16.136826][  T286] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd651c5865
| [   16.140866][  T286] ------------[ cut here ]------------
| [   16.141004][  T286] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/286
| [   16.141231][  T286] Modules linked in:
| [   16.141597][  T286] Tainted: [W]=WARN
[   16.141695][  T286] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.141858][  T286] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.142024][  T286] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.142624][  T286] RSP: 0018:ffa0000000cd7a68 EFLAGS: 00010286
[   16.142786][  T286] RAX: 00000000ffffffa6 RBX: ff1100000e25ae40 RCX: 1ff400000019af13
[   16.142980][  T286] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e25aefc
[   16.143177][  T286] RBP: ff11000010049000 R08: 1fe2200001c4b5e1 R09: ff1100000fc12e80
[   16.143399][  T286] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   16.143600][  T286] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000010049000
[   16.143795][  T286] FS:  00007ff1bfd7b840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   16.144019][  T286] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.144211][  T286] CR2: 00007ff1bff7cc20 CR3: 0000000004a25003 CR4: 0000000000771ef0
[   16.144414][  T286] PKRU: 55555554
[   16.144511][  T286] Call Trace:
[   16.144609][  T286]  <TASK>
[   16.144676][  T286]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.144805][  T286]  ? notifier_call_chain (kernel/notifier.c:85)
[   16.144964][  T286]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.145066][  T286]  register_netdevice (net/core/dev.c:11488)
[   16.145208][  T286]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   16.145379][  T286]  register_netdev (net/core/dev.c:11552)
[   16.145510][  T286]  sit_init_net (net/ipv6/sit.c:1860)
[   16.145644][  T286]  ops_init (net/core/net_namespace.c:137)
[   16.145745][  T286]  setup_net (net/core/net_namespace.c:446)
[   16.145846][  T286]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   16.145979][  T286]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   16.146115][  T286]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   16.146257][  T286]  copy_net_ns (net/core/net_namespace.c:579)
[   16.146397][  T286]  create_new_namespaces (kernel/nsproxy.c:132)
[   16.146531][  T286]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   16.146660][  T286]  ksys_unshare (kernel/fork.c:3243)
[   16.146790][  T286]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   16.146919][  T286]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   16.147048][  T286]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   16.147183][  T286]  ? __ia32_sys_open (fs/open.c:1374)
[   16.147320][  T286]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   16.147450][  T286]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   16.147578][  T286]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.147707][  T286]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.147835][  T286]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.147976][  T286]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.148156][  T286] RIP: 0033:0x7ff1c003dbcb
[   16.148289][  T286] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   16.148754][  T286] RSP: 002b:00007ffd651c22d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   16.148972][  T286] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ff1c003dbcb
[   16.149168][  T286] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   16.149366][  T286] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   16.149558][  T286] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffd651c4500
[   16.149773][  T286] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd651c5865
| [   16.155744][  T286] ------------[ cut here ]------------
| [   16.155893][  T286] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/286
| [   16.156113][  T286] Modules linked in:
| [   16.156487][  T286] Tainted: [W]=WARN
[   16.156585][  T286] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.156745][  T286] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.156914][  T286] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.157386][  T286] RSP: 0018:ffa0000000cd7a78 EFLAGS: 00010286
[   16.157548][  T286] RAX: 00000000ffffffa6 RBX: ff110000101538c0 RCX: 1ff400000019af15
[   16.157780][  T286] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001015397c
[   16.157975][  T286] RBP: ff1100001002c000 R08: 1fe220000202a731 R09: ff1100000fc12e80
[   16.158176][  T286] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   16.158377][  T286] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100001002c000
[   16.158579][  T286] FS:  00007ff1bfd7b840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   16.158816][  T286] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.158984][  T286] CR2: 00007ff1bff7cc20 CR3: 0000000004a25003 CR4: 0000000000771ef0
[   16.159202][  T286] PKRU: 55555554
[   16.159299][  T286] Call Trace:
[   16.159400][  T286]  <TASK>
[   16.159466][  T286]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.159596][  T286]  ? notifier_call_chain (kernel/notifier.c:85)
[   16.159726][  T286]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.159825][  T286]  register_netdevice (net/core/dev.c:11488)
[   16.159961][  T286]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   16.160124][  T286]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.160262][  T286]  register_netdev (net/core/dev.c:11552)
[   16.160396][  T286]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   16.160526][  T286]  ops_init (net/core/net_namespace.c:137)
[   16.160625][  T286]  setup_net (net/core/net_namespace.c:446)
[   16.160724][  T286]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   16.160854][  T286]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   16.160996][  T286]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   16.161131][  T286]  copy_net_ns (net/core/net_namespace.c:579)
[   16.161328][  T286]  create_new_namespaces (kernel/nsproxy.c:132)
[   16.161461][  T286]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   16.161590][  T286]  ksys_unshare (kernel/fork.c:3243)
[   16.161718][  T286]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   16.161847][  T286]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   16.161978][  T286]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   16.162109][  T286]  ? __ia32_sys_open (fs/open.c:1374)
[   16.162295][  T286]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   16.162430][  T286]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   16.162559][  T286]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.162696][  T286]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.162825][  T286]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.162955][  T286]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.163115][  T286] RIP: 0033:0x7ff1c003dbcb
[   16.163314][  T286] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   16.163796][  T286] RSP: 002b:00007ffd651c22d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   16.163994][  T286] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ff1c003dbcb
[   16.164249][  T286] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   16.164478][  T286] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   16.164671][  T286] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffd651c4500
[   16.164866][  T286] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd651c5865
| [   16.203693][  T287] ------------[ cut here ]------------
| [   16.203863][  T287] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/287
| [   16.204092][  T287] Modules linked in:
| [   16.204482][  T287] Tainted: [W]=WARN
[   16.204583][  T287] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.204749][  T287] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.204924][  T287] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.205733][  T287] RSP: 0018:ffa0000000ce7020 EFLAGS: 00010286
[   16.205912][  T287] RAX: 00000000ffffffa6 RBX: ff1100000c1f5c40 RCX: 1ff400000019cdca
[   16.206113][  T287] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c1f5cfc
[   16.206322][  T287] RBP: ff1100000963c000 R08: 1fe220000183eba1 R09: ff11000009e12e58
[   16.206518][  T287] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[   16.206718][  T287] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   16.206920][  T287] FS:  00007f5b2d880840(0000) GS:ff110000b3c47000(0000) knlGS:0000000000000000
[   16.207158][  T287] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.207332][  T287] CR2: 00007f5b2db501a0 CR3: 000000000a60a006 CR4: 0000000000771ef0
[   16.207535][  T287] PKRU: 55555554
[   16.207636][  T287] Call Trace:
[   16.207737][  T287]  <TASK>
[   16.207804][  T287]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.207937][  T287]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.208043][  T287]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   16.208180][  T287]  __dev_notify_flags (net/core/dev.c:9787)
[   16.208320][  T287]  ? netif_change_name (net/core/dev.c:1495)
[   16.208452][  T287]  ? __dev_change_flags (net/core/dev.c:9752)
[   16.208584][  T287]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   16.208715][  T287]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.208847][  T287]  ? 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))
[   16.208980][  T287]  netif_change_flags (net/core/dev.c:9820)
[   16.209114][  T287]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   16.209251][  T287]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   16.209388][  T287]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   16.209521][  T287]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   16.209685][  T287]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   16.209816][  T287]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   16.209947][  T287]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   16.210078][  T287]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   16.210216][  T287]  ? __kernel_text_address (kernel/extable.c:79)
[   16.210350][  T287]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   16.210482][  T287]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.210614][  T287]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   16.210746][  T287]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.210877][  T287]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   16.211008][  T287]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.211139][  T287]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.211276][  T287]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   16.211412][  T287]  ? __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)
[   16.211544][  T287]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   16.211675][  T287]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   16.211808][  T287]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   16.211943][  T287]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   16.212077][  T287]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   16.212215][  T287]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.212348][  T287]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.212480][  T287]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   16.212610][  T287]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   16.212740][  T287]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.212874][  T287]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.213004][  T287]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.213135][  T287]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   16.213275][  T287]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.213417][  T287]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   16.213551][  T287]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   16.213685][  T287]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   16.213818][  T287]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.213946][  T287]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   16.214077][  T287]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.214210][  T287]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.214348][  T287]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   16.214485][  T287]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.214617][  T287]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   16.214749][  T287]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   16.214878][  T287]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   16.215010][  T287]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   16.215140][  T287]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   16.215275][  T287]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   16.215413][  T287]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   16.215544][  T287]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   16.215706][  T287]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   16.215841][  T287]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   16.215972][  T287]  ? copy_msghdr_from_user (net/socket.c:2635)
[   16.216105][  T287]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   16.216276][  T287]  ? move_addr_to_kernel (net/socket.c:258)
[   16.216412][  T287]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   16.216541][  T287]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   16.216673][  T287]  ___sys_sendmsg (net/socket.c:2752)
[   16.216804][  T287]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   16.216965][  T287]  ? copy_msghdr_from_user (net/socket.c:2603)
[   16.217106][  T287]  __sys_sendmsg (net/socket.c:2784)
[   16.217241][  T287]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   16.217374][  T287]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   16.217536][  T287]  ? 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)
[   16.217669][  T287]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.217800][  T287]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.217929][  T287]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.218058][  T287]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.218211][  T287]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.218378][  T287] RIP: 0033:0x7f5b2daba08e
[   16.218513][  T287] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   16.218972][  T287] RSP: 002b:00007ffc8e0a94e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   16.219188][  T287] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5b2daba08e
[   16.219385][  T287] RDX: 0000000000000000 RSI: 00007ffc8e0a9590 RDI: 0000000000000005
[   16.219577][  T287] RBP: 00007ffc8e0a94f0 R08: 0000000000000000 R09: 0000000000000000
[   16.219769][  T287] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ea1a
[   16.219963][  T287] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc8e0a9c60
| [   16.321466][  T290] ------------[ cut here ]------------
| [   16.321707][  T290] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/290
| [   16.322025][  T290] Modules linked in:
| [   16.323105][  T290] Tainted: [W]=WARN
[   16.323287][  T290] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.323536][  T290] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.323760][  T290] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.324296][  T290] RSP: 0018:ffa0000000d16e30 EFLAGS: 00010286
[   16.324524][  T290] RAX: 00000000ffffffa6 RBX: ff1100000b1b4200 RCX: 1ff40000001a2d8c
[   16.324935][  T290] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b1b42bc
[   16.325196][  T290] RBP: ff1100000fd61000 R08: 1fe2200001636859 R09: ff1100000f022e80
[   16.325456][  T290] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   16.325728][  T290] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000cdf3184
[   16.325984][  T290] FS:  00007f118366e840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   16.326279][  T290] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.326525][  T290] CR2: 00000000004eb188 CR3: 000000000e23c002 CR4: 0000000000771ef0
[   16.326775][  T290] PKRU: 55555554
[   16.326925][  T290] Call Trace:
[   16.327073][  T290]  <TASK>
[   16.327202][  T290]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.327392][  T290]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.327543][  T290]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[   16.327761][  T290]  __dev_notify_flags (net/core/dev.c:9787)
[   16.327947][  T290]  ? netif_change_name (net/core/dev.c:1495)
[   16.328165][  T290]  ? rtnl_newlink (net/core/rtnetlink.c:4150)
[   16.328355][  T290]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   16.328541][  T290]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   16.328724][  T290]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[   16.328910][  T290]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.329094][  T290]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   16.329291][  T290]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   16.329504][  T290]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   16.329705][  T290]  ? queue_delayed_work_on (kernel/workqueue.c:2616 (discriminator 6))
[   16.329907][  T290]  veth_newlink (drivers/net/veth.c:1871)
[   16.330094][  T290]  ? veth_poll_controller (drivers/net/veth.c:1470)
[   16.330289][  T290]  ? kasan_save_stack (mm/kasan/common.c:57)
[   16.330480][  T290]  ? kasan_save_track (mm/kasan/common.c:78)
[   16.330664][  T290]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   16.330866][  T290]  ? __kvmalloc_node_noprof (mm/slub.c:5296 mm/slub.c:6832)
[   16.331048][  T290]  ? alloc_netdev_mqs (net/core/dev.c:12129 (discriminator 7))
[   16.331247][  T290]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   16.331465][  T290]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   16.331652][  T290]  ? rtnl_create_link (net/core/rtnetlink.c:3720)
[   16.331861][  T290]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   16.332053][  T290]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   16.332272][  T290]  ? __dev_get_by_name (net/core/dev.c:883)
[   16.332464][  T290]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   16.332658][  T290]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   16.332847][  T290]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   16.333033][  T290]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.333242][  T290]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.333728][  T290]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   16.333910][  T290]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   16.334095][  T290]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.334297][  T290]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.334509][  T290]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   16.334693][  T290]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   16.334875][  T290]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   16.335063][  T290]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.335260][  T290]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   16.335454][  T290]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.335639][  T290]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.335825][  T290]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   16.336008][  T290]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.336206][  T290]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   16.336406][  T290]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   16.336593][  T290]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   16.336780][  T290]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   16.336968][  T290]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   16.337168][  T290]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   16.337359][  T290]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   16.337545][  T290]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   16.337728][  T290]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   16.337918][  T290]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   16.338103][  T290]  ? copy_msghdr_from_user (net/socket.c:2635)
[   16.338298][  T290]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   16.338524][  T290]  ? move_addr_to_kernel (net/socket.c:258)
[   16.338714][  T290]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.338900][  T290]  ? rcu_read_unlock (./include/linux/rcupdate.h:867 (discriminator 5))
[   16.339085][  T290]  ___sys_sendmsg (net/socket.c:2752)
[   16.339279][  T290]  ? wp_page_copy (./include/linux/pgtable.h:117 mm/memory.c:3976)
[   16.339495][  T290]  ? copy_msghdr_from_user (net/socket.c:2603)
[   16.342481][  T290]  ? do_wp_page (./include/linux/pgtable.h:117 mm/memory.c:4331)
[   16.342682][  T290]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   16.342871][  T290]  __sys_sendmsg (net/socket.c:2784)
[   16.343059][  T290]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   16.343264][  T290]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.343461][  T290]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.343650][  T290]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.343837][  T290]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.344022][  T290]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.344226][  T290]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.344456][  T290] RIP: 0033:0x7f11838a808e
[   16.344651][  T290] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   16.345200][  T290] RSP: 002b:00007fff4602cf50 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   16.345470][  T290] RAX: ffffffffffffffda RBX: 00007fff4602d700 RCX: 00007f11838a808e
[   16.345726][  T290] RDX: 0000000000000000 RSI: 00007fff4602d000 RDI: 0000000000000005
[   16.345982][  T290] RBP: 00007fff4602cf60 R08: 0000000000000000 R09: 0000000000000000
[   16.346251][  T290] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ea1a
[   16.346519][  T290] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff4602d6d8
| [   16.355125][  T290] ------------[ cut here ]------------
| [   16.355344][  T290] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/290
| [   16.355632][  T290] Modules linked in:
| [   16.356108][  T290] Tainted: [W]=WARN
[   16.356268][  T290] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.356499][  T290] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.356724][  T290] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.357268][  T290] RSP: 0018:ffa0000000d171b0 EFLAGS: 00010286
[   16.357497][  T290] RAX: 00000000ffffffa6 RBX: ff110000060bf1c0 RCX: 1ff40000001a2dfc
[   16.357747][  T290] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000060bf27c
[   16.357996][  T290] RBP: ff110000090e9000 R08: 1fe2200000c17e51 R09: ff1100000f022e80
[   16.358330][  T290] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   16.358640][  T290] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffb6403b20
[   16.358952][  T290] FS:  00007f118366e840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   16.359317][  T290] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.359593][  T290] CR2: 00000000004eb188 CR3: 000000000e23c002 CR4: 0000000000771ef0
[   16.359902][  T290] PKRU: 55555554
[   16.360106][  T290] Call Trace:
[   16.360331][  T290]  <TASK>
[   16.360507][  T290]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.360751][  T290]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.360959][  T290]  __dev_notify_flags (net/core/dev.c:9787)
[   16.361213][  T290]  ? netif_change_name (net/core/dev.c:1495)
[   16.361463][  T290]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   16.361707][  T290]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   16.361949][  T290]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   16.362208][  T290]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   16.362471][  T290]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   16.362715][  T290]  ? __dev_get_by_name (net/core/dev.c:883)
[   16.362956][  T290]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   16.363214][  T290]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   16.363471][  T290]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   16.363715][  T290]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.363958][  T290]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.364211][  T290]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   16.364461][  T290]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   16.364712][  T290]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.364956][  T290]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.365210][  T290]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   16.365461][  T290]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   16.365704][  T290]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   16.365947][  T290]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.366201][  T290]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   16.366448][  T290]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.366687][  T290]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.366929][  T290]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   16.367184][  T290]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.367433][  T290]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   16.367679][  T290]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   16.367923][  T290]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   16.368180][  T290]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   16.368431][  T290]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   16.368675][  T290]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   16.368918][  T290]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   16.369174][  T290]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   16.369424][  T290]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   16.369670][  T290]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   16.369913][  T290]  ? copy_msghdr_from_user (net/socket.c:2635)
[   16.370165][  T290]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   16.370447][  T290]  ? move_addr_to_kernel (net/socket.c:258)
[   16.370689][  T290]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.370928][  T290]  ? rcu_read_unlock (./include/linux/rcupdate.h:867 (discriminator 5))
[   16.371181][  T290]  ___sys_sendmsg (net/socket.c:2752)
[   16.371434][  T290]  ? wp_page_copy (./include/linux/pgtable.h:117 mm/memory.c:3976)
[   16.371674][  T290]  ? copy_msghdr_from_user (net/socket.c:2603)
[   16.371919][  T290]  ? do_wp_page (./include/linux/pgtable.h:117 mm/memory.c:4331)
[   16.372179][  T290]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   16.372429][  T290]  __sys_sendmsg (net/socket.c:2784)
[   16.372695][  T290]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   16.372977][  T290]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.373269][  T290]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.373557][  T290]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.373741][  T290]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.373927][  T290]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.374113][  T290]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.374354][  T290] RIP: 0033:0x7f11838a808e
[   16.374547][  T290] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   16.375084][  T290] RSP: 002b:00007fff4602cf50 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   16.375359][  T290] RAX: ffffffffffffffda RBX: 00007fff4602d700 RCX: 00007f11838a808e
[   16.375613][  T290] RDX: 0000000000000000 RSI: 00007fff4602d000 RDI: 0000000000000005
[   16.375868][  T290] RBP: 00007fff4602cf60 R08: 0000000000000000 R09: 0000000000000000
[   16.376121][  T290] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ea1a
[   16.376391][  T290] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff4602d6d8
| [   16.670126][  T299] ------------[ cut here ]------------
| [   16.670356][  T299] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/299
| [   16.670648][  T299] Modules linked in:
| [   16.671117][  T299] Tainted: [W]=WARN
[   16.671979][  T299] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.672298][  T299] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.672523][  T299] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.673042][  T299] RSP: 0018:ffa0000000da7020 EFLAGS: 00010286
[   16.673271][  T299] RAX: 00000000ffffffa6 RBX: ff11000002400200 RCX: 1ff40000001b4dca
[   16.673528][  T299] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000024002bc
[   16.673774][  T299] RBP: ff110000090e9000 R08: 1fe2200000480059 R09: ff1100000f755158
[   16.674018][  T299] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[   16.674276][  T299] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   16.674531][  T299] FS:  00007f109e7c1840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   16.674816][  T299] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.675033][  T299] CR2: 00007f109ea911a0 CR3: 000000000f74f005 CR4: 0000000000771ef0
[   16.675298][  T299] PKRU: 55555554
[   16.675454][  T299] Call Trace:
[   16.675602][  T299]  <TASK>
[   16.675720][  T299]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.675904][  T299]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.676054][  T299]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   16.676252][  T299]  __dev_notify_flags (net/core/dev.c:9787)
[   16.676442][  T299]  ? netif_change_name (net/core/dev.c:1495)
[   16.676624][  T299]  ? __dev_change_flags (net/core/dev.c:9752)
[   16.676807][  T299]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   16.676987][  T299]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.677185][  T299]  ? 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))
[   16.677377][  T299]  netif_change_flags (net/core/dev.c:9820)
[   16.677559][  T299]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   16.677739][  T299]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   16.677924][  T299]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   16.678106][  T299]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   16.678339][  T299]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   16.678522][  T299]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   16.678703][  T299]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   16.678885][  T299]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   16.679069][  T299]  ? __kernel_text_address (kernel/extable.c:79)
[   16.679260][  T299]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   16.679451][  T299]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.679633][  T299]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   16.679815][  T299]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.679997][  T299]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   16.680191][  T299]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.680384][  T299]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.680566][  T299]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   16.680750][  T299]  ? __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)
[   16.680932][  T299]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   16.681115][  T299]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   16.681318][  T299]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   16.681501][  T299]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   16.681686][  T299]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   16.681873][  T299]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.682052][  T299]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.682247][  T299]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   16.682436][  T299]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   16.682617][  T299]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.682800][  T299]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.682979][  T299]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.683176][  T299]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   16.683366][  T299]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.683552][  T299]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   16.683737][  T299]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   16.683919][  T299]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   16.684100][  T299]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.684293][  T299]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   16.684483][  T299]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.684665][  T299]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.684848][  T299]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   16.685029][  T299]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.685224][  T299]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   16.685416][  T299]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   16.685600][  T299]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   16.685784][  T299]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   16.685974][  T299]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   16.686169][  T299]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   16.686358][  T299]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   16.686542][  T299]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   16.686726][  T299]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   16.686911][  T299]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   16.687093][  T299]  ? copy_msghdr_from_user (net/socket.c:2635)
[   16.687287][  T299]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   16.687510][  T299]  ? move_addr_to_kernel (net/socket.c:258)
[   16.687693][  T299]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   16.687873][  T299]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   16.688054][  T299]  ___sys_sendmsg (net/socket.c:2752)
[   16.688248][  T299]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   16.688470][  T299]  ? copy_msghdr_from_user (net/socket.c:2603)
[   16.688665][  T299]  __sys_sendmsg (net/socket.c:2784)
[   16.688849][  T299]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   16.689028][  T299]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   16.689257][  T299]  ? 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)
[   16.689446][  T299]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.689629][  T299]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.689810][  T299]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.689990][  T299]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.690188][  T299]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.690409][  T299] RIP: 0033:0x7f109e9fb08e
[   16.690597][  T299] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   16.691112][  T299] RSP: 002b:00007fffb5aa8f30 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   16.691382][  T299] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f109e9fb08e
[   16.691627][  T299] RDX: 0000000000000000 RSI: 00007fffb5aa8fe0 RDI: 0000000000000005
[   16.691872][  T299] RBP: 00007fffb5aa8f40 R08: 0000000000000000 R09: 0000000000000000
[   16.692116][  T299] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ea1a
[   16.692386][  T299] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fffb5aa96b8
| [   16.716650][  T300] ------------[ cut here ]------------
| [   16.716807][  T300] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/300
| [   16.717040][  T300] Modules linked in:
| [   16.717423][  T300] Tainted: [W]=WARN
[   16.717529][  T300] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.717693][  T300] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.717863][  T300] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.718343][  T300] RSP: 0018:ffa0000000db7020 EFLAGS: 00010286
[   16.718509][  T300] RAX: 00000000ffffffa6 RBX: ff11000002401000 RCX: 1ff40000001b6dca
[   16.718707][  T300] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000024010bc
[   16.718902][  T300] RBP: ff1100000fd61000 R08: 1fe2200000480219 R09: ff1100000f730b58
[   16.719099][  T300] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[   16.719301][  T300] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   16.719503][  T300] FS:  00007f931e67d840(0000) GS:ff110000b3c47000(0000) knlGS:0000000000000000
[   16.719734][  T300] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.719901][  T300] CR2: 0000000034e27988 CR3: 000000000d316001 CR4: 0000000000771ef0
[   16.720102][  T300] PKRU: 55555554
[   16.720206][  T300] Call Trace:
[   16.720305][  T300]  <TASK>
[   16.720377][  T300]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.720511][  T300]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.720612][  T300]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   16.720744][  T300]  __dev_notify_flags (net/core/dev.c:9787)
[   16.720877][  T300]  ? netif_change_name (net/core/dev.c:1495)
[   16.721010][  T300]  ? __dev_change_flags (net/core/dev.c:9752)
[   16.721150][  T300]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   16.721283][  T300]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.721420][  T300]  ? 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))
[   16.721554][  T300]  netif_change_flags (net/core/dev.c:9820)
[   16.721689][  T300]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   16.721823][  T300]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   16.721957][  T300]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   16.722091][  T300]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   16.722262][  T300]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   16.722397][  T300]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   16.722529][  T300]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   16.722662][  T300]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   16.722795][  T300]  ? __kernel_text_address (kernel/extable.c:79)
[   16.722927][  T300]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   16.723061][  T300]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.723199][  T300]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   16.723337][  T300]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.723468][  T300]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   16.723602][  T300]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.723734][  T300]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.723866][  T300]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   16.724000][  T300]  ? __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)
[   16.724131][  T300]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   16.724269][  T300]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   16.724406][  T300]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   16.724540][  T300]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   16.724678][  T300]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   16.724811][  T300]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.724944][  T300]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.725076][  T300]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   16.725212][  T300]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   16.725347][  T300]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.725481][  T300]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.725613][  T300]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.725745][  T300]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   16.725878][  T300]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.726016][  T300]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   16.726155][  T300]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   16.726289][  T300]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   16.726425][  T300]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.726557][  T300]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   16.726693][  T300]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.726824][  T300]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.726957][  T300]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   16.727090][  T300]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.727227][  T300]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   16.727367][  T300]  ? 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))
[   16.727500][  T300]  ? 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))
[   16.727635][  T300]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   16.727769][  T300]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   16.727902][  T300]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   16.728036][  T300]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   16.728176][  T300]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   16.728313][  T300]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   16.728448][  T300]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   16.728580][  T300]  ? copy_msghdr_from_user (net/socket.c:2635)
[   16.728714][  T300]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   16.728877][  T300]  ? move_addr_to_kernel (net/socket.c:258)
[   16.729011][  T300]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   16.729149][  T300]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   16.729284][  T300]  ___sys_sendmsg (net/socket.c:2752)
[   16.729419][  T300]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   16.729583][  T300]  ? copy_msghdr_from_user (net/socket.c:2603)
[   16.729730][  T300]  __sys_sendmsg (net/socket.c:2784)
[   16.729864][  T300]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   16.729996][  T300]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   16.730169][  T300]  ? 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)
[   16.730304][  T300]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.730441][  T300]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.730573][  T300]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.730706][  T300]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.730838][  T300]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.731003][  T300] RIP: 0033:0x7f931e8b708e
[   16.731147][  T300] 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
[   16.731624][  T300] RSP: 002b:00007ffd2f5a4700 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   16.731826][  T300] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f931e8b708e
[   16.732025][  T300] RDX: 0000000000000000 RSI: 00007ffd2f5a47b0 RDI: 0000000000000005
[   16.732227][  T300] RBP: 00007ffd2f5a4710 R08: 0000000000000000 R09: 0000000000000000
[   16.732430][  T300] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ea1a
[   16.732629][  T300] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd2f5a4e88
| [   16.734846][   T39] ------------[ cut here ]------------
| [   16.734985][   T39] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/39
| [   16.735285][   T39] Modules linked in:
| [   16.735659][   T39] Tainted: [W]=WARN
[   16.735752][   T39] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.735906][   T39] Workqueue: events_unbound linkwatch_event
[   16.736063][   T39] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.736229][   T39] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.736671][   T39] RSP: 0018:ffa00000002bf9e0 EFLAGS: 00010286
[   16.736825][   T39] RAX: 00000000ffffffa6 RBX: ff1100000bc26740 RCX: 1ff4000000057f02
[   16.737006][   T39] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bc267fc
[   16.737205][   T39] RBP: ff110000090e9000 R08: 1fe2200001784d01 R09: ff11000001da51a8
[   16.737392][   T39] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000
[   16.737578][   T39] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   16.737761][   T39] FS:  0000000000000000(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   16.737974][   T39] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.738127][   T39] CR2: 00007f75388a0000 CR3: 000000003c54d004 CR4: 0000000000771ef0
[   16.738325][   T39] PKRU: 55555554
[   16.738418][   T39] Call Trace:
[   16.738509][   T39]  <TASK>
[   16.738573][   T39]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.738697][   T39]  ? notifier_call_chain (kernel/notifier.c:85)
[   16.738820][   T39]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.738914][   T39]  netif_state_change (net/core/dev.c:1605)
[   16.739036][   T39]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[   16.739197][   T39]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[   16.739326][   T39]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   16.739448][   T39]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   16.739572][   T39]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   16.739694][   T39]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   16.739816][   T39]  process_one_work (kernel/workqueue.c:3314)
[   16.739942][   T39]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   16.740063][   T39]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.740195][   T39]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   16.740324][   T39]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   16.740446][   T39]  kthread (kernel/kthread.c:436)
[   16.740539][   T39]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   16.740692][   T39]  ? kthread_affine_node (kernel/kthread.c:378)
[   16.740813][   T39]  ret_from_fork (arch/x86/kernel/process.c:158)
[   16.740937][   T39]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   16.741090][   T39]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   16.741216][   T39]  ? kthread_affine_node (kernel/kthread.c:378)
[   16.741342][   T39]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   17.675621][   T37] ------------[ cut here ]------------
| [   17.675814][   T37] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/37
| [   17.676071][   T37] Modules linked in:
| [   17.676470][   T37] Tainted: [W]=WARN
[   17.676564][   T37] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.676722][   T37] Workqueue: events_unbound linkwatch_event
[   17.676879][   T37] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.677041][   T37] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   17.677503][   T37] RSP: 0018:ffa000000029f9e0 EFLAGS: 00010286
[   17.677661][   T37] RAX: 00000000ffffffa6 RBX: ff1100000bc27000 RCX: 1ff4000000053f02
[   17.677849][   T37] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bc270bc
[   17.678037][   T37] RBP: ff1100000fd61000 R08: 1fe2200001784e19 R09: ff11000001da0ba8
[   17.678239][   T37] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000
[   17.678427][   T37] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   17.678612][   T37] FS:  0000000000000000(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   17.678830][   T37] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.678988][   T37] CR2: 00007f75388a0000 CR3: 000000003c54d004 CR4: 0000000000771ef0
[   17.679184][   T37] PKRU: 55555554
[   17.679282][   T37] Call Trace:
[   17.679381][   T37]  <TASK>
[   17.679450][   T37]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   17.679577][   T37]  ? notifier_call_chain (kernel/notifier.c:85)
[   17.679705][   T37]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   17.679800][   T37]  netif_state_change (net/core/dev.c:1605)
[   17.679925][   T37]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[   17.680078][   T37]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[   17.680207][   T37]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   17.680337][   T37]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   17.680463][   T37]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   17.680586][   T37]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   17.680709][   T37]  process_one_work (kernel/workqueue.c:3314)
[   17.680839][   T37]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   17.680961][   T37]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.681089][   T37]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   17.681220][   T37]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   17.681374][   T37]  kthread (kernel/kthread.c:436)
[   17.681469][   T37]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   17.681625][   T37]  ? kthread_affine_node (kernel/kthread.c:378)
[   17.681750][   T37]  ret_from_fork (arch/x86/kernel/process.c:158)
[   17.681877][   T37]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   17.682032][   T37]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   17.682158][   T37]  ? kthread_affine_node (kernel/kthread.c:378)
[   17.682283][   T37]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.391764][   T12] ------------[ cut here ]------------
| [   19.391972][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   19.392295][   T12] Modules linked in:
| [   19.392774][   T12] Tainted: [W]=WARN
[   19.392914][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.393113][   T12] Workqueue: netns cleanup_net
[   19.393307][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.393531][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.394013][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   19.394233][   T12] RAX: 00000000ffffffa6 RBX: ff11000009067c40 RCX: 1ff4000000018eed
[   19.394471][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009067cfc
[   19.394699][   T12] RBP: ff11000008c89000 R08: 1fe220000120cfa1 R09: ff11000001aed1d0
[   19.394927][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   19.395174][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   19.395417][   T12] FS:  0000000000000000(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   19.395683][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.395884][   T12] CR2: 00007fe1336fd000 CR3: 000000003c54d001 CR4: 0000000000771ef0
[   19.396114][   T12] PKRU: 55555554
[   19.396266][   T12] Call Trace:
[   19.396415][   T12]  <TASK>
[   19.396528][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   19.396736][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.396938][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   19.397113][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   19.397304][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.397485][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   19.397659][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.397834][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   19.398008][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   19.398190][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.398368][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   19.398543][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.398714][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.398889][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.399060][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.399246][   T12]  process_one_work (kernel/workqueue.c:3314)
[   19.399427][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.399599][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.399777][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.399952][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.400123][   T12]  kthread (kernel/kthread.c:436)
[   19.400277][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.400486][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.400658][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.400834][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.401037][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.401222][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.401398][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.404089][   T12] ------------[ cut here ]------------
| [   19.404350][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   19.404729][   T12] Modules linked in:
| [   19.405262][   T12] Tainted: [W]=WARN
[   19.405439][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.405635][   T12] Workqueue: netns cleanup_net
[   19.405811][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.406018][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.406520][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   19.406757][   T12] RAX: 00000000ffffffa6 RBX: ff11000009066e40 RCX: 1ff4000000018eed
[   19.406981][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009066efc
[   19.407222][   T12] RBP: ff11000009541000 R08: 1fe220000120cde1 R09: ff11000001aed1d0
[   19.407459][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   19.407686][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   19.407945][   T12] FS:  0000000000000000(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   19.408217][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.408440][   T12] CR2: 00007fe1336fd000 CR3: 000000003c54d001 CR4: 0000000000771ef0
[   19.408670][   T12] PKRU: 55555554
[   19.408806][   T12] Call Trace:
[   19.408948][   T12]  <TASK>
[   19.409059][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   19.409278][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.409492][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   19.409665][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   19.409837][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.410006][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   19.410189][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.410367][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   19.410540][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   19.410708][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.410884][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   19.411059][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.411242][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.411421][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.411589][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.411762][   T12]  process_one_work (kernel/workqueue.c:3314)
[   19.411936][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.412104][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.412291][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.412476][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.412646][   T12]  kthread (kernel/kthread.c:436)
[   19.412786][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.412985][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.413168][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.413347][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.413550][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.413721][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.413891][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.416576][   T12] ------------[ cut here ]------------
| [   19.416746][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   19.417032][   T12] Modules linked in:
| [   19.417997][   T12] Tainted: [W]=WARN
[   19.418201][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.418458][   T12] Workqueue: netns cleanup_net
[   19.418687][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.418942][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.419491][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   19.419739][   T12] RAX: 00000000ffffffa6 RBX: ff110000092b58c0 RCX: 1ff4000000018eed
[   19.420014][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000092b597c
[   19.420298][   T12] RBP: ff1100000fd64000 R08: 1fe2200001256b31 R09: ff11000001aed1d0
[   19.420579][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   19.420857][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   19.421133][   T12] FS:  0000000000000000(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   19.421459][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.421705][   T12] CR2: 00007fe1336fd000 CR3: 000000003c54d001 CR4: 0000000000771ef0
[   19.421985][   T12] PKRU: 55555554
[   19.422189][   T12] Call Trace:
[   19.422348][   T12]  <TASK>
[   19.422457][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   19.422664][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.422865][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   19.423038][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   19.423225][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.423403][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   19.423579][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.423753][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   19.423924][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   19.424121][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.424308][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   19.424491][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.424664][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.424848][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.425023][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.425208][   T12]  process_one_work (kernel/workqueue.c:3314)
[   19.425392][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.425638][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.425816][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.426067][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.426433][   T12]  kthread (kernel/kthread.c:436)
[   19.426575][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.426776][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.426948][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.427207][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.427491][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.427735][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.427906][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.430803][   T12] ------------[ cut here ]------------
| [   19.430973][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   19.432061][   T12] Modules linked in:
| [   19.432698][   T12] Tainted: [W]=WARN
[   19.432882][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.433130][   T12] Workqueue: netns cleanup_net
[   19.433371][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.433624][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.434173][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   19.434427][   T12] RAX: 00000000ffffffa6 RBX: ff110000092b51c0 RCX: 1ff4000000018eed
[   19.434701][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000092b527c
[   19.434976][   T12] RBP: ff1100000e601000 R08: 1fe2200001256a51 R09: ff11000001aed1d0
[   19.435343][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   19.435619][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   19.435966][   T12] FS:  0000000000000000(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   19.436289][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.436536][   T12] CR2: 00007fe1336fd000 CR3: 000000003c54d001 CR4: 0000000000771ef0
[   19.436811][   T12] PKRU: 55555554
[   19.437066][   T12] Call Trace:
[   19.437264][   T12]  <TASK>
[   19.437431][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   19.437682][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.437928][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   19.438230][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   19.438531][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.438754][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   19.438970][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.439199][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   19.439425][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   19.439671][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.439898][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   19.440183][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.440456][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.440720][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.440979][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.441253][   T12]  process_one_work (kernel/workqueue.c:3314)
[   19.441525][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.441763][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.441935][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.442155][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.442331][   T12]  kthread (kernel/kthread.c:436)
[   19.442471][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.442667][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.442837][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.443011][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.443294][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.443472][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.443644][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.446594][   T12] ------------[ cut here ]------------
| [   19.446730][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   19.447041][   T12] Modules linked in:
| [   19.447495][   T12] Tainted: [W]=WARN
[   19.447587][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.447738][   T12] Workqueue: netns cleanup_net
[   19.447866][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.448023][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.448533][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   19.448688][   T12] RAX: 00000000ffffffa6 RBX: ff110000092b4040 RCX: 1ff4000000018eed
[   19.448949][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000092b40fc
[   19.449129][   T12] RBP: ff1100000e12c000 R08: 1fe2200001256821 R09: ff11000001aed1d0
[   19.449382][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   19.449562][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   19.449742][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   19.449955][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.450110][   T12] CR2: 00007f341757f668 CR3: 0000000009d1c005 CR4: 0000000000771ef0
[   19.450355][   T12] PKRU: 55555554
[   19.450444][   T12] Call Trace:
[   19.450534][   T12]  <TASK>
[   19.450597][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   19.450752][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.450905][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   19.451101][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   19.451300][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.451427][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   19.451549][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.451674][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   19.451799][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   19.451921][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.452049][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   19.452248][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.452375][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.452497][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.452621][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.452745][   T12]  process_one_work (kernel/workqueue.c:3314)
[   19.452869][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.452991][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.453254][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.453387][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.453513][   T12]  kthread (kernel/kthread.c:436)
[   19.453606][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.453760][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.453884][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.454017][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.454236][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.454366][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.454494][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.473631][   T12] ------------[ cut here ]------------
| [   19.473778][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   19.474031][   T12] Modules linked in:
| [   19.474893][   T12] Tainted: [W]=WARN
[   19.474996][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.475211][   T12] Workqueue: netns cleanup_net
[   19.475349][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.475515][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.475972][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   19.476132][   T12] RAX: 00000000ffffffa6 RBX: ff110000092b4200 RCX: 1ff4000000018eaf
[   19.476378][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000092b42bc
[   19.476573][   T12] RBP: ff1100000fd61000 R08: 1fe2200001256859 R09: ff11000001aed1d0
[   19.476767][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[   19.476961][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000090e9000
[   19.477203][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   19.477430][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.477589][   T12] CR2: 00007f341757f668 CR3: 000000003c54d003 CR4: 0000000000771ef0
[   19.477781][   T12] PKRU: 55555554
[   19.477876][   T12] Call Trace:
[   19.477973][   T12]  <TASK>
[   19.478039][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.478221][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.478324][   T12]  netif_close_many (net/core/dev.c:1804)
[   19.478452][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.478580][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.478709][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.478835][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   19.478965][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   19.479126][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   19.479345][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.479474][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.479631][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.479757][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.479885][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   19.480046][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   19.480232][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   19.480367][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   19.480496][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   19.480629][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   19.480759][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   19.480890][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   19.481017][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.481200][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   19.481333][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.481459][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.481587][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.481716][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.481846][   T12]  process_one_work (kernel/workqueue.c:3314)
[   19.481978][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.482108][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.482294][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.482431][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.482557][   T12]  kthread (kernel/kthread.c:436)
[   19.482654][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.482814][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.482943][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.483071][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.483281][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.483412][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.483542][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.486383][   T12] ------------[ cut here ]------------
| [   19.486518][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   19.486773][   T12] Modules linked in:
| [   19.487167][   T12] Tainted: [W]=WARN
[   19.487265][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.487429][   T12] Workqueue: netns cleanup_net
[   19.487562][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.487731][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.488190][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   19.488354][   T12] RAX: 00000000ffffffa6 RBX: ff11000008d2be00 RCX: 1ff4000000018eaf
[   19.488545][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000008d2bebc
[   19.488736][   T12] RBP: ff110000090e9000 R08: 1fe22000011a57d9 R09: ff11000001aed1d0
[   19.488925][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[   19.489117][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000eb14000
[   19.489318][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   19.489543][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.489703][   T12] CR2: 00007f341757f668 CR3: 000000003c54d003 CR4: 0000000000771ef0
[   19.489897][   T12] PKRU: 55555554
[   19.489994][   T12] Call Trace:
[   19.490090][   T12]  <TASK>
[   19.490161][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.490290][   T12]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.490425][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.490523][   T12]  netif_close_many (net/core/dev.c:1804)
[   19.490653][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.490782][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.490911][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.491038][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   19.491172][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   19.491336][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   19.491496][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.491625][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.491784][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.491910][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.492039][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   19.492206][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   19.492340][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   19.492468][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   19.492595][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   19.492724][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   19.492854][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   19.492985][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   19.493112][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.493249][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   19.493383][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.493509][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.493637][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.493765][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.493894][   T12]  process_one_work (kernel/workqueue.c:3314)
[   19.494025][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.494156][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.494289][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.494425][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.494553][   T12]  kthread (kernel/kthread.c:436)
[   19.494649][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.494808][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.494937][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.495063][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.495277][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.495410][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.495537][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.498540][   T12] ------------[ cut here ]------------
| [   19.498688][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   19.498944][   T12] Modules linked in:
| [   19.499798][   T12] Tainted: [W]=WARN
[   19.499900][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.500061][   T12] Workqueue: netns cleanup_net
[   19.500249][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.500474][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.500928][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   19.501090][   T12] RAX: 00000000ffffffa6 RBX: ff11000009cb4040 RCX: 1ff4000000018eaf
[   19.501300][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009cb40fc
[   19.501493][   T12] RBP: ff1100000eb14000 R08: 1fe2200001396821 R09: ff11000001aed1d0
[   19.501683][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000041
[   19.501872][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000000c77e0
[   19.502065][   T12] FS:  0000000000000000(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   19.502296][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.502459][   T12] CR2: 00007f34171b3574 CR3: 000000003c54d004 CR4: 0000000000771ef0
[   19.502653][   T12] PKRU: 55555554
[   19.502751][   T12] Call Trace:
[   19.502846][   T12]  <TASK>
[   19.502914][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.503044][   T12]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.503180][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.503278][   T12]  netif_close_many (net/core/dev.c:1804)
[   19.503410][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.503537][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.503664][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.503792][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   19.503921][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   19.504081][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   19.504249][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.504379][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.504537][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.504665][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.504792][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   19.504951][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   19.505081][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   19.505216][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   19.505349][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   19.505477][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   19.505606][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   19.505736][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   19.505863][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.505993][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   19.506123][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.506257][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.506390][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.506518][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.506647][   T12]  process_one_work (kernel/workqueue.c:3314)
[   19.506778][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.506906][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.507040][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.507178][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.507305][   T12]  kthread (kernel/kthread.c:436)
[   19.507404][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.507562][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.507689][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.507817][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.507979][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.508107][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.508242][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.517166][   T12] ------------[ cut here ]------------
| [   19.517307][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   19.517634][   T12] Modules linked in:
| [   19.518027][   T12] Tainted: [W]=WARN
[   19.518119][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.518370][   T12] Workqueue: netns cleanup_net
[   19.518499][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.518658][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.519151][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   19.519306][   T12] RAX: 00000000ffffffa6 RBX: ff11000009cb4c80 RCX: 1ff4000000018ed5
[   19.519492][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009cb4d3c
[   19.519672][   T12] RBP: ff1100000fd61000 R08: 1fe22000013969a9 R09: ff11000001aed1d0
[   19.519853][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   19.520033][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   19.520263][   T12] FS:  0000000000000000(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   19.520480][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.520635][   T12] CR2: 00007f34171b3574 CR3: 000000003c54d004 CR4: 0000000000771ef0
[   19.520820][   T12] PKRU: 55555554
[   19.520911][   T12] Call Trace:
[   19.521003][   T12]  <TASK>
[   19.521067][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   19.521275][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.521431][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.521554][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.521676][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   19.521833][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   19.521957][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   19.522080][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   19.522253][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   19.522381][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   19.522506][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   19.522627][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.522755][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   19.522878][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.522998][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.523122][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.523290][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.523415][   T12]  process_one_work (kernel/workqueue.c:3314)
[   19.523541][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.523665][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.523792][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.523919][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.524041][   T12]  kthread (kernel/kthread.c:436)
[   19.524133][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.524337][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.524460][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.524584][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.524740][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.524862][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.524993][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.528315][   T12] ------------[ cut here ]------------
| [   19.528461][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   19.528706][   T12] Modules linked in:
| [   19.529083][   T12] Tainted: [W]=WARN
[   19.529184][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.529347][   T12] Workqueue: netns cleanup_net
[   19.529549][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.529724][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.530174][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   19.530333][   T12] RAX: 00000000ffffffa6 RBX: ff11000009cb5540 RCX: 1ff4000000018ed5
[   19.530514][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009cb55fc
[   19.530694][   T12] RBP: ff110000090e9000 R08: 1fe2200001396ac1 R09: ff11000001aed1d0
[   19.530876][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   19.531057][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   19.531245][   T12] FS:  0000000000000000(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   19.531469][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.531624][   T12] CR2: 00007f34171b3574 CR3: 000000003c54d004 CR4: 0000000000771ef0
[   19.531808][   T12] PKRU: 55555554
[   19.531900][   T12] Call Trace:
[   19.531992][   T12]  <TASK>
[   19.532055][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   19.532219][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.532374][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.532496][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.532620][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   19.532776][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   19.532909][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   19.533041][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   19.533170][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   19.533293][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   19.533421][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   19.533544][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.533669][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   19.533792][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.533914][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.534047][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.534180][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.534304][   T12]  process_one_work (kernel/workqueue.c:3314)
[   19.534434][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.534557][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.534683][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.534809][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.534930][   T12]  kthread (kernel/kthread.c:436)
[   19.535023][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.535181][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.535303][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.535430][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.535583][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.535707][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.535829][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.541021][   T12] ------------[ cut here ]------------
| [   19.541173][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   19.541419][   T12] Modules linked in:
| [   19.541795][   T12] Tainted: [W]=WARN
[   19.541933][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.542103][   T12] Workqueue: netns cleanup_net
[   19.542245][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.542411][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.542867][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   19.543027][   T12] RAX: 00000000ffffffa6 RBX: ff110000026ea3c0 RCX: 1ff4000000018ed5
[   19.543214][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000026ea47c
[   19.543399][   T12] RBP: ff1100000eb14000 R08: 1fe22000004dd491 R09: ff11000001aed1d0
[   19.543581][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   19.543762][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   19.543943][   T12] FS:  0000000000000000(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   19.544169][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.544328][   T12] CR2: 00007f34171b3574 CR3: 000000003c54d004 CR4: 0000000000771ef0
[   19.544511][   T12] PKRU: 55555554
[   19.544602][   T12] Call Trace:
[   19.544694][   T12]  <TASK>
[   19.544767][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   19.544928][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.545080][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.545210][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.545333][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   19.545490][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   19.545613][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   19.545736][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   19.545868][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   19.545990][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   19.546116][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   19.546242][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.546372][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   19.546494][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.546616][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.546740][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.546862][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.546986][   T12]  process_one_work (kernel/workqueue.c:3314)
[   19.547114][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.547243][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.547376][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.547502][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.547624][   T12]  kthread (kernel/kthread.c:436)
[   19.547716][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.547868][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.547992][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.548115][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.548364][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.548487][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.548610][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.599597][  T316] ------------[ cut here ]------------
| [   19.599807][  T316] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/316
| [   19.600089][  T316] Modules linked in:
| [   19.600588][  T316] Tainted: [W]=WARN
[   19.600738][  T316] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.600954][  T316] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.601194][  T316] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.601729][  T316] RSP: 0018:ffa0000000e47a80 EFLAGS: 00010286
[   19.601945][  T316] RAX: 00000000ffffffa6 RBX: ff1100000bf23a80 RCX: 1ff40000001c8f16
[   19.602210][  T316] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bf23b3c
[   19.602464][  T316] RBP: ff1100000ebc4000 R08: 1fe22000017e4769 R09: ff1100000f6b0b80
[   19.602712][  T316] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   19.602961][  T316] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000ebc4000
[   19.603224][  T316] FS:  00007f60f872b840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   19.603518][  T316] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.603739][  T316] CR2: 00007f60f892cc20 CR3: 000000000f51f002 CR4: 0000000000771ef0
[   19.603988][  T316] PKRU: 55555554
[   19.604137][  T316] Call Trace:
[   19.604299][  T316]  <TASK>
[   19.604425][  T316]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.604611][  T316]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.604796][  T316]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.604948][  T316]  register_netdevice (net/core/dev.c:11488)
[   19.605135][  T316]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.605370][  T316]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   19.605554][  T316]  register_netdev (net/core/dev.c:11552)
[   19.605739][  T316]  loopback_net_init (drivers/net/loopback.c:218)
[   19.605924][  T316]  ops_init (net/core/net_namespace.c:137)
[   19.606076][  T316]  setup_net (net/core/net_namespace.c:446)
[   19.606240][  T316]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.606430][  T316]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.606613][  T316]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.606798][  T316]  copy_net_ns (net/core/net_namespace.c:579)
[   19.606983][  T316]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.607182][  T316]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.607368][  T316]  ksys_unshare (kernel/fork.c:3243)
[   19.607553][  T316]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   19.607739][  T316]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.607922][  T316]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   19.608106][  T316]  ? __ia32_sys_open (fs/open.c:1374)
[   19.608299][  T316]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.608488][  T316]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.608671][  T316]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.608852][  T316]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.609036][  T316]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.609233][  T316]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.609455][  T316] RIP: 0033:0x7f60f89edbcb
[   19.609646][  T316] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.610181][  T316] RSP: 002b:00007fff99ac2218 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.610440][  T316] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f60f89edbcb
[   19.610687][  T316] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   19.610936][  T316] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   19.611194][  T316] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fff99ac4440
[   19.611450][  T316] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff99ac4867
| [   19.613836][   T12] ------------[ cut here ]------------
| [   19.613968][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   19.614221][   T12] Modules linked in:
| [   19.614597][   T12] Tainted: [W]=WARN
[   19.614689][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.614843][   T12] Workqueue: netns cleanup_net
[   19.614970][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.615129][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.615806][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   19.615964][   T12] RAX: 00000000ffffffa6 RBX: ff1100000d2b31c0 RCX: 1ff4000000018eed
[   19.616150][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d2b327c
[   19.616333][   T12] RBP: ff1100001002c000 R08: 1fe2200001a56651 R09: ff11000001aed1d0
[   19.616513][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   19.616693][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   19.616876][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   19.617088][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.617245][   T12] CR2: 00007f9a897cb574 CR3: 000000003c54d003 CR4: 0000000000771ef0
[   19.617433][   T12] PKRU: 55555554
[   19.617524][   T12] Call Trace:
[   19.617616][   T12]  <TASK>
[   19.617686][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   19.617842][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.617991][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   19.618113][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   19.618244][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.618368][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   19.618491][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.618616][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   19.618750][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   19.618876][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.619000][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   19.619122][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.619248][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.619375][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.619497][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.619620][   T12]  process_one_work (kernel/workqueue.c:3314)
[   19.619746][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.619868][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.619993][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.620119][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.620244][   T12]  kthread (kernel/kthread.c:436)
[   19.620339][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.620495][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.620617][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.620739][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.620891][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.621024][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.621152][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.623367][   T12] ------------[ cut here ]------------
| [   19.623492][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   19.623728][   T12] Modules linked in:
| [   19.624097][   T12] Tainted: [W]=WARN
[   19.624196][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.624351][   T12] Workqueue: netns cleanup_net
[   19.624478][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.624636][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.625068][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   19.625227][   T12] RAX: 00000000ffffffa6 RBX: ff1100000d1a3540 RCX: 1ff4000000018eed
[   19.625415][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d1a35fc
[   19.625597][   T12] RBP: ff11000010049000 R08: 1fe2200001a346c1 R09: ff11000001aed1d0
[   19.625776][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   19.625958][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   19.626139][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   19.626362][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.626514][   T12] CR2: 00007f9a897cb574 CR3: 000000003c54d003 CR4: 0000000000771ef0
[   19.626696][   T12] PKRU: 55555554
[   19.626787][   T12] Call Trace:
[   19.626878][   T12]  <TASK>
[   19.626942][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   19.627096][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.627254][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   19.627381][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   19.627503][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.627623][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   19.627745][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.627869][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   19.627993][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   19.628114][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.628246][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   19.628371][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.628495][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.628617][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.628739][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.628862][   T12]  process_one_work (kernel/workqueue.c:3314)
[   19.628988][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.629112][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.629244][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.629376][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.629500][   T12]  kthread (kernel/kthread.c:436)
[   19.629591][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.629744][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.629867][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.629991][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.630148][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.630270][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.630395][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.632639][   T12] ------------[ cut here ]------------
| [   19.632768][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   19.633009][   T12] Modules linked in:
| [   19.633387][   T12] Tainted: [W]=WARN
[   19.633478][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.633646][   T12] Workqueue: netns cleanup_net
[   19.633772][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.633930][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.634374][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   19.634527][   T12] RAX: 00000000ffffffa6 RBX: ff110000097531c0 RCX: 1ff4000000018eed
[   19.634708][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000975327c
[   19.634889][   T12] RBP: ff1100001006c000 R08: 1fe22000012ea651 R09: ff11000001aed1d0
[   19.635070][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   19.635256][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   19.635449][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   19.635661][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.635814][   T12] CR2: 00007f9a897cb574 CR3: 000000003c54d003 CR4: 0000000000771ef0
[   19.635998][   T12] PKRU: 55555554
[   19.636088][   T12] Call Trace:
[   19.636184][   T12]  <TASK>
[   19.636247][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   19.636404][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.636556][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   19.636678][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   19.636801][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.636932][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   19.637055][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.637183][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   19.637307][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   19.637434][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.637559][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   19.637682][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.637804][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.637928][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.638049][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.638179][   T12]  process_one_work (kernel/workqueue.c:3314)
[   19.638304][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.638433][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.638560][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.638688][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.638810][   T12]  kthread (kernel/kthread.c:436)
[   19.638901][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.639057][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.639188][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.639311][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.639466][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.639589][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.639717][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.641762][   T12] ------------[ cut here ]------------
| [   19.641891][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   19.642130][   T12] Modules linked in:
| [   19.642510][   T12] Tainted: [W]=WARN
[   19.642602][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.642755][   T12] Workqueue: netns cleanup_net
[   19.642881][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.643039][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.643485][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   19.643640][   T12] RAX: 00000000ffffffa6 RBX: ff11000009752740 RCX: 1ff4000000018eed
[   19.643824][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000097527fc
[   19.644007][   T12] RBP: ff1100000f46c000 R08: 1fe22000012ea501 R09: ff11000001aed1d0
[   19.644194][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   19.644379][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   19.644563][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   19.644775][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.644927][   T12] CR2: 00007f9a897cb574 CR3: 000000003c54d003 CR4: 0000000000771ef0
[   19.645109][   T12] PKRU: 55555554
[   19.645206][   T12] Call Trace:
[   19.645297][   T12]  <TASK>
[   19.645365][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   19.645520][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.645672][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   19.645793][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   19.645916][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.646038][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   19.646168][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.646292][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   19.646421][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   19.646542][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.646668][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   19.646790][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.646911][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.647035][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.647169][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.647293][   T12]  process_one_work (kernel/workqueue.c:3314)
[   19.647428][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.647554][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.647681][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.647807][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.647933][   T12]  kthread (kernel/kthread.c:436)
[   19.648025][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.648184][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.648306][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.648433][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.648584][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.648707][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.648834][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.650822][   T12] ------------[ cut here ]------------
| [   19.650943][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   19.651185][   T12] Modules linked in:
| [   19.651558][   T12] Tainted: [W]=WARN
[   19.651650][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.651801][   T12] Workqueue: netns cleanup_net
[   19.651928][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.652086][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.652543][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   19.652697][   T12] RAX: 00000000ffffffa6 RBX: ff110000026eb700 RCX: 1ff4000000018eed
[   19.652879][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000026eb7bc
[   19.653061][   T12] RBP: ff1100000f224000 R08: 1fe22000004dd6f9 R09: ff11000001aed1d0
[   19.653245][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   19.653430][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   19.653614][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   19.653829][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.653981][   T12] CR2: 00007f9a897cb574 CR3: 000000003c54d003 CR4: 0000000000771ef0
[   19.654169][   T12] PKRU: 55555554
[   19.654259][   T12] Call Trace:
[   19.654352][   T12]  <TASK>
[   19.654415][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   19.654572][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.654727][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   19.654850][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   19.654978][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.655100][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   19.655229][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.655355][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   19.655478][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   19.655600][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.655725][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   19.655848][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.655969][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.656095][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.656223][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.656352][   T12]  process_one_work (kernel/workqueue.c:3314)
[   19.656479][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.656601][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.656728][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.656856][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.656977][   T12]  kthread (kernel/kthread.c:436)
[   19.657068][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.657226][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.657351][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.657474][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.657626][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.657746][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.657869][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.662692][  T316] ------------[ cut here ]------------
| [   19.662880][  T316] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/316
| [   19.663174][  T316] Modules linked in:
| [   19.663655][  T316] Tainted: [W]=WARN
[   19.663803][  T316] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.664018][  T316] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.664254][  T316] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.664787][  T316] RSP: 0018:ffa0000000e47918 EFLAGS: 00010286
[   19.665004][  T316] RAX: 00000000ffffffa6 RBX: ff1100000b997c40 RCX: 1ff40000001c8ee9
[   19.665263][  T316] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b997cfc
[   19.665518][  T316] RBP: ff1100000f109000 R08: 1fe2200001732fa1 R09: ff1100000f6b0b80
[   19.665766][  T316] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   19.666017][  T316] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f109000
[   19.666281][  T316] FS:  00007f60f872b840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   19.666572][  T316] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.666787][  T316] CR2: 00007f60f892cc20 CR3: 000000000f51f002 CR4: 0000000000771ef0
[   19.667038][  T316] PKRU: 55555554
[   19.667194][  T316] Call Trace:
[   19.667348][  T316]  <TASK>
[   19.667467][  T316]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.667653][  T316]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.667840][  T316]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.667991][  T316]  register_netdevice (net/core/dev.c:11488)
[   19.668189][  T316]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.668416][  T316]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   19.668602][  T316]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   19.668784][  T316]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   19.668967][  T316]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   19.669164][  T316]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   19.669354][  T316]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   19.669635][  T316]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   19.669826][  T316]  ops_init (net/core/net_namespace.c:137)
[   19.669980][  T316]  setup_net (net/core/net_namespace.c:446)
[   19.670132][  T316]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.670419][  T316]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.670606][  T316]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.670794][  T316]  copy_net_ns (net/core/net_namespace.c:579)
[   19.670978][  T316]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.671179][  T316]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.671367][  T316]  ksys_unshare (kernel/fork.c:3243)
[   19.671551][  T316]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   19.671733][  T316]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.671915][  T316]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   19.672195][  T316]  ? __ia32_sys_open (fs/open.c:1374)
[   19.672390][  T316]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.672575][  T316]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.672756][  T316]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.673024][  T316]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.673219][  T316]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.673410][  T316]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.673712][  T316] RIP: 0033:0x7f60f89edbcb
[   19.673900][  T316] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.674542][  T316] RSP: 002b:00007fff99ac2218 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.674793][  T316] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f60f89edbcb
[   19.675038][  T316] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   19.675399][  T316] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   19.675647][  T316] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fff99ac4440
[   19.675980][  T316] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff99ac4867
| [   19.692333][  T316] ------------[ cut here ]------------
| [   19.692533][  T316] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/316
| [   19.692813][  T316] Modules linked in:
| [   19.693351][  T316] Tainted: [W]=WARN
[   19.693499][  T316] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.693715][  T316] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.693943][  T316] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.694492][  T316] RSP: 0018:ffa0000000e478f8 EFLAGS: 00010286
[   19.694711][  T316] RAX: 00000000ffffffa6 RBX: ff1100000b996c80 RCX: 1ff40000001c8ee5
[   19.694962][  T316] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b996d3c
[   19.695225][  T316] RBP: ff110000078d1000 R08: 1fe2200001732da9 R09: ff1100000f6b0b80
[   19.695483][  T316] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   19.695734][  T316] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000078d1000
[   19.695986][  T316] FS:  00007f60f872b840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   19.696288][  T316] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.696515][  T316] CR2: 00007f60f892cc20 CR3: 000000000f51f002 CR4: 0000000000771ef0
[   19.696766][  T316] PKRU: 55555554
[   19.696917][  T316] Call Trace:
[   19.697066][  T316]  <TASK>
[   19.697197][  T316]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.697393][  T316]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.697583][  T316]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.697737][  T316]  register_netdevice (net/core/dev.c:11488)
[   19.697922][  T316]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.698154][  T316]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   19.698347][  T316]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   19.698532][  T316]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   19.698715][  T316]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   19.698902][  T316]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   19.699088][  T316]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   19.699288][  T316]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   19.699482][  T316]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   19.699668][  T316]  vti_init_net (net/ipv4/ip_vti.c:517)
[   19.699854][  T316]  ops_init (net/core/net_namespace.c:137)
[   19.700008][  T316]  setup_net (net/core/net_namespace.c:446)
[   19.700172][  T316]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.700364][  T316]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.700550][  T316]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.700769][  T316]  copy_net_ns (net/core/net_namespace.c:579)
[   19.700955][  T316]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.701156][  T316]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.701346][  T316]  ksys_unshare (kernel/fork.c:3243)
[   19.701531][  T316]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   19.701717][  T316]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.701901][  T316]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   19.702088][  T316]  ? __ia32_sys_open (fs/open.c:1374)
[   19.702288][  T316]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.702476][  T316]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.702660][  T316]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.702844][  T316]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.703030][  T316]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.703229][  T316]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.703454][  T316] RIP: 0033:0x7f60f89edbcb
[   19.703643][  T316] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.704190][  T316] RSP: 002b:00007fff99ac2218 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.704452][  T316] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f60f89edbcb
[   19.704701][  T316] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   19.704949][  T316] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   19.705211][  T316] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fff99ac4440
[   19.705465][  T316] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff99ac4867
| [   19.707478][   T12] ------------[ cut here ]------------
| [   19.707615][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   19.707870][   T12] Modules linked in:
| [   19.708266][   T12] Tainted: [W]=WARN
[   19.708366][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.708528][   T12] Workqueue: netns cleanup_net
[   19.708660][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.708826][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.709762][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   19.709930][   T12] RAX: 00000000ffffffa6 RBX: ff1100000ce62c80 RCX: 1ff4000000018eaf
[   19.710119][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ce62d3c
[   19.710314][   T12] RBP: ff1100000963c000 R08: 1fe22000019cc5a9 R09: ff11000001aed1d0
[   19.710508][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[   19.710699][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000000c77e0
[   19.710889][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   19.711112][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.711280][   T12] CR2: 00007f9a897cb574 CR3: 000000003c54d003 CR4: 0000000000771ef0
[   19.711477][   T12] PKRU: 55555554
[   19.711573][   T12] Call Trace:
[   19.711668][   T12]  <TASK>
[   19.711735][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.711866][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.711964][   T12]  netif_close_many (net/core/dev.c:1804)
[   19.712092][   T12]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   19.712228][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   19.712362][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   19.712525][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   19.712686][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.712814][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.712942][   T12]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   19.713070][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.713244][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   19.713380][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   19.713512][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   19.713641][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   19.713769][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   19.713898][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   19.714028][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   19.714159][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.714290][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   19.714422][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.714550][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.714680][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.714808][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.714939][   T12]  process_one_work (kernel/workqueue.c:3314)
[   19.715072][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.715209][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.715347][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.715481][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.715611][   T12]  kthread (kernel/kthread.c:436)
[   19.715708][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.715868][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.715997][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.716126][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.716292][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.716425][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.716554][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.718739][   T12] ------------[ cut here ]------------
| [   19.718873][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   19.719119][   T12] Modules linked in:
| [   19.719509][   T12] Tainted: [W]=WARN
[   19.719602][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.719757][   T12] Workqueue: netns cleanup_net
[   19.719885][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.720046][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.720500][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   19.720656][   T12] RAX: 00000000ffffffa6 RBX: ff1100000ce63e00 RCX: 1ff4000000018ed5
[   19.720840][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ce63ebc
[   19.721026][   T12] RBP: ff1100000963c000 R08: 1fe22000019cc7d9 R09: ff11000001aed1d0
[   19.721216][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   19.721404][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   19.721593][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   19.721816][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.721972][   T12] CR2: 00007f9a897cb574 CR3: 000000003c54d003 CR4: 0000000000771ef0
[   19.722162][   T12] PKRU: 55555554
[   19.722260][   T12] Call Trace:
[   19.722356][   T12]  <TASK>
[   19.722420][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   19.722580][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.722739][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   19.722865][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   19.722992][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   19.723117][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   19.723245][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   19.723376][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   19.723502][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   19.723627][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.723754][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   19.723879][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.724004][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.724130][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.724262][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.724389][   T12]  process_one_work (kernel/workqueue.c:3314)
[   19.724519][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.724646][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.724779][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.724909][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.725033][   T12]  kthread (kernel/kthread.c:436)
[   19.725129][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.725289][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.725418][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.725543][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.725698][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.725824][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.725948][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.744475][  T316] ------------[ cut here ]------------
| [   19.744647][  T316] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/316
| [   19.744885][  T316] Modules linked in:
| [   19.745270][  T316] Tainted: [W]=WARN
[   19.745377][  T316] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.745548][  T316] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.745723][  T316] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.746211][  T316] RSP: 0018:ffa0000000e47a78 EFLAGS: 00010286
[   19.746384][  T316] RAX: 00000000ffffffa6 RBX: ff110000026eac80 RCX: 1ff40000001c8f15
[   19.746588][  T316] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000026ead3c
[   19.746791][  T316] RBP: ff1100000f314000 R08: 1fe22000004dd5a9 R09: ff1100000f6b0b80
[   19.746992][  T316] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   19.747198][  T316] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f314000
[   19.747406][  T316] FS:  00007f60f872b840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   19.747652][  T316] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.747823][  T316] CR2: 00007f9a897cb574 CR3: 000000000f51f002 CR4: 0000000000771ef0
[   19.748030][  T316] PKRU: 55555554
[   19.748130][  T316] Call Trace:
[   19.748238][  T316]  <TASK>
[   19.748308][  T316]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.748447][  T316]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.748583][  T316]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.748687][  T316]  register_netdevice (net/core/dev.c:11488)
[   19.748826][  T316]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.748993][  T316]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.749131][  T316]  register_netdev (net/core/dev.c:11552)
[   19.749273][  T316]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   19.749414][  T316]  ops_init (net/core/net_namespace.c:137)
[   19.749520][  T316]  setup_net (net/core/net_namespace.c:446)
[   19.749624][  T316]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.749759][  T316]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.749894][  T316]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.750034][  T316]  copy_net_ns (net/core/net_namespace.c:579)
[   19.750177][  T316]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.750316][  T316]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.750458][  T316]  ksys_unshare (kernel/fork.c:3243)
[   19.750593][  T316]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   19.750730][  T316]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.750866][  T316]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   19.751003][  T316]  ? __ia32_sys_open (fs/open.c:1374)
[   19.751140][  T316]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.751282][  T316]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.751422][  T316]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.751560][  T316]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.751696][  T316]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.751832][  T316]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.752003][  T316] RIP: 0033:0x7f60f89edbcb
[   19.752152][  T316] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.752641][  T316] RSP: 002b:00007fff99ac2218 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.752847][  T316] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f60f89edbcb
[   19.753050][  T316] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   19.753255][  T316] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   19.753461][  T316] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fff99ac4440
[   19.753665][  T316] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff99ac4867
| [   19.757862][  T316] ------------[ cut here ]------------
| [   19.758017][  T316] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/316
| [   19.758755][  T316] Modules linked in:
| [   19.759138][  T316] Tainted: [W]=WARN
[   19.759335][  T316] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.759505][  T316] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.759680][  T316] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.760219][  T316] RSP: 0018:ffa0000000e47a68 EFLAGS: 00010286
[   19.760468][  T316] RAX: 00000000ffffffa6 RBX: ff11000009752200 RCX: 1ff40000001c8f13
[   19.760674][  T316] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000097522bc
[   19.760872][  T316] RBP: ff1100000f299000 R08: 1fe22000012ea459 R09: ff1100000f6b0b80
[   19.761077][  T316] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   19.761351][  T316] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f299000
[   19.761554][  T316] FS:  00007f60f872b840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   19.761789][  T316] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.761958][  T316] CR2: 00007f9a897cb574 CR3: 000000000f51f002 CR4: 0000000000771ef0
[   19.762232][  T316] PKRU: 55555554
[   19.762336][  T316] Call Trace:
[   19.762437][  T316]  <TASK>
[   19.762506][  T316]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.762641][  T316]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.762776][  T316]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.762879][  T316]  register_netdevice (net/core/dev.c:11488)
[   19.763017][  T316]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.763242][  T316]  register_netdev (net/core/dev.c:11552)
[   19.763381][  T316]  sit_init_net (net/ipv6/sit.c:1860)
[   19.763517][  T316]  ops_init (net/core/net_namespace.c:137)
[   19.763621][  T316]  setup_net (net/core/net_namespace.c:446)
[   19.763723][  T316]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.763857][  T316]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.763994][  T316]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.764132][  T316]  copy_net_ns (net/core/net_namespace.c:579)
[   19.764362][  T316]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.764503][  T316]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.764641][  T316]  ksys_unshare (kernel/fork.c:3243)
[   19.764778][  T316]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   19.764914][  T316]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.765049][  T316]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   19.765245][  T316]  ? __ia32_sys_open (fs/open.c:1374)
[   19.765387][  T316]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.765521][  T316]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.765656][  T316]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.765793][  T316]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.765928][  T316]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.766064][  T316]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.766323][  T316] RIP: 0033:0x7f60f89edbcb
[   19.766466][  T316] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.766950][  T316] RSP: 002b:00007fff99ac2218 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.767210][  T316] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f60f89edbcb
[   19.767418][  T316] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   19.767620][  T316] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   19.767820][  T316] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fff99ac4440
[   19.768021][  T316] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff99ac4867
| [   19.773733][  T316] ------------[ cut here ]------------
| [   19.773884][  T316] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/316
| [   19.774119][  T316] Modules linked in:
| [   19.775003][  T316] Tainted: [W]=WARN
[   19.775105][  T316] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.775334][  T316] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.775511][  T316] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.775992][  T316] RSP: 0018:ffa0000000e47a78 EFLAGS: 00010286
[   19.776217][  T316] RAX: 00000000ffffffa6 RBX: ff1100000988c200 RCX: 1ff40000001c8f15
[   19.776422][  T316] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000988c2bc
[   19.776624][  T316] RBP: ff11000007c21000 R08: 1fe2200001311859 R09: ff1100000f6b0b80
[   19.776882][  T316] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   19.777083][  T316] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000007c21000
[   19.777342][  T316] FS:  00007f60f872b840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   19.777580][  T316] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.777748][  T316] CR2: 00007f9a897cb574 CR3: 000000000f51f002 CR4: 0000000000771ef0
[   19.777951][  T316] PKRU: 55555554
[   19.778053][  T316] Call Trace:
[   19.778206][  T316]  <TASK>
[   19.778276][  T316]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.778414][  T316]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.778549][  T316]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.778652][  T316]  register_netdevice (net/core/dev.c:11488)
[   19.778790][  T316]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.778958][  T316]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.779095][  T316]  register_netdev (net/core/dev.c:11552)
[   19.779285][  T316]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   19.779422][  T316]  ops_init (net/core/net_namespace.c:137)
[   19.779526][  T316]  setup_net (net/core/net_namespace.c:446)
[   19.779628][  T316]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.779761][  T316]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.779898][  T316]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.780036][  T316]  copy_net_ns (net/core/net_namespace.c:579)
[   19.780226][  T316]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.780367][  T316]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.780505][  T316]  ksys_unshare (kernel/fork.c:3243)
[   19.780639][  T316]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   19.780774][  T316]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.780909][  T316]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   19.781045][  T316]  ? __ia32_sys_open (fs/open.c:1374)
[   19.781239][  T316]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.781377][  T316]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.781512][  T316]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.781645][  T316]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.781781][  T316]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.781917][  T316]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.782084][  T316] RIP: 0033:0x7f60f89edbcb
[   19.782281][  T316] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.782762][  T316] RSP: 002b:00007fff99ac2218 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.782967][  T316] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f60f89edbcb
[   19.783227][  T316] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   19.783431][  T316] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   19.783632][  T316] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fff99ac4440
[   19.783835][  T316] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff99ac4867
| [   19.813808][  T317] ------------[ cut here ]------------
| [   19.813973][  T317] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/317
| [   19.814225][  T317] Modules linked in:
| [   19.814611][  T317] Tainted: [W]=WARN
[   19.814711][  T317] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.814880][  T317] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.815054][  T317] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.815539][  T317] RSP: 0018:ffa0000000c37020 EFLAGS: 00010286
[   19.815708][  T317] RAX: 00000000ffffffa6 RBX: ff1100000c675380 RCX: 1ff4000000186dca
[   19.815906][  T317] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c67543c
[   19.816105][  T317] RBP: ff1100000ebc4000 R08: 1fe22000018cea89 R09: ff1100000fc62e58
[   19.816314][  T317] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[   19.816527][  T317] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   19.816728][  T317] FS:  00007fc07836a840(0000) GS:ff110000b3c47000(0000) knlGS:0000000000000000
[   19.816963][  T317] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.817132][  T317] CR2: 000000003c597988 CR3: 000000000f6b9005 CR4: 0000000000771ef0
[   19.817342][  T317] PKRU: 55555554
[   19.817442][  T317] Call Trace:
[   19.817543][  T317]  <TASK>
[   19.817612][  T317]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.817748][  T317]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.817851][  T317]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   19.817989][  T317]  __dev_notify_flags (net/core/dev.c:9787)
[   19.818126][  T317]  ? netif_change_name (net/core/dev.c:1495)
[   19.818265][  T317]  ? __dev_change_flags (net/core/dev.c:9752)
[   19.818402][  T317]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   19.818535][  T317]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.818671][  T317]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   19.818809][  T317]  netif_change_flags (net/core/dev.c:9820)
[   19.818946][  T317]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   19.819081][  T317]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   19.819224][  T317]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   19.819363][  T317]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   19.819529][  T317]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   19.819663][  T317]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   19.819797][  T317]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   19.819933][  T317]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   19.820069][  T317]  ? __kernel_text_address (kernel/extable.c:79)
[   19.820209][  T317]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   19.820349][  T317]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.820483][  T317]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   19.820618][  T317]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.820753][  T317]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.820887][  T317]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.821021][  T317]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.821770][  T317]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   19.821917][  T317]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   19.822055][  T317]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   19.822264][  T317]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   19.822403][  T317]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   19.822540][  T317]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   19.822680][  T317]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   19.822817][  T317]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.822951][  T317]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.823086][  T317]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   19.823325][  T317]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   19.823461][  T317]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.823598][  T317]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.823734][  T317]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.823871][  T317]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   19.824006][  T317]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.824219][  T317]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   19.824360][  T317]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   19.824495][  T317]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   19.824628][  T317]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   19.824761][  T317]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   19.824898][  T317]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.825031][  T317]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.825182][  T317]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   19.825317][  T317]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   19.825458][  T317]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   19.825595][  T317]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   19.825729][  T317]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   19.825867][  T317]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   19.826003][  T317]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   19.826139][  T317]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   19.826280][  T317]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   19.826418][  T317]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   19.826555][  T317]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   19.826692][  T317]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   19.826830][  T317]  ? copy_msghdr_from_user (net/socket.c:2635)
[   19.826968][  T317]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   19.827136][  T317]  ? move_addr_to_kernel (net/socket.c:258)
[   19.827277][  T317]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   19.827417][  T317]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   19.827553][  T317]  ___sys_sendmsg (net/socket.c:2752)
[   19.827687][  T317]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   19.827856][  T317]  ? copy_msghdr_from_user (net/socket.c:2603)
[   19.828004][  T317]  __sys_sendmsg (net/socket.c:2784)
[   19.828146][  T317]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   19.828281][  T317]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   19.828453][  T317]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   19.828588][  T317]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.828724][  T317]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.828858][  T317]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.828992][  T317]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.829127][  T317]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.829299][  T317] RIP: 0033:0x7fc0785a408e
[   19.829445][  T317] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   19.829924][  T317] RSP: 002b:00007ffc05a17530 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   19.830128][  T317] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fc0785a408e
[   19.830338][  T317] RDX: 0000000000000000 RSI: 00007ffc05a175e0 RDI: 0000000000000005
[   19.830539][  T317] RBP: 00007ffc05a17540 R08: 0000000000000000 R09: 0000000000000000
[   19.830740][  T317] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ea1e
[   19.830943][  T317] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc05a17cb0
| [   20.015927][  T325] ------------[ cut here ]------------
| [   20.016103][  T325] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/325
| [   20.016358][  T325] Modules linked in:
| [   20.016740][  T325] Tainted: [W]=WARN
[   20.016842][  T325] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.017013][  T325] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.017196][  T325] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.017680][  T325] RSP: 0018:ffa0000000c27a80 EFLAGS: 00010286
[   20.017851][  T325] RAX: 00000000ffffffa6 RBX: ff1100000988d700 RCX: 1ff4000000184f16
[   20.018056][  T325] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000988d7bc
[   20.018266][  T325] RBP: ff1100000a531000 R08: 1fe2200001311af9 R09: ff1100000f3aae80
[   20.018473][  T325] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   20.018676][  T325] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a531000
[   20.018882][  T325] FS:  00007f4f4cd6d840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   20.019121][  T325] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.019296][  T325] CR2: 00007f4f4cf6ec20 CR3: 000000000e55f004 CR4: 0000000000771ef0
[   20.019503][  T325] PKRU: 55555554
[   20.019606][  T325] Call Trace:
[   20.019708][  T325]  <TASK>
[   20.019780][  T325]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.019916][  T325]  ? notifier_call_chain (kernel/notifier.c:85)
[   20.020052][  T325]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.020162][  T325]  register_netdevice (net/core/dev.c:11488)
[   20.020305][  T325]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   20.020479][  T325]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   20.020616][  T325]  register_netdev (net/core/dev.c:11552)
[   20.020752][  T325]  loopback_net_init (drivers/net/loopback.c:218)
[   20.020890][  T325]  ops_init (net/core/net_namespace.c:137)
[   20.020996][  T325]  setup_net (net/core/net_namespace.c:446)
[   20.021099][  T325]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   20.021241][  T325]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   20.021382][  T325]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   20.021520][  T325]  copy_net_ns (net/core/net_namespace.c:579)
[   20.021657][  T325]  create_new_namespaces (kernel/nsproxy.c:132)
[   20.021797][  T325]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   20.021934][  T325]  ksys_unshare (kernel/fork.c:3243)
[   20.022070][  T325]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   20.022212][  T325]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   20.022351][  T325]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   20.022488][  T325]  ? __ia32_sys_open (fs/open.c:1374)
[   20.022625][  T325]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   20.022760][  T325]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   20.022896][  T325]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.023030][  T325]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.023225][  T325]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.023365][  T325]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.023532][  T325] RIP: 0033:0x7f4f4d02fbcb
[   20.023674][  T325] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   20.024213][  T325] RSP: 002b:00007fffa718bdd8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   20.024422][  T325] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f4f4d02fbcb
[   20.024624][  T325] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   20.024828][  T325] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   20.025030][  T325] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffa718e000
[   20.025317][  T325] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffa718f865
| [   20.029482][  T325] ------------[ cut here ]------------
| [   20.029630][  T325] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/325
| [   20.029864][  T325] Modules linked in:
| [   20.030243][  T325] Tainted: [W]=WARN
[   20.030350][  T325] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.030517][  T325] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.030691][  T325] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.031179][  T325] RSP: 0018:ffa0000000c27918 EFLAGS: 00010286
[   20.031354][  T325] RAX: 00000000ffffffa6 RBX: ff11000004c24c80 RCX: 1ff4000000184ee9
[   20.031556][  T325] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000004c24d3c
[   20.031757][  T325] RBP: ff1100000e49c000 R08: 1fe22000009849a9 R09: ff1100000f3aae80
[   20.031960][  T325] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   20.032340][  T325] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e49c000
[   20.032547][  T325] FS:  00007f4f4cd6d840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   20.032782][  T325] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.032952][  T325] CR2: 00007f4f4cf6ec20 CR3: 000000000e55f004 CR4: 0000000000771ef0
[   20.033158][  T325] PKRU: 55555554
[   20.033260][  T325] Call Trace:
[   20.033365][  T325]  <TASK>
[   20.033434][  T325]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.033570][  T325]  ? notifier_call_chain (kernel/notifier.c:85)
[   20.033705][  T325]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.033807][  T325]  register_netdevice (net/core/dev.c:11488)
[   20.033945][  T325]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   20.034112][  T325]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   20.034255][  T325]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   20.034394][  T325]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   20.034530][  T325]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   20.034667][  T325]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   20.034802][  T325]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   20.034940][  T325]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   20.035076][  T325]  ops_init (net/core/net_namespace.c:137)
[   20.035185][  T325]  setup_net (net/core/net_namespace.c:446)
[   20.035287][  T325]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   20.035425][  T325]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   20.035560][  T325]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   20.035697][  T325]  copy_net_ns (net/core/net_namespace.c:579)
[   20.035833][  T325]  create_new_namespaces (kernel/nsproxy.c:132)
[   20.035971][  T325]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   20.036107][  T325]  ksys_unshare (kernel/fork.c:3243)
[   20.036248][  T325]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   20.036389][  T325]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   20.036524][  T325]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   20.036660][  T325]  ? __ia32_sys_open (fs/open.c:1374)
[   20.036798][  T325]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   20.036933][  T325]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   20.037069][  T325]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.037208][  T325]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.037347][  T325]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.037482][  T325]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.037649][  T325] RIP: 0033:0x7f4f4d02fbcb
[   20.037788][  T325] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   20.038276][  T325] RSP: 002b:00007fffa718bdd8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   20.038483][  T325] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f4f4d02fbcb
[   20.038685][  T325] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   20.038887][  T325] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   20.039088][  T325] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffa718e000
[   20.039292][  T325] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffa718f865
| [   20.043634][  T325] ------------[ cut here ]------------
| [   20.043869][  T325] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/325
| [   20.044109][  T325] Modules linked in:
| [   20.044593][  T325] Tainted: [W]=WARN
[   20.044697][  T325] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.044870][  T325] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.045148][  T325] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.045641][  T325] RSP: 0018:ffa0000000c278f8 EFLAGS: 00010286
[   20.045905][  T325] RAX: 00000000ffffffa6 RBX: ff1100000d2b3380 RCX: 1ff4000000184ee5
[   20.046109][  T325] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d2b343c
[   20.046413][  T325] RBP: ff1100000e4ac000 R08: 1fe2200001a56689 R09: ff1100000f3aae80
[   20.046618][  T325] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   20.046820][  T325] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e4ac000
[   20.047115][  T325] FS:  00007f4f4cd6d840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   20.047361][  T325] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.047534][  T325] CR2: 00007f4f4cf6ec20 CR3: 000000000e55f004 CR4: 0000000000771ef0
[   20.047828][  T325] PKRU: 55555554
[   20.047930][  T325] Call Trace:
[   20.048032][  T325]  <TASK>
[   20.048102][  T325]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.048337][  T325]  ? notifier_call_chain (kernel/notifier.c:85)
[   20.048475][  T325]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.048581][  T325]  register_netdevice (net/core/dev.c:11488)
[   20.048720][  T325]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   20.048891][  T325]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   20.049117][  T325]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   20.049257][  T325]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   20.049399][  T325]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   20.049537][  T325]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   20.049763][  T325]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   20.049904][  T325]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   20.050043][  T325]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   20.050187][  T325]  vti_init_net (net/ipv4/ip_vti.c:517)
[   20.050329][  T325]  ops_init (net/core/net_namespace.c:137)
[   20.050435][  T325]  setup_net (net/core/net_namespace.c:446)
[   20.050538][  T325]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   20.050673][  T325]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   20.050898][  T325]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   20.051037][  T325]  copy_net_ns (net/core/net_namespace.c:579)
[   20.051181][  T325]  create_new_namespaces (kernel/nsproxy.c:132)
[   20.051324][  T325]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   20.051552][  T325]  ksys_unshare (kernel/fork.c:3243)
[   20.051690][  T325]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   20.051826][  T325]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   20.051963][  T325]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   20.052195][  T325]  ? __ia32_sys_open (fs/open.c:1374)
[   20.052338][  T325]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   20.052476][  T325]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   20.052612][  T325]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.052837][  T325]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.052973][  T325]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.053109][  T325]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.053287][  T325] RIP: 0033:0x7f4f4d02fbcb
[   20.053526][  T325] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   20.054108][  T325] RSP: 002b:00007fffa718bdd8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   20.054323][  T325] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f4f4d02fbcb
[   20.054530][  T325] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   20.054824][  T325] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   20.055028][  T325] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffa718e000
[   20.055236][  T325] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffa718f865
| [   20.059840][  T325] ------------[ cut here ]------------
| [   20.059987][  T325] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/325
| [   20.060315][  T325] Modules linked in:
| [   20.060696][  T325] Tainted: [W]=WARN
[   20.060798][  T325] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.061055][  T325] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.061237][  T325] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.061826][  T325] RSP: 0018:ffa0000000c27a78 EFLAGS: 00010286
[   20.061996][  T325] RAX: 00000000ffffffa6 RBX: ff1100000d1a3c40 RCX: 1ff4000000184f15
[   20.062204][  T325] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d1a3cfc
[   20.062409][  T325] RBP: ff1100000e504000 R08: 1fe2200001a347a1 R09: ff1100000f3aae80
[   20.062609][  T325] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   20.062899][  T325] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e504000
[   20.063104][  T325] FS:  00007f4f4cd6d840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   20.063441][  T325] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.063611][  T325] CR2: 00007f4f4cf6ec20 CR3: 000000000e55f004 CR4: 0000000000771ef0
[   20.063817][  T325] PKRU: 55555554
[   20.063917][  T325] Call Trace:
[   20.064104][  T325]  <TASK>
[   20.064180][  T325]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.064317][  T325]  ? notifier_call_chain (kernel/notifier.c:85)
[   20.064458][  T325]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.064561][  T325]  register_netdevice (net/core/dev.c:11488)
[   20.064785][  T325]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   20.064953][  T325]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.065091][  T325]  register_netdev (net/core/dev.c:11552)
[   20.065232][  T325]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   20.065462][  T325]  ops_init (net/core/net_namespace.c:137)
[   20.065565][  T325]  setup_net (net/core/net_namespace.c:446)
[   20.065667][  T325]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   20.065802][  T325]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   20.066023][  T325]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   20.066165][  T325]  copy_net_ns (net/core/net_namespace.c:579)
[   20.066301][  T325]  create_new_namespaces (kernel/nsproxy.c:132)
[   20.066446][  T325]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   20.066668][  T325]  ksys_unshare (kernel/fork.c:3243)
[   20.066805][  T325]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   20.066941][  T325]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   20.067077][  T325]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   20.067307][  T325]  ? __ia32_sys_open (fs/open.c:1374)
[   20.067447][  T325]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   20.067585][  T325]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   20.067720][  T325]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.067940][  T325]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.068078][  T325]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.068219][  T325]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.068389][  T325] RIP: 0033:0x7f4f4d02fbcb
[   20.068620][  T325] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   20.069101][  T325] RSP: 002b:00007fffa718bdd8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   20.069403][  T325] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f4f4d02fbcb
[   20.069604][  T325] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   20.069896][  T325] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   20.070098][  T325] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffa718e000
[   20.070305][  T325] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffa718f865
| [   20.075028][  T325] ------------[ cut here ]------------
| [   20.075184][  T325] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/325
| [   20.075421][  T325] Modules linked in:
| [   20.075897][  T325] Tainted: [W]=WARN
[   20.075999][  T325] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.076264][  T325] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.076441][  T325] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.077013][  T325] RSP: 0018:ffa0000000c27a68 EFLAGS: 00010286
[   20.077188][  T325] RAX: 00000000ffffffa6 RBX: ff11000004c25a80 RCX: 1ff4000000184f13
[   20.077393][  T325] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000004c25b3c
[   20.077684][  T325] RBP: ff1100000e469000 R08: 1fe2200000984b69 R09: ff1100000f3aae80
[   20.077887][  T325] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   20.078182][  T325] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e469000
[   20.078388][  T325] FS:  00007f4f4cd6d840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   20.078622][  T325] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.078880][  T325] CR2: 00007f4f4cf6ec20 CR3: 000000000e55f004 CR4: 0000000000771ef0
[   20.079084][  T325] PKRU: 55555554
[   20.079189][  T325] Call Trace:
[   20.079289][  T325]  <TASK>
[   20.079475][  T325]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.079616][  T325]  ? notifier_call_chain (kernel/notifier.c:85)
[   20.079749][  T325]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.079848][  T325]  register_netdevice (net/core/dev.c:11488)
[   20.080068][  T325]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   20.080248][  T325]  register_netdev (net/core/dev.c:11552)
[   20.080386][  T325]  sit_init_net (net/ipv6/sit.c:1860)
[   20.080523][  T325]  ops_init (net/core/net_namespace.c:137)
[   20.080712][  T325]  setup_net (net/core/net_namespace.c:446)
[   20.080815][  T325]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   20.080951][  T325]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   20.081086][  T325]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   20.081314][  T325]  copy_net_ns (net/core/net_namespace.c:579)
[   20.081454][  T325]  create_new_namespaces (kernel/nsproxy.c:132)
[   20.081592][  T325]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   20.081727][  T325]  ksys_unshare (kernel/fork.c:3243)
[   20.081863][  T325]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   20.082085][  T325]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   20.082223][  T325]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   20.082364][  T325]  ? __ia32_sys_open (fs/open.c:1374)
[   20.082501][  T325]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   20.082720][  T325]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   20.082855][  T325]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.082990][  T325]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.083124][  T325]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.083264][  T325]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.083436][  T325] RIP: 0033:0x7f4f4d02fbcb
[   20.083577][  T325] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   20.084157][  T325] RSP: 002b:00007fffa718bdd8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   20.084450][  T325] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f4f4d02fbcb
[   20.084647][  T325] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   20.084870][  T325] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   20.085170][  T325] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffa718e000
[   20.085369][  T325] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffa718f865
| [   20.090937][  T325] ------------[ cut here ]------------
| [   20.091078][  T325] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/325
| [   20.091317][  T325] Modules linked in:
| [   20.091702][  T325] Tainted: [W]=WARN
[   20.091808][  T325] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.091980][  T325] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.092159][  T325] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.092643][  T325] RSP: 0018:ffa0000000c27a78 EFLAGS: 00010286
[   20.092814][  T325] RAX: 00000000ffffffa6 RBX: ff1100000b833000 RCX: 1ff4000000184f15
[   20.093016][  T325] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b8330bc
[   20.093224][  T325] RBP: ff1100000fddc000 R08: 1fe2200001706619 R09: ff1100000f3aae80
[   20.093430][  T325] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   20.093633][  T325] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fddc000
[   20.093837][  T325] FS:  00007f4f4cd6d840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   20.094075][  T325] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.094250][  T325] CR2: 00007f4f4cf6ec20 CR3: 000000000e55f004 CR4: 0000000000771ef0
[   20.094455][  T325] PKRU: 55555554
[   20.094558][  T325] Call Trace:
[   20.094658][  T325]  <TASK>
[   20.094728][  T325]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.094862][  T325]  ? notifier_call_chain (kernel/notifier.c:85)
[   20.094999][  T325]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.095103][  T325]  register_netdevice (net/core/dev.c:11488)
[   20.095246][  T325]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   20.095419][  T325]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.095556][  T325]  register_netdev (net/core/dev.c:11552)
[   20.095691][  T325]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   20.095828][  T325]  ops_init (net/core/net_namespace.c:137)
[   20.095932][  T325]  setup_net (net/core/net_namespace.c:446)
[   20.096036][  T325]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   20.096171][  T325]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   20.096303][  T325]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   20.096441][  T325]  copy_net_ns (net/core/net_namespace.c:579)
[   20.096573][  T325]  create_new_namespaces (kernel/nsproxy.c:132)
[   20.096731][  T325]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   20.096868][  T325]  ksys_unshare (kernel/fork.c:3243)
[   20.096999][  T325]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   20.097131][  T325]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   20.097326][  T325]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   20.097459][  T325]  ? __ia32_sys_open (fs/open.c:1374)
[   20.097593][  T325]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   20.097725][  T325]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   20.097857][  T325]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.097990][  T325]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.098123][  T325]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.098309][  T325]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.098477][  T325] RIP: 0033:0x7f4f4d02fbcb
[   20.098613][  T325] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   20.099081][  T325] RSP: 002b:00007fffa718bdd8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   20.099338][  T325] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f4f4d02fbcb
[   20.099590][  T325] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   20.099786][  T325] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   20.099992][  T325] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffa718e000
[   20.100242][  T325] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffa718f865
| [   20.129139][  T326] ------------[ cut here ]------------
| [   20.129291][  T326] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/326
| [   20.129524][  T326] Modules linked in:
| [   20.129893][  T326] Tainted: [W]=WARN
[   20.129991][  T326] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.130166][  T326] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.130347][  T326] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.130860][  T326] RSP: 0018:ffa0000000a97020 EFLAGS: 00010286
[   20.131024][  T326] RAX: 00000000ffffffa6 RBX: ff1100000b832740 RCX: 1ff4000000152dca
[   20.131224][  T326] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b8327fc
[   20.131427][  T326] RBP: ff1100000a531000 R08: 1fe2200001706501 R09: ff1100000f3ad158
[   20.131621][  T326] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[   20.131814][  T326] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   20.132011][  T326] FS:  00007f57a169b840(0000) GS:ff110000b3c47000(0000) knlGS:0000000000000000
[   20.132244][  T326] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.132413][  T326] CR2: 00000000148f7988 CR3: 000000000f602005 CR4: 0000000000771ef0
[   20.132610][  T326] PKRU: 55555554
[   20.132707][  T326] Call Trace:
[   20.132804][  T326]  <TASK>
[   20.132871][  T326]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.133005][  T326]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.133105][  T326]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   20.133242][  T326]  __dev_notify_flags (net/core/dev.c:9787)
[   20.133378][  T326]  ? netif_change_name (net/core/dev.c:1495)
[   20.133509][  T326]  ? __dev_change_flags (net/core/dev.c:9752)
[   20.133642][  T326]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   20.133773][  T326]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.133904][  T326]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   20.134037][  T326]  netif_change_flags (net/core/dev.c:9820)
[   20.134255][  T326]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   20.134391][  T326]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   20.134525][  T326]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   20.134659][  T326]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   20.134823][  T326]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   20.134954][  T326]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   20.135083][  T326]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   20.135280][  T326]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   20.135468][  T326]  ? __kernel_text_address (kernel/extable.c:79)
[   20.135601][  T326]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.135734][  T326]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.135865][  T326]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   20.135996][  T326]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.136127][  T326]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   20.136351][  T326]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.136482][  T326]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.136613][  T326]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   20.136744][  T326]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   20.136875][  T326]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   20.137005][  T326]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   20.137137][  T326]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   20.137362][  T326]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   20.137497][  T326]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   20.137630][  T326]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.137761][  T326]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.137891][  T326]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   20.138020][  T326]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   20.138216][  T326]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.138354][  T326]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.138484][  T326]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.138615][  T326]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   20.138746][  T326]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.138877][  T326]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   20.139007][  T326]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   20.139136][  T326]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   20.139270][  T326]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   20.139402][  T326]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.139537][  T326]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.139667][  T326]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.139797][  T326]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   20.139927][  T326]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   20.140056][  T326]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   20.140194][  T326]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   20.140330][  T326]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   20.140463][  T326]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   20.140594][  T326]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   20.140725][  T326]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.140856][  T326]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   20.140986][  T326]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   20.141117][  T326]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   20.141254][  T326]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   20.141390][  T326]  ? copy_msghdr_from_user (net/socket.c:2635)
[   20.141523][  T326]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   20.141683][  T326]  ? move_addr_to_kernel (net/socket.c:258)
[   20.141815][  T326]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   20.141945][  T326]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   20.142079][  T326]  ___sys_sendmsg (net/socket.c:2752)
[   20.142213][  T326]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   20.142380][  T326]  ? copy_msghdr_from_user (net/socket.c:2603)
[   20.142524][  T326]  __sys_sendmsg (net/socket.c:2784)
[   20.142655][  T326]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   20.142785][  T326]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   20.142951][  T326]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   20.143082][  T326]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.143219][  T326]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.143352][  T326]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.143483][  T326]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.143614][  T326]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.143775][  T326] RIP: 0033:0x7f57a18d508e
[   20.143912][  T326] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   20.144382][  T326] RSP: 002b:00007ffd91ce1960 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   20.144580][  T326] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f57a18d508e
[   20.144777][  T326] RDX: 0000000000000000 RSI: 00007ffd91ce1a10 RDI: 0000000000000005
[   20.144974][  T326] RBP: 00007ffd91ce1970 R08: 0000000000000000 R09: 0000000000000000
[   20.145174][  T326] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ea1e
[   20.145370][  T326] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd91ce20e0
| [   20.257213][  T329] ------------[ cut here ]------------
| [   20.257430][  T329] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/329
| [   20.257718][  T329] Modules linked in:
| [   20.258748][  T329] Tainted: [W]=WARN
[   20.258901][  T329] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.259129][  T329] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.259377][  T329] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.259918][  T329] RSP: 0018:ffa0000000ec6e30 EFLAGS: 00010286
[   20.260157][  T329] RAX: 00000000ffffffa6 RBX: ff1100000d22f540 RCX: 1ff40000001d8d8c
[   20.260419][  T329] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d22f5fc
[   20.260673][  T329] RBP: ff11000005149000 R08: 1fe2200001a45ec1 R09: ff110000101c8b80
[   20.260928][  T329] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   20.261194][  T329] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000557a704
[   20.261460][  T329] FS:  00007fb8cf7dc840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   20.261751][  T329] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.261972][  T329] CR2: 00000000004eb188 CR3: 000000000e1cb002 CR4: 0000000000771ef0
[   20.262244][  T329] PKRU: 55555554
[   20.262402][  T329] Call Trace:
[   20.262553][  T329]  <TASK>
[   20.262673][  T329]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.262864][  T329]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.263018][  T329]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[   20.263254][  T329]  __dev_notify_flags (net/core/dev.c:9787)
[   20.263452][  T329]  ? netif_change_name (net/core/dev.c:1495)
[   20.263641][  T329]  ? rtnl_newlink (net/core/rtnetlink.c:4150)
[   20.263828][  T329]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   20.264015][  T329]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   20.264216][  T329]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[   20.264414][  T329]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.264603][  T329]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   20.264794][  T329]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   20.264980][  T329]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   20.265179][  T329]  ? queue_delayed_work_on (kernel/workqueue.c:2616 (discriminator 6))
[   20.265371][  T329]  veth_newlink (drivers/net/veth.c:1871)
[   20.265560][  T329]  ? veth_poll_controller (drivers/net/veth.c:1470)
[   20.265744][  T329]  ? kasan_save_stack (mm/kasan/common.c:57)
[   20.265931][  T329]  ? kasan_save_track (mm/kasan/common.c:78)
[   20.266118][  T329]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   20.266345][  T329]  ? __kvmalloc_node_noprof (mm/slub.c:5296 mm/slub.c:6832)
[   20.266533][  T329]  ? alloc_netdev_mqs (net/core/dev.c:12129 (discriminator 7))
[   20.266722][  T329]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   20.266910][  T329]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   20.267099][  T329]  ? rtnl_create_link (net/core/rtnetlink.c:3720)
[   20.267300][  T329]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   20.267495][  T329]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   20.267682][  T329]  ? __dev_get_by_name (net/core/dev.c:883)
[   20.267869][  T329]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   20.268062][  T329]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   20.268266][  T329]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   20.268466][  T329]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.268654][  T329]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.268840][  T329]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   20.269026][  T329]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   20.269225][  T329]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.269424][  T329]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.269614][  T329]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   20.269802][  T329]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   20.269990][  T329]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   20.270189][  T329]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   20.270383][  T329]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.270575][  T329]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.270761][  T329]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.270951][  T329]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   20.271136][  T329]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   20.271343][  T329]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   20.271535][  T329]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   20.271720][  T329]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   20.271909][  T329]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   20.272100][  T329]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   20.272299][  T329]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.272496][  T329]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   20.272686][  T329]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   20.272873][  T329]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   20.273063][  T329]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   20.273264][  T329]  ? copy_msghdr_from_user (net/socket.c:2635)
[   20.273461][  T329]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   20.273683][  T329]  ? move_addr_to_kernel (net/socket.c:258)
[   20.273870][  T329]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.274057][  T329]  ? rcu_read_unlock (./include/linux/rcupdate.h:867 (discriminator 5))
[   20.274257][  T329]  ___sys_sendmsg (net/socket.c:2752)
[   20.274452][  T329]  ? wp_page_copy (./include/linux/pgtable.h:117 mm/memory.c:3976)
[   20.274643][  T329]  ? copy_msghdr_from_user (net/socket.c:2603)
[   20.274835][  T329]  ? do_wp_page (./include/linux/pgtable.h:117 mm/memory.c:4331)
[   20.275026][  T329]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   20.275229][  T329]  __sys_sendmsg (net/socket.c:2784)
[   20.275426][  T329]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   20.275619][  T329]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.275808][  T329]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.275997][  T329]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.276194][  T329]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.276390][  T329]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.276580][  T329]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.276801][  T329] RIP: 0033:0x7fb8cfa1608e
[   20.276993][  T329] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   20.277549][  T329] RSP: 002b:00007ffc350bea30 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   20.277807][  T329] RAX: ffffffffffffffda RBX: 00007ffc350bf1e0 RCX: 00007fb8cfa1608e
[   20.278061][  T329] RDX: 0000000000000000 RSI: 00007ffc350beae0 RDI: 0000000000000005
[   20.278331][  T329] RBP: 00007ffc350bea40 R08: 0000000000000000 R09: 0000000000000000
[   20.278589][  T329] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ea1e
[   20.278845][  T329] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc350bf1b8
| [   20.294513][  T329] ------------[ cut here ]------------
| [   20.294725][  T329] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/329
| [   20.295010][  T329] Modules linked in:
| [   20.295574][  T329] Tainted: [W]=WARN
[   20.295723][  T329] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.295941][  T329] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.296182][  T329] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.296721][  T329] RSP: 0018:ffa0000000ec71b0 EFLAGS: 00010286
[   20.296942][  T329] RAX: 00000000ffffffa6 RBX: ff1100000d03e900 RCX: 1ff40000001d8dfc
[   20.297207][  T329] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d03e9bc
[   20.297466][  T329] RBP: ff1100000f5cc000 R08: 1fe2200001a07d39 R09: ff110000101c8b80
[   20.297717][  T329] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   20.297971][  T329] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffb6403b20
[   20.298241][  T329] FS:  00007fb8cf7dc840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   20.298537][  T329] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.298759][  T329] CR2: 00000000004eb188 CR3: 000000000e1cb002 CR4: 0000000000771ef0
[   20.299013][  T329] PKRU: 55555554
[   20.299176][  T329] Call Trace:
[   20.299332][  T329]  <TASK>
[   20.299452][  T329]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.299642][  T329]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.299798][  T329]  __dev_notify_flags (net/core/dev.c:9787)
[   20.299984][  T329]  ? netif_change_name (net/core/dev.c:1495)
[   20.300182][  T329]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   20.300370][  T329]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   20.300558][  T329]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   20.300746][  T329]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   20.300934][  T329]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   20.301121][  T329]  ? __dev_get_by_name (net/core/dev.c:883)
[   20.301328][  T329]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   20.301520][  T329]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   20.301710][  T329]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   20.301897][  T329]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.302081][  T329]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.302281][  T329]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   20.302472][  T329]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   20.302659][  T329]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.302850][  T329]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.303037][  T329]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   20.303235][  T329]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   20.303429][  T329]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   20.303614][  T329]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   20.303798][  T329]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.303985][  T329]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.304184][  T329]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.304380][  T329]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   20.304567][  T329]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   20.304755][  T329]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   20.304943][  T329]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   20.305127][  T329]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   20.305335][  T329]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   20.305525][  T329]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   20.305710][  T329]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.305897][  T329]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   20.306083][  T329]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   20.306283][  T329]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   20.306475][  T329]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   20.306661][  T329]  ? copy_msghdr_from_user (net/socket.c:2635)
[   20.306847][  T329]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   20.307066][  T329]  ? move_addr_to_kernel (net/socket.c:258)
[   20.307263][  T329]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.307458][  T329]  ? rcu_read_unlock (./include/linux/rcupdate.h:867 (discriminator 5))
[   20.307645][  T329]  ___sys_sendmsg (net/socket.c:2752)
[   20.307830][  T329]  ? wp_page_copy (./include/linux/pgtable.h:117 mm/memory.c:3976)
[   20.308018][  T329]  ? copy_msghdr_from_user (net/socket.c:2603)
[   20.308221][  T329]  ? do_wp_page (./include/linux/pgtable.h:117 mm/memory.c:4331)
[   20.308422][  T329]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   20.308613][  T329]  __sys_sendmsg (net/socket.c:2784)
[   20.308801][  T329]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   20.308990][  T329]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.309188][  T329]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.309384][  T329]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.309572][  T329]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.309758][  T329]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.309947][  T329]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.310178][  T329] RIP: 0033:0x7fb8cfa1608e
[   20.310375][  T329] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   20.310910][  T329] RSP: 002b:00007ffc350bea30 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   20.311179][  T329] RAX: ffffffffffffffda RBX: 00007ffc350bf1e0 RCX: 00007fb8cfa1608e
[   20.311435][  T329] RDX: 0000000000000000 RSI: 00007ffc350beae0 RDI: 0000000000000005
[   20.311688][  T329] RBP: 00007ffc350bea40 R08: 0000000000000000 R09: 0000000000000000
[   20.311940][  T329] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ea1e
[   20.312209][  T329] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc350bf1b8
| [   20.596016][  T338] ------------[ cut here ]------------
| [   20.596193][  T338] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/338
| [   20.596430][  T338] Modules linked in:
| [   20.596806][  T338] Tainted: [W]=WARN
[   20.596906][  T338] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.597074][  T338] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.597256][  T338] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.597803][  T338] RSP: 0018:ffa0000000f47020 EFLAGS: 00010286
[   20.597970][  T338] RAX: 00000000ffffffa6 RBX: ff1100000be56900 RCX: 1ff40000001e8dca
[   20.598170][  T338] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000be569bc
[   20.598369][  T338] RBP: ff1100000f5cc000 R08: 1fe22000017cad39 R09: ff1100000f295158
[   20.598570][  T338] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[   20.598766][  T338] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   20.598962][  T338] FS:  00007fc1ad78b840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   20.599197][  T338] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.599366][  T338] CR2: 0000000025838988 CR3: 000000000e68f003 CR4: 0000000000771ef0
[   20.599563][  T338] PKRU: 55555554
[   20.599662][  T338] Call Trace:
[   20.599760][  T338]  <TASK>
[   20.599829][  T338]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.599963][  T338]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.600092][  T338]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   20.600230][  T338]  __dev_notify_flags (net/core/dev.c:9787)
[   20.600364][  T338]  ? netif_change_name (net/core/dev.c:1495)
[   20.600494][  T338]  ? __dev_change_flags (net/core/dev.c:9752)
[   20.600623][  T338]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   20.600753][  T338]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.600885][  T338]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   20.601017][  T338]  netif_change_flags (net/core/dev.c:9820)
[   20.601781][  T338]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   20.601917][  T338]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   20.602049][  T338]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   20.602188][  T338]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   20.602357][  T338]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   20.602492][  T338]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   20.602624][  T338]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   20.602752][  T338]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   20.602884][  T338]  ? __kernel_text_address (kernel/extable.c:79)
[   20.603014][  T338]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.603152][  T338]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.603281][  T338]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   20.603417][  T338]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.603548][  T338]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   20.603679][  T338]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.603810][  T338]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.603941][  T338]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   20.604073][  T338]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   20.604211][  T338]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   20.604344][  T338]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   20.604475][  T338]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   20.604607][  T338]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   20.604740][  T338]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   20.604873][  T338]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.605004][  T338]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.605136][  T338]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   20.605273][  T338]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   20.605406][  T338]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.605539][  T338]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.605668][  T338]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.605801][  T338]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   20.605932][  T338]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.606065][  T338]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   20.606204][  T338]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   20.606339][  T338]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   20.606472][  T338]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   20.606602][  T338]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.606735][  T338]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.606865][  T338]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.606999][  T338]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   20.607132][  T338]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   20.607270][  T338]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   20.607411][  T338]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   20.607539][  T338]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   20.607673][  T338]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   20.607804][  T338]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   20.607935][  T338]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.608066][  T338]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   20.608202][  T338]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   20.608337][  T338]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   20.608469][  T338]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   20.608599][  T338]  ? copy_msghdr_from_user (net/socket.c:2635)
[   20.608731][  T338]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   20.608892][  T338]  ? move_addr_to_kernel (net/socket.c:258)
[   20.609024][  T338]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   20.609159][  T338]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   20.609294][  T338]  ___sys_sendmsg (net/socket.c:2752)
[   20.609427][  T338]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   20.609589][  T338]  ? copy_msghdr_from_user (net/socket.c:2603)
[   20.609734][  T338]  __sys_sendmsg (net/socket.c:2784)
[   20.609864][  T338]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   20.609996][  T338]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   20.610166][  T338]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   20.610297][  T338]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.610430][  T338]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.610560][  T338]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.610695][  T338]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.610827][  T338]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.610989][  T338] RIP: 0033:0x7fc1ad9c508e
[   20.611127][  T338] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   20.611604][  T338] RSP: 002b:00007ffd196096d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   20.611801][  T338] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fc1ad9c508e
[   20.611995][  T338] RDX: 0000000000000000 RSI: 00007ffd19609780 RDI: 0000000000000005
[   20.612198][  T338] RBP: 00007ffd196096e0 R08: 0000000000000000 R09: 0000000000000000
[   20.612397][  T338] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ea1e
[   20.612593][  T338] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd19609e58
| [   20.642676][  T339] ------------[ cut here ]------------
| [   20.642839][  T339] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/339
| [   20.643068][  T339] Modules linked in:
| [   20.643452][  T339] Tainted: [W]=WARN
[   20.643551][  T339] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.643721][  T339] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.643891][  T339] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.644370][  T339] RSP: 0018:ffa0000000f57020 EFLAGS: 00010286
[   20.644537][  T339] RAX: 00000000ffffffa6 RBX: ff1100000d1a31c0 RCX: 1ff40000001eadca
[   20.644738][  T339] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d1a327c
[   20.644933][  T339] RBP: ff11000005149000 R08: 1fe2200001a34651 R09: ff110000102a8b58
[   20.645130][  T339] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[   20.645334][  T339] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   20.645533][  T339] FS:  00007f9b5348e840(0000) GS:ff110000b3c47000(0000) knlGS:0000000000000000
[   20.645764][  T339] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.645929][  T339] CR2: 000000000ebf8988 CR3: 000000000e697002 CR4: 0000000000771ef0
[   20.646128][  T339] PKRU: 55555554
[   20.646231][  T339] Call Trace:
[   20.646333][  T339]  <TASK>
[   20.646402][  T339]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.646535][  T339]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.646636][  T339]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   20.646768][  T339]  __dev_notify_flags (net/core/dev.c:9787)
[   20.646901][  T339]  ? netif_change_name (net/core/dev.c:1495)
[   20.647032][  T339]  ? __dev_change_flags (net/core/dev.c:9752)
[   20.647171][  T339]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   20.647301][  T339]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.647437][  T339]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   20.647570][  T339]  netif_change_flags (net/core/dev.c:9820)
[   20.647702][  T339]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   20.647835][  T339]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   20.647970][  T339]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   20.648102][  T339]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   20.648332][  T339]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   20.648463][  T339]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   20.648594][  T339]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   20.648724][  T339]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   20.648857][  T339]  ? __kernel_text_address (kernel/extable.c:79)
[   20.648988][  T339]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.649123][  T339]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.649338][  T339]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   20.649470][  T339]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.649602][  T339]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   20.649732][  T339]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.649864][  T339]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.649996][  T339]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   20.650129][  T339]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   20.650343][  T339]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   20.650559][  T339]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   20.650692][  T339]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   20.650827][  T339]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   20.650963][  T339]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   20.651097][  T339]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.651316][  T339]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.651451][  T339]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   20.651581][  T339]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   20.651710][  T339]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.651842][  T339]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.651971][  T339]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.652101][  T339]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   20.652318][  T339]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.652453][  T339]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   20.652583][  T339]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   20.652712][  T339]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   20.652842][  T339]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   20.652971][  T339]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.653104][  T339]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.653290][  T339]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.653458][  T339]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   20.653591][  T339]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   20.653722][  T339]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   20.653855][  T339]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   20.653985][  T339]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   20.654117][  T339]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   20.654252][  T339]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   20.654388][  T339]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.654520][  T339]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   20.654652][  T339]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   20.654784][  T339]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   20.654915][  T339]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   20.655046][  T339]  ? copy_msghdr_from_user (net/socket.c:2635)
[   20.655182][  T339]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   20.655349][  T339]  ? move_addr_to_kernel (net/socket.c:258)
[   20.655480][  T339]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   20.655610][  T339]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   20.655742][  T339]  ___sys_sendmsg (net/socket.c:2752)
[   20.655872][  T339]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   20.656032][  T339]  ? copy_msghdr_from_user (net/socket.c:2603)
[   20.656181][  T339]  __sys_sendmsg (net/socket.c:2784)
[   20.656312][  T339]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   20.656447][  T339]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   20.656611][  T339]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   20.656742][  T339]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.656873][  T339]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.657003][  T339]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.657134][  T339]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.657269][  T339]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.657434][  T339] RIP: 0033:0x7f9b536c808e
[   20.657572][  T339] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   20.658044][  T339] RSP: 002b:00007ffe4c92c330 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   20.658253][  T339] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f9b536c808e
[   20.658451][  T339] RDX: 0000000000000000 RSI: 00007ffe4c92c3e0 RDI: 0000000000000005
[   20.658645][  T339] RBP: 00007ffe4c92c340 R08: 0000000000000000 R09: 0000000000000000
[   20.658840][  T339] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ea1e
[   20.659036][  T339] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe4c92cab8
| [   20.661274][   T39] ------------[ cut here ]------------
| [   20.661411][   T39] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/39
| [   20.661654][   T39] Modules linked in:
| [   20.662018][   T39] Tainted: [W]=WARN
[   20.662108][   T39] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.662269][   T39] Workqueue: events_unbound linkwatch_event
[   20.662424][   T39] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.662579][   T39] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.663008][   T39] RSP: 0018:ffa00000002bf9e0 EFLAGS: 00010286
[   20.663190][   T39] RAX: 00000000ffffffa6 RBX: ff110000060be900 RCX: 1ff4000000057f02
[   20.663370][   T39] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000060be9bc
[   20.663546][   T39] RBP: ff1100000f5cc000 R08: 1fe2200000c17d39 R09: ff11000001da51a8
[   20.663723][   T39] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000
[   20.663900][   T39] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   20.664077][   T39] FS:  0000000000000000(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   20.664290][   T39] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.664443][   T39] CR2: 00007faefffb3000 CR3: 000000003c54d005 CR4: 0000000000771ef0
[   20.664622][   T39] PKRU: 55555554
[   20.664713][   T39] Call Trace:
[   20.664801][   T39]  <TASK>
[   20.664864][   T39]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.664983][   T39]  ? notifier_call_chain (kernel/notifier.c:85)
[   20.665108][   T39]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.665204][   T39]  netif_state_change (net/core/dev.c:1605)
[   20.665328][   T39]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[   20.665482][   T39]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[   20.665601][   T39]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   20.665721][   T39]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   20.665841][   T39]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   20.665959][   T39]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   20.666084][   T39]  process_one_work (kernel/workqueue.c:3314)
[   20.666214][   T39]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   20.666337][   T39]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.666465][   T39]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   20.666587][   T39]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   20.666705][   T39]  kthread (kernel/kthread.c:436)
[   20.666794][   T39]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   20.666942][   T39]  ? kthread_affine_node (kernel/kthread.c:378)
[   20.667060][   T39]  ret_from_fork (arch/x86/kernel/process.c:158)
[   20.667184][   T39]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   20.667337][   T39]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   20.667456][   T39]  ? kthread_affine_node (kernel/kthread.c:378)
[   20.667575][   T39]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   21.578720][   T36] ------------[ cut here ]------------
| [   21.578912][   T36] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/36
| [   21.579180][   T36] Modules linked in:
| [   21.579576][   T36] Tainted: [W]=WARN
[   21.579673][   T36] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.579826][   T36] Workqueue: events_unbound linkwatch_event
[   21.579986][   T36] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   21.580157][   T36] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   21.580618][   T36] RSP: 0018:ffa000000028f9e0 EFLAGS: 00010286
[   21.580775][   T36] RAX: 00000000ffffffa6 RBX: ff1100000b1b4e40 RCX: 1ff4000000051f02
[   21.580959][   T36] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b1b4efc
[   21.581160][   T36] RBP: ff11000005149000 R08: 1fe22000016369e1 R09: ff11000001d751a8
[   21.581351][   T36] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
[   21.581534][   T36] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   21.581719][   T36] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   21.581936][   T36] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   21.582091][   T36] CR2: 00007ffb0d197808 CR3: 000000003c54d005 CR4: 0000000000771ef0
[   21.582283][   T36] PKRU: 55555554
[   21.582381][   T36] Call Trace:
[   21.582472][   T36]  <TASK>
[   21.582537][   T36]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   21.582663][   T36]  ? notifier_call_chain (kernel/notifier.c:85)
[   21.582789][   T36]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   21.582883][   T36]  netif_state_change (net/core/dev.c:1605)
[   21.583008][   T36]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[   21.583172][   T36]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[   21.583294][   T36]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   21.583422][   T36]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   21.583548][   T36]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   21.583670][   T36]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   21.583799][   T36]  process_one_work (kernel/workqueue.c:3314)
[   21.583937][   T36]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   21.584059][   T36]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   21.584191][   T36]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   21.584330][   T36]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   21.584457][   T36]  kthread (kernel/kthread.c:436)
[   21.584550][   T36]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   21.584703][   T36]  ? kthread_affine_node (kernel/kthread.c:378)
[   21.584828][   T36]  ret_from_fork (arch/x86/kernel/process.c:158)
[   21.584954][   T36]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   21.585108][   T36]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   21.585239][   T36]  ? kthread_affine_node (kernel/kthread.c:378)
[   21.585367][   T36]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   23.658124][   T12] ------------[ cut here ]------------
| [   23.658298][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   23.658563][   T12] Modules linked in:
| [   23.658980][   T12] Tainted: [W]=WARN
[   23.659069][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.659222][   T12] Workqueue: netns cleanup_net
[   23.659356][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   23.659540][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   23.660022][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   23.660187][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c3bfe00 RCX: 1ff4000000018eed
[   23.660368][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c3bfebc
[   23.660569][   T12] RBP: ff11000007c21000 R08: 1fe2200001877fd9 R09: ff11000001aed1d0
[   23.661315][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   23.661507][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   23.661709][   T12] FS:  0000000000000000(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   23.661923][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.662069][   T12] CR2: 000055cac4453ae8 CR3: 000000000e234003 CR4: 0000000000771ef0
[   23.662248][   T12] PKRU: 55555554
[   23.662339][   T12] Call Trace:
[   23.662427][   T12]  <TASK>
[   23.662490][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   23.662640][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   23.662806][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   23.662931][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   23.663072][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   23.663196][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   23.663314][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   23.663439][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   23.663557][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   23.663673][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.663794][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   23.663934][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   23.664055][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   23.664184][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   23.664300][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.664424][   T12]  process_one_work (kernel/workqueue.c:3314)
[   23.664545][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   23.664836][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.664958][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   23.665081][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   23.665203][   T12]  kthread (kernel/kthread.c:436)
[   23.665292][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   23.665440][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   23.665557][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   23.665677][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   23.665843][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   23.665961][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   23.666077][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   23.668518][   T12] ------------[ cut here ]------------
| [   23.668654][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   23.668881][   T12] Modules linked in:
| [   23.669264][   T12] Tainted: [W]=WARN
[   23.669357][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.669504][   T12] Workqueue: netns cleanup_net
[   23.669628][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   23.669784][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   23.670205][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   23.670362][   T12] RAX: 00000000ffffffa6 RBX: ff11000009a44200 RCX: 1ff4000000018eed
[   23.670537][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009a442bc
[   23.670743][   T12] RBP: ff1100000f299000 R08: 1fe2200001348859 R09: ff11000001aed1d0
[   23.670921][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   23.671092][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   23.671270][   T12] FS:  0000000000000000(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   23.671478][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.671622][   T12] CR2: 000055cac4453ae8 CR3: 000000000e234003 CR4: 0000000000771ef0
[   23.671797][   T12] PKRU: 55555554
[   23.671882][   T12] Call Trace:
[   23.671970][   T12]  <TASK>
[   23.672030][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   23.672187][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   23.672335][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   23.672451][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   23.672570][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   23.672690][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   23.672808][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   23.672926][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   23.673045][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   23.673167][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.673286][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   23.673412][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   23.673528][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   23.673647][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   23.673762][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.673879][   T12]  process_one_work (kernel/workqueue.c:3314)
[   23.673998][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   23.674115][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.674362][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   23.674511][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   23.674625][   T12]  kthread (kernel/kthread.c:436)
[   23.674713][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   23.674857][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   23.674974][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   23.675090][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   23.675240][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   23.675364][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   23.675481][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   23.678144][   T12] ------------[ cut here ]------------
| [   23.678285][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   23.678535][   T12] Modules linked in:
| [   23.678967][   T12] Tainted: [W]=WARN
[   23.679055][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.679269][   T12] Workqueue: netns cleanup_net
[   23.679397][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   23.679552][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   23.679966][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   23.680117][   T12] RAX: 00000000ffffffa6 RBX: ff11000009a44900 RCX: 1ff4000000018eed
[   23.680359][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009a449bc
[   23.680532][   T12] RBP: ff1100000f314000 R08: 1fe2200001348939 R09: ff11000001aed1d0
[   23.680709][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   23.680956][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   23.681134][   T12] FS:  0000000000000000(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   23.681520][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.681666][   T12] CR2: 000055cac4453ae8 CR3: 000000000e234003 CR4: 0000000000771ef0
[   23.681845][   T12] PKRU: 55555554
[   23.681931][   T12] Call Trace:
[   23.682018][   T12]  <TASK>
[   23.682080][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   23.682276][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   23.682425][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   23.682540][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   23.682656][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   23.682772][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   23.682889][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   23.683041][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   23.683210][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   23.683335][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.683458][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   23.683580][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   23.683701][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   23.683823][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   23.683945][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.684067][   T12]  process_one_work (kernel/workqueue.c:3314)
[   23.684309][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   23.684433][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.684557][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   23.684683][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   23.684803][   T12]  kthread (kernel/kthread.c:436)
[   23.684899][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   23.685050][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   23.685218][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   23.685344][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   23.685495][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   23.685615][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   23.685735][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   23.687889][   T12] ------------[ cut here ]------------
| [   23.688020][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   23.688267][   T12] Modules linked in:
| [   23.688639][   T12] Tainted: [W]=WARN
[   23.688730][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.688881][   T12] Workqueue: netns cleanup_net
[   23.689009][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   23.689175][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   23.689602][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   23.689753][   T12] RAX: 00000000ffffffa6 RBX: ff11000009a44c80 RCX: 1ff4000000018eed
[   23.689932][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009a44d3c
[   23.690125][   T12] RBP: ff110000078d1000 R08: 1fe22000013489a9 R09: ff11000001aed1d0
[   23.690310][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   23.690503][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   23.690687][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   23.690897][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.691048][   T12] CR2: 000055caeb797938 CR3: 000000003c54d005 CR4: 0000000000771ef0
[   23.691239][   T12] PKRU: 55555554
[   23.691325][   T12] Call Trace:
[   23.691417][   T12]  <TASK>
[   23.691478][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   23.691626][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   23.691775][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   23.691892][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   23.692009][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   23.692124][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   23.692248][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   23.692371][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   23.692489][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   23.692604][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.692724][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   23.692840][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   23.692955][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   23.693076][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   23.693198][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.693316][   T12]  process_one_work (kernel/workqueue.c:3314)
[   23.693442][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   23.693558][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.693684][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   23.693805][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   23.693920][   T12]  kthread (kernel/kthread.c:436)
[   23.694007][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   23.694155][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   23.694273][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   23.694400][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   23.694546][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   23.694663][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   23.694780][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   23.703474][   T12] ------------[ cut here ]------------
| [   23.703624][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   23.703856][   T12] Modules linked in:
| [   23.704940][   T12] Tainted: [W]=WARN
[   23.705030][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.705181][   T12] Workqueue: netns cleanup_net
[   23.705305][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   23.705460][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   23.705876][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   23.706021][   T12] RAX: 00000000ffffffa6 RBX: ff11000009a45000 RCX: 1ff4000000018eed
[   23.706197][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009a450bc
[   23.706373][   T12] RBP: ff1100000f109000 R08: 1fe2200001348a19 R09: ff11000001aed1d0
[   23.706546][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   23.706717][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   23.706905][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   23.707106][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.707264][   T12] CR2: 000055caeb797938 CR3: 000000003c54d005 CR4: 0000000000771ef0
[   23.707471][   T12] PKRU: 55555554
[   23.707559][   T12] Call Trace:
[   23.707645][   T12]  <TASK>
[   23.707706][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   23.707853][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   23.707995][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   23.708111][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   23.708234][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   23.708354][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   23.708470][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   23.708586][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   23.708703][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   23.708818][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.708936][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   23.709055][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   23.709178][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   23.709294][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   23.709416][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.709533][   T12]  process_one_work (kernel/workqueue.c:3314)
[   23.709652][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   23.709767][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.709887][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   23.710010][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   23.710125][   T12]  kthread (kernel/kthread.c:436)
[   23.710219][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   23.710366][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   23.710481][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   23.710596][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   23.710741][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   23.710858][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   23.710972][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   23.722465][   T12] ------------[ cut here ]------------
| [   23.722597][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   23.722843][   T12] Modules linked in:
| [   23.723219][   T12] Tainted: [W]=WARN
[   23.723311][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.723469][   T12] Workqueue: netns cleanup_net
[   23.723596][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   23.723758][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   23.724209][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   23.724368][   T12] RAX: 00000000ffffffa6 RBX: ff11000009a451c0 RCX: 1ff4000000018eaf
[   23.724549][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009a4527c
[   23.724730][   T12] RBP: ff11000005149000 R08: 1fe2200001348a51 R09: ff11000001aed1d0
[   23.724914][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[   23.725096][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f5cc000
[   23.725287][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   23.725510][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.725664][   T12] CR2: 000055caeb797938 CR3: 000000003c54d005 CR4: 0000000000771ef0
[   23.725846][   T12] PKRU: 55555554
[   23.725937][   T12] Call Trace:
[   23.726030][   T12]  <TASK>
[   23.726094][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   23.726225][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   23.726324][   T12]  netif_close_many (net/core/dev.c:1804)
[   23.726452][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   23.726576][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.726698][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.726821][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   23.726945][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   23.727104][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   23.727263][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   23.727390][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   23.727549][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   23.727672][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   23.727794][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   23.727946][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   23.728070][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   23.728212][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   23.728341][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   23.728467][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   23.728592][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   23.728717][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   23.728839][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.728964][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   23.729088][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   23.729216][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   23.729343][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   23.729469][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.729593][   T12]  process_one_work (kernel/workqueue.c:3314)
[   23.729718][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   23.729839][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.729964][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   23.730092][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   23.730219][   T12]  kthread (kernel/kthread.c:436)
[   23.730311][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   23.730469][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   23.730597][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   23.730719][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   23.730871][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   23.730992][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   23.731114][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   23.733515][   T12] ------------[ cut here ]------------
| [   23.733641][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   23.733882][   T12] Modules linked in:
| [   23.734260][   T12] Tainted: [W]=WARN
[   23.734357][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.734511][   T12] Workqueue: netns cleanup_net
[   23.734641][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   23.734801][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   23.735245][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   23.735403][   T12] RAX: 00000000ffffffa6 RBX: ff1100000f2c4200 RCX: 1ff4000000018eaf
[   23.735598][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000f2c42bc
[   23.735781][   T12] RBP: ff1100000f5cc000 R08: 1fe2200001e58859 R09: ff11000001aed1d0
[   23.735962][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[   23.736155][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000ebc4000
[   23.736343][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   23.736557][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.736708][   T12] CR2: 000055caeb797938 CR3: 000000003c54d005 CR4: 0000000000771ef0
[   23.736892][   T12] PKRU: 55555554
[   23.736984][   T12] Call Trace:
[   23.737074][   T12]  <TASK>
[   23.737137][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   23.737266][   T12]  ? notifier_call_chain (kernel/notifier.c:85)
[   23.737394][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   23.737488][   T12]  netif_close_many (net/core/dev.c:1804)
[   23.737612][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   23.737735][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.737858][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.737980][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   23.738103][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   23.738263][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   23.738422][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   23.738545][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   23.738702][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   23.738823][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   23.738945][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   23.739097][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   23.739238][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   23.739363][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   23.739485][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   23.739606][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   23.739728][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   23.739852][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   23.739974][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.740100][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   23.740227][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   23.740354][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   23.740477][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   23.740599][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.740722][   T12]  process_one_work (kernel/workqueue.c:3314)
[   23.740847][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   23.740969][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.741095][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   23.741227][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   23.741352][   T12]  kthread (kernel/kthread.c:436)
[   23.741444][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   23.741596][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   23.741719][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   23.741842][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   23.741997][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   23.742121][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   23.742247][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   23.752166][   T12] ------------[ cut here ]------------
| [   23.752290][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   23.752541][   T12] Modules linked in:
| [   23.752914][   T12] Tainted: [W]=WARN
[   23.753008][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.753177][   T12] Workqueue: netns cleanup_net
[   23.753304][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   23.753469][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   23.753905][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   23.754059][   T12] RAX: 00000000ffffffa6 RBX: ff1100000f2c5c40 RCX: 1ff4000000018eaf
[   23.754249][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000f2c5cfc
[   23.754439][   T12] RBP: ff1100000ebc4000 R08: 1fe2200001e58ba1 R09: ff11000001aed1d0
[   23.754622][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[   23.754806][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000000c77e0
[   23.754991][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   23.755210][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.755369][   T12] CR2: 000055caeb797938 CR3: 000000003c54d005 CR4: 0000000000771ef0
[   23.755554][   T12] PKRU: 55555554
[   23.755650][   T12] Call Trace:
[   23.755741][   T12]  <TASK>
[   23.755806][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   23.755931][   T12]  ? notifier_call_chain (kernel/notifier.c:85)
[   23.756054][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   23.756156][   T12]  netif_close_many (net/core/dev.c:1804)
[   23.756279][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   23.756406][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.756529][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.756656][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   23.756780][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   23.756936][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   23.757094][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   23.757223][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   23.757381][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   23.757508][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   23.757631][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   23.757786][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   23.757915][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   23.758039][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   23.758167][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   23.758297][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   23.758433][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   23.758564][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   23.758688][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.758816][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   23.758938][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   23.759059][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   23.759191][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   23.759313][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.759440][   T12]  process_one_work (kernel/workqueue.c:3314)
[   23.759566][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   23.759690][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.759817][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   23.759943][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   23.760065][   T12]  kthread (kernel/kthread.c:436)
[   23.760163][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   23.760320][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   23.760449][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   23.760574][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   23.760727][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   23.760850][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   23.760978][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   23.763106][   T12] ------------[ cut here ]------------
| [   23.763234][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   23.763470][   T12] Modules linked in:
| [   23.763847][   T12] Tainted: [W]=WARN
[   23.763936][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.764085][   T12] Workqueue: netns cleanup_net
[   23.764429][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   23.764588][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   23.765011][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   23.765166][   T12] RAX: 00000000ffffffa6 RBX: ff11000002401a80 RCX: 1ff4000000018ed5
[   23.765346][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000002401b3c
[   23.765525][   T12] RBP: ff11000005149000 R08: 1fe2200000480369 R09: ff11000001aed1d0
[   23.765706][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   23.765882][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   23.766060][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   23.766271][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.766425][   T12] CR2: 000055caeb797938 CR3: 000000003c54d005 CR4: 0000000000771ef0
[   23.766603][   T12] PKRU: 55555554
[   23.766691][   T12] Call Trace:
[   23.766784][   T12]  <TASK>
[   23.766847][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   23.766998][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   23.767150][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   23.767269][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   23.767391][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   23.767542][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   23.767667][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   23.767786][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   23.767904][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   23.768023][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   23.768151][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   23.768270][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.768395][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   23.768514][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   23.768632][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   23.768752][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   23.768875][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.768997][   T12]  process_one_work (kernel/workqueue.c:3314)
[   23.769122][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   23.769243][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.769368][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   23.769491][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   23.769611][   T12]  kthread (kernel/kthread.c:436)
[   23.769701][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   23.769847][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   23.769967][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   23.770085][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   23.770239][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   23.770662][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   23.770781][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   23.774890][   T12] ------------[ cut here ]------------
| [   23.775013][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   23.775255][   T12] Modules linked in:
| [   23.775619][   T12] Tainted: [W]=WARN
[   23.775708][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.775857][   T12] Workqueue: netns cleanup_net
[   23.775980][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   23.776134][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   23.776566][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   23.776723][   T12] RAX: 00000000ffffffa6 RBX: ff11000009976580 RCX: 1ff4000000018ed5
[   23.776899][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000997663c
[   23.777077][   T12] RBP: ff1100000f5cc000 R08: 1fe220000132ecc9 R09: ff11000001aed1d0
[   23.777257][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   23.777442][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   23.777619][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   23.777827][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.777976][   T12] CR2: 000055caeb797938 CR3: 000000003c54d005 CR4: 0000000000771ef0
[   23.778158][   T12] PKRU: 55555554
[   23.778246][   T12] Call Trace:
[   23.778336][   T12]  <TASK>
[   23.778398][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   23.778549][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   23.778696][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   23.778818][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   23.778941][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   23.779098][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   23.779228][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   23.779352][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   23.779470][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   23.779590][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   23.779712][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   23.779832][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.779955][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   23.780075][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   23.780199][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   23.780320][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   23.780449][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.780570][   T12]  process_one_work (kernel/workqueue.c:3314)
[   23.780692][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   23.780811][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.780934][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   23.781206][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   23.781325][   T12]  kthread (kernel/kthread.c:436)
[   23.781419][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   23.781567][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   23.781759][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   23.781882][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   23.782031][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   23.782155][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   23.782274][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   23.785431][   T12] ------------[ cut here ]------------
| [   23.785551][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   23.785786][   T12] Modules linked in:
| [   23.786153][   T12] Tainted: [W]=WARN
[   23.786242][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.786400][   T12] Workqueue: netns cleanup_net
[   23.786523][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   23.786677][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   23.787121][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   23.787272][   T12] RAX: 00000000ffffffa6 RBX: ff110000099771c0 RCX: 1ff4000000018ed5
[   23.787454][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000997727c
[   23.787631][   T12] RBP: ff1100000ebc4000 R08: 1fe220000132ee51 R09: ff11000001aed1d0
[   23.787811][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   23.787994][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   23.788179][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   23.788536][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.788686][   T12] CR2: 000055caeb797938 CR3: 000000003c54d005 CR4: 0000000000771ef0
[   23.788863][   T12] PKRU: 55555554
[   23.788950][   T12] Call Trace:
[   23.789041][   T12]  <TASK>
[   23.789104][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   23.789338][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   23.789483][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   23.789600][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   23.789718][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   23.789870][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   23.789990][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   23.790189][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   23.790308][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   23.790428][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   23.790626][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   23.790747][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.790946][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   23.791067][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   23.792025][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   23.792166][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   23.792344][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.792467][   T12]  process_one_work (kernel/workqueue.c:3314)
[   23.792589][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   23.792709][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.792836][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   23.792960][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   23.793083][   T12]  kthread (kernel/kthread.c:436)
[   23.793179][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   23.793327][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   23.793451][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   23.793575][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   23.793727][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   23.793846][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   23.793964][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   23.830420][   T12] ------------[ cut here ]------------
| [   23.830556][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   23.830788][   T12] Modules linked in:
| [   23.831156][   T12] Tainted: [W]=WARN
[   23.831245][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.831396][   T12] Workqueue: netns cleanup_net
[   23.831521][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   23.831673][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   23.832090][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   23.832362][   T12] RAX: 00000000ffffffa6 RBX: ff1100000bc26740 RCX: 1ff4000000018eed
[   23.832537][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bc267fc
[   23.832708][   T12] RBP: ff1100000fddc000 R08: 1fe2200001784d01 R09: ff11000001aed1d0
[   23.832879][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   23.833054][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   23.833242][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   23.833448][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.833595][   T12] CR2: 000055caeb797938 CR3: 000000000f747003 CR4: 0000000000771ef0
[   23.833771][   T12] PKRU: 55555554
[   23.833857][   T12] Call Trace:
[   23.833947][   T12]  <TASK>
[   23.834010][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   23.834166][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   23.834310][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   23.834429][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   23.834546][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   23.834662][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   23.834780][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   23.834900][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   23.835023][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   23.835138][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.835264][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   23.835388][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   23.835505][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   23.835624][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   23.835740][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.835860][   T12]  process_one_work (kernel/workqueue.c:3314)
[   23.835979][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   23.836099][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.836233][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   23.836357][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   23.836473][   T12]  kthread (kernel/kthread.c:436)
[   23.836565][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   23.836709][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   23.836825][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   23.836943][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   23.837087][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   23.837210][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   23.837327][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   23.845706][   T12] ------------[ cut here ]------------
| [   23.845829][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   23.846058][   T12] Modules linked in:
| [   23.846689][   T12] Tainted: [W]=WARN
[   23.846779][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.846928][   T12] Workqueue: netns cleanup_net
[   23.847049][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   23.847217][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   23.847633][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   23.847778][   T12] RAX: 00000000ffffffa6 RBX: ff1100000bc263c0 RCX: 1ff4000000018eed
[   23.847950][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bc2647c
[   23.848125][   T12] RBP: ff1100000e469000 R08: 1fe2200001784c91 R09: ff11000001aed1d0
[   23.848306][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   23.848484][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   23.848669][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   23.848877][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.849029][   T12] CR2: 000055caeb797938 CR3: 000000003c54d005 CR4: 0000000000771ef0
[   23.849212][   T12] PKRU: 55555554
[   23.849300][   T12] Call Trace:
[   23.849391][   T12]  <TASK>
[   23.849451][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   23.849600][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   23.849743][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   23.849861][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   23.849986][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   23.850103][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   23.850228][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   23.850351][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   23.850473][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   23.850591][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.850711][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   23.850828][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   23.850945][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   23.851063][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   23.851185][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.851302][   T12]  process_one_work (kernel/workqueue.c:3314)
[   23.851427][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   23.851544][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.851664][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   23.851785][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   23.851908][   T12]  kthread (kernel/kthread.c:436)
[   23.851997][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   23.852150][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   23.852267][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   23.852392][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   23.852536][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   23.852655][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   23.852772][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   23.854906][   T12] ------------[ cut here ]------------
| [   23.855020][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   23.855704][   T12] Modules linked in:
| [   23.856075][   T12] Tainted: [W]=WARN
[   23.856211][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.856359][   T12] Workqueue: netns cleanup_net
[   23.856480][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   23.856634][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   23.857059][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   23.857253][   T12] RAX: 00000000ffffffa6 RBX: ff11000002401c40 RCX: 1ff4000000018eed
[   23.857432][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000002401cfc
[   23.857605][   T12] RBP: ff1100000e504000 R08: 1fe22000004803a1 R09: ff11000001aed1d0
[   23.857777][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   23.857955][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   23.858128][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   23.858383][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.858533][   T12] CR2: 000055caeb797938 CR3: 000000003c54d005 CR4: 0000000000771ef0
[   23.858706][   T12] PKRU: 55555554
[   23.858792][   T12] Call Trace:
[   23.858877][   T12]  <TASK>
[   23.858938][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   23.859088][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   23.859278][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   23.859400][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   23.859517][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   23.859633][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   23.859754][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   23.859871][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   23.859989][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   23.860104][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.860275][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   23.860397][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   23.860513][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   23.860631][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   23.860747][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.860868][   T12]  process_one_work (kernel/workqueue.c:3314)
[   23.860994][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   23.861110][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.861304][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   23.861432][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   23.861562][   T12]  kthread (kernel/kthread.c:436)
[   23.861650][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   23.861795][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   23.861913][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   23.862030][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   23.862221][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   23.862343][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   23.862464][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   23.865290][   T12] ------------[ cut here ]------------
| [   23.865428][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   23.865655][   T12] Modules linked in:
| [   23.866008][   T12] Tainted: [W]=WARN
[   23.866094][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.866251][   T12] Workqueue: netns cleanup_net
[   23.866374][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   23.866534][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   23.866946][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   23.867091][   T12] RAX: 00000000ffffffa6 RBX: ff110000024011c0 RCX: 1ff4000000018eed
[   23.867267][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000240127c
[   23.867445][   T12] RBP: ff1100000e4ac000 R08: 1fe2200000480251 R09: ff11000001aed1d0
[   23.867617][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   23.867787][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   23.867987][   T12] FS:  0000000000000000(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   23.868203][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.868355][   T12] CR2: 00007feb83913ec0 CR3: 000000003c54d006 CR4: 0000000000771ef0
[   23.868530][   T12] PKRU: 55555554
[   23.868616][   T12] Call Trace:
[   23.868707][   T12]  <TASK>
[   23.868768][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   23.868917][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   23.869060][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   23.869219][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   23.869340][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   23.869455][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   23.869571][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   23.869689][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   23.869808][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   23.869924][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.870045][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   23.870170][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   23.870287][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   23.870419][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   23.870536][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.870653][   T12]  process_one_work (kernel/workqueue.c:3314)
[   23.870774][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   23.870890][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.871017][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   23.871138][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   23.871261][   T12]  kthread (kernel/kthread.c:436)
[   23.871354][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   23.871498][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   23.871615][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   23.871734][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   23.871879][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   23.871995][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   23.872112][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   23.874387][   T12] ------------[ cut here ]------------
| [   23.874522][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   23.874760][   T12] Modules linked in:
| [   23.875111][   T12] Tainted: [W]=WARN
[   23.875215][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.875369][   T12] Workqueue: netns cleanup_net
[   23.875489][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   23.875640][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   23.876053][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   23.876205][   T12] RAX: 00000000ffffffa6 RBX: ff11000002400c80 RCX: 1ff4000000018eed
[   23.876386][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000002400d3c
[   23.876556][   T12] RBP: ff1100000e49c000 R08: 1fe22000004801a9 R09: ff11000001aed1d0
[   23.876728][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   23.876903][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   23.877077][   T12] FS:  0000000000000000(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   23.877286][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.877438][   T12] CR2: 00007feb83913ec0 CR3: 000000003c54d006 CR4: 0000000000771ef0
[   23.877613][   T12] PKRU: 55555554
[   23.877698][   T12] Call Trace:
[   23.877785][   T12]  <TASK>
[   23.877846][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   23.878000][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   23.878150][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   23.878267][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   23.878388][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   23.878504][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   23.878621][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   23.878737][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   23.878855][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   23.878969][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.879088][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   23.879214][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   23.879329][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   23.879453][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   23.879567][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.879683][   T12]  process_one_work (kernel/workqueue.c:3314)
[   23.879806][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   23.879920][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.880040][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   23.880170][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   23.880290][   T12]  kthread (kernel/kthread.c:436)
[   23.880382][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   23.880526][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   23.880641][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   23.880757][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   23.880900][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   23.881017][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   23.881135][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   23.892808][   T12] ------------[ cut here ]------------
| [   23.892987][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   23.893279][   T12] Modules linked in:
| [   23.893704][   T12] Tainted: [W]=WARN
[   23.893809][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.893975][   T12] Workqueue: netns cleanup_net
[   23.894122][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   23.894307][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   23.894799][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   23.894973][   T12] RAX: 00000000ffffffa6 RBX: ff11000002400900 RCX: 1ff4000000018eaf
[   23.895186][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000024009bc
[   23.895395][   T12] RBP: ff1100000a531000 R08: 1fe2200000480139 R09: ff11000001aed1d0
[   23.895604][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000041
[   23.895804][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000000c77e0
[   23.896009][   T12] FS:  0000000000000000(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   23.896252][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.896427][   T12] CR2: 00007feb83913ec0 CR3: 000000003c54d006 CR4: 0000000000771ef0
[   23.896629][   T12] PKRU: 55555554
[   23.896733][   T12] Call Trace:
[   23.896828][   T12]  <TASK>
[   23.896893][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   23.897029][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   23.897134][   T12]  netif_close_many (net/core/dev.c:1804)
[   23.897276][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   23.897408][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.897545][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.897676][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   23.897811][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   23.897980][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   23.898194][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   23.898348][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   23.898478][   T12]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   23.898604][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   23.898763][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   23.898893][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   23.899025][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   23.899162][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   23.899287][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   23.899434][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   23.899563][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   23.899684][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.899808][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   23.899932][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   23.900057][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   23.900241][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   23.900373][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.900497][   T12]  process_one_work (kernel/workqueue.c:3314)
[   23.900622][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   23.900743][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.900875][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   23.901000][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   23.901121][   T12]  kthread (kernel/kthread.c:436)
[   23.901263][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   23.901432][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   23.901555][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   23.901677][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   23.901830][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   23.901953][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   23.902075][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   23.905583][   T12] ------------[ cut here ]------------
| [   23.905717][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   23.905950][   T12] Modules linked in:
| [   23.906351][   T12] Tainted: [W]=WARN
[   23.906441][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.906589][   T12] Workqueue: netns cleanup_net
[   23.906712][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   23.906867][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   23.907388][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   23.907535][   T12] RAX: 00000000ffffffa6 RBX: ff1100000f0b6c80 RCX: 1ff4000000018ed5
[   23.907711][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000f0b6d3c
[   23.907886][   T12] RBP: ff1100000a531000 R08: 1fe2200001e16da9 R09: ff11000001aed1d0
[   23.908065][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   23.908290][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   23.908602][   T12] FS:  0000000000000000(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   23.908822][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.908970][   T12] CR2: 00007feb83913ec0 CR3: 000000003c54d006 CR4: 0000000000771ef0
[   23.909202][   T12] PKRU: 55555554
[   23.909292][   T12] Call Trace:
[   23.909386][   T12]  <TASK>
[   23.909495][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   23.909650][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   23.909803][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   23.909923][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   23.910067][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   23.910235][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   23.910356][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   23.910523][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   23.910644][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   23.910760][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.910883][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   23.911000][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   23.911122][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   23.911288][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   23.911408][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.911530][   T12]  process_one_work (kernel/workqueue.c:3314)
[   23.911650][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   23.911771][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.911893][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   23.912015][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   23.912132][   T12]  kthread (kernel/kthread.c:436)
[   23.912269][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   23.912425][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   23.912543][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   23.912659][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   23.912807][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   23.912924][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   23.913042][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   23.938631][  T356] ------------[ cut here ]------------
| [   23.938808][  T356] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/356
| [   23.939042][  T356] Modules linked in:
| [   23.939431][  T356] Tainted: [W]=WARN
[   23.939532][  T356] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.939698][  T356] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   23.939898][  T356] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   23.940376][  T356] RSP: 0018:ffa0000000fc7a80 EFLAGS: 00010286
[   23.940544][  T356] RAX: 00000000ffffffa6 RBX: ff1100000f0b7e00 RCX: 1ff40000001f8f16
[   23.940738][  T356] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000f0b7ebc
[   23.940935][  T356] RBP: ff1100000f2ec000 R08: 1fe2200001e16fd9 R09: ff1100000e845180
[   23.941130][  T356] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   23.941336][  T356] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f2ec000
[   23.941534][  T356] FS:  00007fd670227840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   23.941763][  T356] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.941927][  T356] CR2: 00007fd6704317d0 CR3: 0000000009f18005 CR4: 0000000000771ef0
[   23.942123][  T356] PKRU: 55555554
[   23.942225][  T356] Call Trace:
[   23.942323][  T356]  <TASK>
[   23.942394][  T356]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   23.942525][  T356]  ? notifier_call_chain (kernel/notifier.c:85)
[   23.942669][  T356]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   23.942771][  T356]  register_netdevice (net/core/dev.c:11488)
[   23.942904][  T356]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   23.943066][  T356]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   23.943207][  T356]  register_netdev (net/core/dev.c:11552)
[   23.943343][  T356]  loopback_net_init (drivers/net/loopback.c:218)
[   23.943475][  T356]  ops_init (net/core/net_namespace.c:137)
[   23.943575][  T356]  setup_net (net/core/net_namespace.c:446)
[   23.943676][  T356]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   23.943807][  T356]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   23.943938][  T356]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   23.944076][  T356]  copy_net_ns (net/core/net_namespace.c:579)
[   23.944216][  T356]  create_new_namespaces (kernel/nsproxy.c:132)
[   23.944396][  T356]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   23.944529][  T356]  ksys_unshare (kernel/fork.c:3243)
[   23.944662][  T356]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   23.944794][  T356]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   23.944925][  T356]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   23.945061][  T356]  ? __ia32_sys_open (fs/open.c:1374)
[   23.945227][  T356]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   23.945370][  T356]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   23.945501][  T356]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   23.945630][  T356]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   23.945760][  T356]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   23.945891][  T356]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   23.946066][  T356] RIP: 0033:0x7fd6704e9bcb
[   23.946212][  T356] 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
[   23.946684][  T356] RSP: 002b:00007fff2141b2f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   23.946882][  T356] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fd6704e9bcb
[   23.947085][  T356] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   23.947284][  T356] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   23.947483][  T356] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff2141d520
[   23.947680][  T356] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff2141d867
| [   23.958005][  T356] ------------[ cut here ]------------
| [   23.958170][  T356] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/356
| [   23.958398][  T356] Modules linked in:
| [   23.958763][  T356] Tainted: [W]=WARN
[   23.958863][  T356] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.959026][  T356] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   23.959227][  T356] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   23.959707][  T356] RSP: 0018:ffa0000000fc7918 EFLAGS: 00010286
[   23.959869][  T356] RAX: 00000000ffffffa6 RBX: ff11000004dba3c0 RCX: 1ff40000001f8ee9
[   23.960066][  T356] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000004dba47c
[   23.960267][  T356] RBP: ff11000009899000 R08: 1fe22000009b7491 R09: ff1100000e845180
[   23.960463][  T356] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   23.960657][  T356] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009899000
[   23.960852][  T356] FS:  00007fd670227840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   23.961081][  T356] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.961250][  T356] CR2: 00007fd6704317d0 CR3: 0000000009f18005 CR4: 0000000000771ef0
[   23.961453][  T356] PKRU: 55555554
[   23.961549][  T356] Call Trace:
[   23.961646][  T356]  <TASK>
[   23.961714][  T356]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   23.961846][  T356]  ? notifier_call_chain (kernel/notifier.c:85)
[   23.961978][  T356]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   23.962078][  T356]  register_netdevice (net/core/dev.c:11488)
[   23.962216][  T356]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   23.962381][  T356]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   23.962517][  T356]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   23.962664][  T356]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   23.962800][  T356]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   23.962949][  T356]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   23.963092][  T356]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   23.963239][  T356]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   23.963390][  T356]  ops_init (net/core/net_namespace.c:137)
[   23.963495][  T356]  setup_net (net/core/net_namespace.c:446)
[   23.963606][  T356]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   23.963751][  T356]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   23.963896][  T356]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   23.964038][  T356]  copy_net_ns (net/core/net_namespace.c:579)
[   23.964189][  T356]  create_new_namespaces (kernel/nsproxy.c:132)
[   23.964337][  T356]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   23.964480][  T356]  ksys_unshare (kernel/fork.c:3243)
[   23.964625][  T356]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   23.964769][  T356]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   23.964916][  T356]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   23.965058][  T356]  ? __ia32_sys_open (fs/open.c:1374)
[   23.965212][  T356]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   23.965354][  T356]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   23.965495][  T356]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   23.965640][  T356]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   23.965781][  T356]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   23.965920][  T356]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   23.966090][  T356] RIP: 0033:0x7fd6704e9bcb
[   23.966233][  T356] 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
[   23.966860][  T356] RSP: 002b:00007fff2141b2f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   23.967058][  T356] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fd6704e9bcb
[   23.967261][  T356] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   23.967480][  T356] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   23.967676][  T356] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff2141d520
[   23.967871][  T356] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff2141d867
| [   23.971731][  T356] ------------[ cut here ]------------
| [   23.971865][  T356] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/356
| [   23.972090][  T356] Modules linked in:
| [   23.972990][  T356] Tainted: [W]=WARN
[   23.973090][  T356] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.973313][  T356] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   23.973490][  T356] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   23.973959][  T356] RSP: 0018:ffa0000000fc78f8 EFLAGS: 00010286
[   23.974124][  T356] RAX: 00000000ffffffa6 RBX: ff1100000ca7de00 RCX: 1ff40000001f8ee5
[   23.974385][  T356] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ca7debc
[   23.974611][  T356] RBP: ff110000051f1000 R08: 1fe220000194fbd9 R09: ff1100000e845180
[   23.974807][  T356] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   23.975002][  T356] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000051f1000
[   23.975259][  T356] FS:  00007fd670227840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   23.975509][  T356] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.975674][  T356] CR2: 00007fd6704317d0 CR3: 0000000009f18005 CR4: 0000000000771ef0
[   23.975872][  T356] PKRU: 55555554
[   23.975970][  T356] Call Trace:
[   23.976069][  T356]  <TASK>
[   23.976138][  T356]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   23.976327][  T356]  ? notifier_call_chain (kernel/notifier.c:85)
[   23.976467][  T356]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   23.976570][  T356]  register_netdevice (net/core/dev.c:11488)
[   23.976704][  T356]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   23.976870][  T356]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   23.977010][  T356]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   23.977213][  T356]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   23.977363][  T356]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   23.977506][  T356]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   23.977653][  T356]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   23.977796][  T356]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   23.977937][  T356]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   23.978080][  T356]  vti_init_net (net/ipv4/ip_vti.c:517)
[   23.978281][  T356]  ops_init (net/core/net_namespace.c:137)
[   23.978392][  T356]  setup_net (net/core/net_namespace.c:446)
[   23.978494][  T356]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   23.978639][  T356]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   23.978785][  T356]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   23.978933][  T356]  copy_net_ns (net/core/net_namespace.c:579)
[   23.979073][  T356]  create_new_namespaces (kernel/nsproxy.c:132)
[   23.979274][  T356]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   23.979422][  T356]  ksys_unshare (kernel/fork.c:3243)
[   23.979567][  T356]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   23.979712][  T356]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   23.979852][  T356]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   23.979990][  T356]  ? __ia32_sys_open (fs/open.c:1374)
[   23.980127][  T356]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   23.980337][  T356]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   23.980493][  T356]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   23.980633][  T356]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   23.980764][  T356]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   23.980897][  T356]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   23.981060][  T356] RIP: 0033:0x7fd6704e9bcb
[   23.981274][  T356] 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
[   23.981765][  T356] RSP: 002b:00007fff2141b2f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   23.981966][  T356] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fd6704e9bcb
[   23.982220][  T356] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   23.982421][  T356] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   23.982618][  T356] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff2141d520
[   23.982817][  T356] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff2141d867
| [   23.987425][  T356] ------------[ cut here ]------------
| [   23.987624][  T356] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/356
| [   23.987902][  T356] Modules linked in:
| [   23.988397][  T356] Tainted: [W]=WARN
[   23.988544][  T356] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.988755][  T356] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   23.988974][  T356] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   23.989509][  T356] RSP: 0018:ffa0000000fc7a78 EFLAGS: 00010286
[   23.989726][  T356] RAX: 00000000ffffffa6 RBX: ff1100000ca7dc40 RCX: 1ff40000001f8f15
[   23.989970][  T356] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ca7dcfc
[   23.990225][  T356] RBP: ff11000008c91000 R08: 1fe220000194fba1 R09: ff1100000e845180
[   23.990520][  T356] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   23.990762][  T356] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008c91000
[   23.991010][  T356] FS:  00007fd670227840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   23.991299][  T356] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.991515][  T356] CR2: 00007f7da85f5574 CR3: 0000000009f18002 CR4: 0000000000771ef0
[   23.991784][  T356] PKRU: 55555554
[   23.991930][  T356] Call Trace:
[   23.992078][  T356]  <TASK>
[   23.992205][  T356]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   23.992393][  T356]  ? notifier_call_chain (kernel/notifier.c:85)
[   23.992573][  T356]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   23.992747][  T356]  register_netdevice (net/core/dev.c:11488)
[   23.992928][  T356]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   23.993240][  T356]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.993434][  T356]  register_netdev (net/core/dev.c:11552)
[   23.993612][  T356]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   23.993791][  T356]  ops_init (net/core/net_namespace.c:137)
[   23.994036][  T356]  setup_net (net/core/net_namespace.c:446)
[   23.994198][  T356]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   23.994381][  T356]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   23.994591][  T356]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   23.994782][  T356]  copy_net_ns (net/core/net_namespace.c:579)
[   23.994970][  T356]  create_new_namespaces (kernel/nsproxy.c:132)
[   23.995172][  T356]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   23.995366][  T356]  ksys_unshare (kernel/fork.c:3243)
[   23.995544][  T356]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   23.995735][  T356]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   23.995912][  T356]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   23.996094][  T356]  ? __ia32_sys_open (fs/open.c:1374)
[   23.996292][  T356]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   23.996478][  T356]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   23.996655][  T356]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   23.996865][  T356]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   23.997049][  T356]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   23.997242][  T356]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   23.997480][  T356] RIP: 0033:0x7fd6704e9bcb
[   23.997677][  T356] 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
[   23.998204][  T356] RSP: 002b:00007fff2141b2f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   23.998482][  T356] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fd6704e9bcb
[   23.998725][  T356] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   23.998965][  T356] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   23.999222][  T356] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff2141d520
[   23.999496][  T356] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff2141d867
| [   24.004113][  T356] ------------[ cut here ]------------
| [   24.004318][  T356] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/356
| [   24.004600][  T356] Modules linked in:
| [   24.005098][  T356] Tainted: [W]=WARN
[   24.005259][  T356] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.005476][  T356] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.005691][  T356] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.006225][  T356] RSP: 0018:ffa0000000fc7a68 EFLAGS: 00010286
[   24.006453][  T356] RAX: 00000000ffffffa6 RBX: ff1100000c908200 RCX: 1ff40000001f8f13
[   24.006702][  T356] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c9082bc
[   24.006948][  T356] RBP: ff1100000f10c000 R08: 1fe2200001921059 R09: ff1100000e845180
[   24.007203][  T356] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   24.007452][  T356] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f10c000
[   24.007697][  T356] FS:  00007fd670227840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   24.007979][  T356] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.008212][  T356] CR2: 00007f7da85f5574 CR3: 0000000009f18002 CR4: 0000000000771ef0
[   24.008470][  T356] PKRU: 55555554
[   24.008618][  T356] Call Trace:
[   24.008766][  T356]  <TASK>
[   24.008881][  T356]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.009060][  T356]  ? notifier_call_chain (kernel/notifier.c:85)
[   24.009275][  T356]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.009433][  T356]  register_netdevice (net/core/dev.c:11488)
[   24.009612][  T356]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   24.009961][  T356]  register_netdev (net/core/dev.c:11552)
[   24.010154][  T356]  sit_init_net (net/ipv6/sit.c:1860)
[   24.010351][  T356]  ops_init (net/core/net_namespace.c:137)
[   24.010760][  T356]  setup_net (net/core/net_namespace.c:446)
[   24.010907][  T356]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   24.011088][  T356]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   24.011279][  T356]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   24.011469][  T356]  copy_net_ns (net/core/net_namespace.c:579)
[   24.011649][  T356]  create_new_namespaces (kernel/nsproxy.c:132)
[   24.011856][  T356]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   24.012035][  T356]  ksys_unshare (kernel/fork.c:3243)
[   24.012226][  T356]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   24.012417][  T356]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   24.012601][  T356]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   24.012780][  T356]  ? __ia32_sys_open (fs/open.c:1374)
[   24.012962][  T356]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   24.013176][  T356]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   24.013364][  T356]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.013544][  T356]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   24.013723][  T356]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.013902][  T356]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.014112][  T356] RIP: 0033:0x7fd6704e9bcb
[   24.014312][  T356] 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
[   24.014828][  T356] RSP: 002b:00007fff2141b2f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   24.015075][  T356] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fd6704e9bcb
[   24.015339][  T356] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   24.015582][  T356] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   24.015824][  T356] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff2141d520
[   24.016084][  T356] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff2141d867
| [   24.021283][  T356] ------------[ cut here ]------------
| [   24.021484][  T356] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/356
| [   24.021758][  T356] Modules linked in:
| [   24.022761][  T356] Tainted: [W]=WARN
[   24.022965][  T356] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.023302][  T356] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.023618][  T356] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.024199][  T356] RSP: 0018:ffa0000000fc7a78 EFLAGS: 00010286
[   24.024521][  T356] RAX: 00000000ffffffa6 RBX: ff1100000cd96740 RCX: 1ff40000001f8f15
[   24.024821][  T356] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cd967fc
[   24.025115][  T356] RBP: ff1100000fdc1000 R08: 1fe22000019b2d01 R09: ff1100000e845180
[   24.025429][  T356] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   24.025725][  T356] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fdc1000
[   24.026026][  T356] FS:  00007fd670227840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   24.026377][  T356] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.026642][  T356] CR2: 00007f7da85f5574 CR3: 0000000009f18002 CR4: 0000000000771ef0
[   24.026940][  T356] PKRU: 55555554
[   24.027136][  T356] Call Trace:
[   24.027408][  T356]  <TASK>
[   24.027581][  T356]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.027813][  T356]  ? notifier_call_chain (kernel/notifier.c:85)
[   24.028068][  T356]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.028283][  T356]  register_netdevice (net/core/dev.c:11488)
[   24.028556][  T356]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   24.028825][  T356]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.029045][  T356]  register_netdev (net/core/dev.c:11552)
[   24.029239][  T356]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   24.029430][  T356]  ops_init (net/core/net_namespace.c:137)
[   24.029580][  T356]  setup_net (net/core/net_namespace.c:446)
[   24.029728][  T356]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   24.029906][  T356]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   24.030086][  T356]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   24.030280][  T356]  copy_net_ns (net/core/net_namespace.c:579)
[   24.030473][  T356]  create_new_namespaces (kernel/nsproxy.c:132)
[   24.030684][  T356]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   24.030865][  T356]  ksys_unshare (kernel/fork.c:3243)
[   24.031044][  T356]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   24.031263][  T356]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   24.031463][  T356]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   24.031657][  T356]  ? __ia32_sys_open (fs/open.c:1374)
[   24.031854][  T356]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   24.032039][  T356]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   24.032240][  T356]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.032435][  T356]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   24.032621][  T356]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.032808][  T356]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.033025][  T356] RIP: 0033:0x7fd6704e9bcb
[   24.033232][  T356] 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
[   24.033811][  T356] RSP: 002b:00007fff2141b2f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   24.034078][  T356] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fd6704e9bcb
[   24.034366][  T356] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   24.034636][  T356] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   24.034897][  T356] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff2141d520
[   24.035175][  T356] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff2141d867
| [   24.060179][  T357] ------------[ cut here ]------------
| [   24.060342][  T357] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/357
| [   24.060578][  T357] Modules linked in:
| [   24.060958][  T357] Tainted: [W]=WARN
[   24.061062][  T357] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.061238][  T357] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.061417][  T357] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.061897][  T357] RSP: 0018:ffa0000000fd7020 EFLAGS: 00010286
[   24.062070][  T357] RAX: 00000000ffffffa6 RBX: ff1100000ca7c740 RCX: 1ff40000001fadca
[   24.062279][  T357] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ca7c7fc
[   24.062484][  T357] RBP: ff1100000f2ec000 R08: 1fe220000194f901 R09: ff1100000fc12e58
[   24.062689][  T357] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[   24.062892][  T357] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   24.063093][  T357] FS:  00007ff4acb2a840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   24.063342][  T357] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.063510][  T357] CR2: 000000000f79f988 CR3: 00000000051ae002 CR4: 0000000000771ef0
[   24.063714][  T357] PKRU: 55555554
[   24.063813][  T357] Call Trace:
[   24.063914][  T357]  <TASK>
[   24.063984][  T357]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.064121][  T357]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.064230][  T357]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   24.064371][  T357]  __dev_notify_flags (net/core/dev.c:9787)
[   24.064509][  T357]  ? netif_change_name (net/core/dev.c:1495)
[   24.064645][  T357]  ? __dev_change_flags (net/core/dev.c:9752)
[   24.064784][  T357]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   24.064919][  T357]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.065056][  T357]  ? 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))
[   24.065201][  T357]  netif_change_flags (net/core/dev.c:9820)
[   24.065342][  T357]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   24.065477][  T357]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   24.065617][  T357]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   24.065753][  T357]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   24.065922][  T357]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.066059][  T357]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   24.066810][  T357]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   24.066953][  T357]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   24.067089][  T357]  ? __kernel_text_address (kernel/extable.c:79)
[   24.067233][  T357]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   24.067375][  T357]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.067509][  T357]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   24.067644][  T357]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.067781][  T357]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   24.067918][  T357]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.068053][  T357]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.068192][  T357]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   24.068328][  T357]  ? __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)
[   24.068467][  T357]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   24.068601][  T357]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   24.068738][  T357]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   24.068875][  T357]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   24.069014][  T357]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   24.069155][  T357]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.069291][  T357]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.069430][  T357]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   24.069564][  T357]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   24.069698][  T357]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.069835][  T357]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.069969][  T357]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.070104][  T357]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   24.070245][  T357]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.070386][  T357]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   24.070522][  T357]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   24.070659][  T357]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   24.070794][  T357]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.070930][  T357]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   24.071066][  T357]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.071208][  T357]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.071348][  T357]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   24.071484][  T357]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.071621][  T357]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   24.071761][  T357]  ? 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))
[   24.071896][  T357]  ? 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))
[   24.072066][  T357]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   24.072209][  T357]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   24.072350][  T357]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   24.072489][  T357]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   24.072624][  T357]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   24.072762][  T357]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   24.072900][  T357]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   24.073037][  T357]  ? copy_msghdr_from_user (net/socket.c:2635)
[   24.073180][  T357]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   24.073350][  T357]  ? move_addr_to_kernel (net/socket.c:258)
[   24.073488][  T357]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   24.073623][  T357]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   24.073762][  T357]  ___sys_sendmsg (net/socket.c:2752)
[   24.073898][  T357]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   24.074065][  T357]  ? copy_msghdr_from_user (net/socket.c:2603)
[   24.074219][  T357]  __sys_sendmsg (net/socket.c:2784)
[   24.074359][  T357]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   24.074495][  T357]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   24.074669][  T357]  ? 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)
[   24.074806][  T357]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.074943][  T357]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.075079][  T357]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   24.075221][  T357]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.075362][  T357]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.075531][  T357] RIP: 0033:0x7ff4acd6408e
[   24.075674][  T357] 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
[   24.076163][  T357] RSP: 002b:00007ffe2e7fa810 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   24.076376][  T357] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff4acd6408e
[   24.076581][  T357] RDX: 0000000000000000 RSI: 00007ffe2e7fa8c0 RDI: 0000000000000005
[   24.076784][  T357] RBP: 00007ffe2e7fa820 R08: 0000000000000000 R09: 0000000000000000
[   24.076987][  T357] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ea22
[   24.077194][  T357] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe2e7faf90
| [   24.276984][  T365] ------------[ cut here ]------------
| [   24.277640][  T365] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/365
| [   24.277943][  T365] Modules linked in:
| [   24.278441][  T365] Tainted: [W]=WARN
[   24.278589][  T365] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.278806][  T365] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.279033][  T365] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.279576][  T365] RSP: 0018:ffa00000005e7a80 EFLAGS: 00010286
[   24.279794][  T365] RAX: 00000000ffffffa6 RBX: ff1100000c9091c0 RCX: 1ff40000000bcf16
[   24.280040][  T365] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c90927c
[   24.280297][  T365] RBP: ff110000090e9000 R08: 1fe2200001921251 R09: ff1100000fc60b80
[   24.280548][  T365] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   24.280794][  T365] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000090e9000
[   24.281044][  T365] FS:  00007fc43f985840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   24.281349][  T365] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.281567][  T365] CR2: 00007fc43fb91690 CR3: 000000000f522006 CR4: 0000000000771ef0
[   24.281817][  T365] PKRU: 55555554
[   24.281965][  T365] Call Trace:
[   24.282114][  T365]  <TASK>
[   24.282245][  T365]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.282437][  T365]  ? notifier_call_chain (kernel/notifier.c:85)
[   24.282621][  T365]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.282773][  T365]  register_netdevice (net/core/dev.c:11488)
[   24.282960][  T365]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   24.283187][  T365]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   24.283380][  T365]  register_netdev (net/core/dev.c:11552)
[   24.283565][  T365]  loopback_net_init (drivers/net/loopback.c:218)
[   24.283749][  T365]  ops_init (net/core/net_namespace.c:137)
[   24.283901][  T365]  setup_net (net/core/net_namespace.c:446)
[   24.284052][  T365]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   24.284248][  T365]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   24.284442][  T365]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   24.284627][  T365]  copy_net_ns (net/core/net_namespace.c:579)
[   24.284814][  T365]  create_new_namespaces (kernel/nsproxy.c:132)
[   24.285001][  T365]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   24.285196][  T365]  ksys_unshare (kernel/fork.c:3243)
[   24.285383][  T365]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   24.285568][  T365]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   24.285752][  T365]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   24.285935][  T365]  ? __ia32_sys_open (fs/open.c:1374)
[   24.286120][  T365]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   24.286316][  T365]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   24.286507][  T365]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.286690][  T365]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   24.286872][  T365]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.287058][  T365]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.287288][  T365] RIP: 0033:0x7fc43fc47bcb
[   24.287485][  T365] 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
[   24.288013][  T365] RSP: 002b:00007ffde6a97488 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   24.288278][  T365] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fc43fc47bcb
[   24.288535][  T365] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   24.288785][  T365] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   24.289035][  T365] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffde6a996b0
[   24.289294][  T365] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffde6a9a865
| [   24.293614][  T365] ------------[ cut here ]------------
| [   24.293806][  T365] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/365
| [   24.294085][  T365] Modules linked in:
| [   24.294578][  T365] Tainted: [W]=WARN
[   24.294727][  T365] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.294943][  T365] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.295181][  T365] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.295710][  T365] RSP: 0018:ffa00000005e7918 EFLAGS: 00010286
[   24.295931][  T365] RAX: 00000000ffffffa6 RBX: ff1100000bc27a80 RCX: 1ff40000000bcee9
[   24.296192][  T365] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bc27b3c
[   24.296447][  T365] RBP: ff110000094e1000 R08: 1fe2200001784f69 R09: ff1100000fc60b80
[   24.296692][  T365] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   24.296941][  T365] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000094e1000
[   24.297203][  T365] FS:  00007fc43f985840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   24.297495][  T365] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.297711][  T365] CR2: 00007fc43fb91690 CR3: 000000000f522006 CR4: 0000000000771ef0
[   24.297964][  T365] PKRU: 55555554
[   24.298113][  T365] Call Trace:
[   24.298274][  T365]  <TASK>
[   24.298400][  T365]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.298586][  T365]  ? notifier_call_chain (kernel/notifier.c:85)
[   24.298770][  T365]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.298923][  T365]  register_netdevice (net/core/dev.c:11488)
[   24.299108][  T365]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   24.299343][  T365]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   24.299528][  T365]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   24.299712][  T365]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   24.299894][  T365]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   24.300077][  T365]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   24.300274][  T365]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   24.300468][  T365]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   24.300653][  T365]  ops_init (net/core/net_namespace.c:137)
[   24.300806][  T365]  setup_net (net/core/net_namespace.c:446)
[   24.300958][  T365]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   24.301153][  T365]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   24.301347][  T365]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   24.301533][  T365]  copy_net_ns (net/core/net_namespace.c:579)
[   24.301717][  T365]  create_new_namespaces (kernel/nsproxy.c:132)
[   24.301904][  T365]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   24.302087][  T365]  ksys_unshare (kernel/fork.c:3243)
[   24.302284][  T365]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   24.302480][  T365]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   24.302665][  T365]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   24.302849][  T365]  ? __ia32_sys_open (fs/open.c:1374)
[   24.303034][  T365]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   24.303226][  T365]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   24.303412][  T365]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.303595][  T365]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   24.303777][  T365]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.303962][  T365]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.304188][  T365] RIP: 0033:0x7fc43fc47bcb
[   24.304381][  T365] 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
[   24.304907][  T365] RSP: 002b:00007ffde6a97488 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   24.305169][  T365] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fc43fc47bcb
[   24.305424][  T365] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   24.305671][  T365] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   24.305918][  T365] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffde6a996b0
[   24.306177][  T365] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffde6a9a865
| [   24.310896][  T365] ------------[ cut here ]------------
| [   24.311088][  T365] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/365
| [   24.311391][  T365] Modules linked in:
| [   24.311863][  T365] Tainted: [W]=WARN
[   24.312013][  T365] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.312247][  T365] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.312479][  T365] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.313006][  T365] RSP: 0018:ffa00000005e78f8 EFLAGS: 00010286
[   24.313239][  T365] RAX: 00000000ffffffa6 RBX: ff110000092b4c80 RCX: 1ff40000000bcee5
[   24.313498][  T365] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000092b4d3c
[   24.313747][  T365] RBP: ff110000078c1000 R08: 1fe22000012569a9 R09: ff1100000fc60b80
[   24.313996][  T365] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   24.314260][  T365] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000078c1000
[   24.314521][  T365] FS:  00007fc43f985840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   24.314809][  T365] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.315026][  T365] CR2: 00007fc43fb91690 CR3: 000000000f522006 CR4: 0000000000771ef0
[   24.315293][  T365] PKRU: 55555554
[   24.315449][  T365] Call Trace:
[   24.315598][  T365]  <TASK>
[   24.315719][  T365]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.315902][  T365]  ? notifier_call_chain (kernel/notifier.c:85)
[   24.316084][  T365]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.316249][  T365]  register_netdevice (net/core/dev.c:11488)
[   24.316447][  T365]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   24.316667][  T365]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   24.316852][  T365]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   24.317041][  T365]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   24.317237][  T365]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   24.317436][  T365]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   24.317626][  T365]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   24.317812][  T365]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   24.317997][  T365]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   24.318196][  T365]  vti_init_net (net/ipv4/ip_vti.c:517)
[   24.318383][  T365]  ops_init (net/core/net_namespace.c:137)
[   24.318539][  T365]  setup_net (net/core/net_namespace.c:446)
[   24.318691][  T365]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   24.318876][  T365]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   24.319061][  T365]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   24.319259][  T365]  copy_net_ns (net/core/net_namespace.c:579)
[   24.319451][  T365]  create_new_namespaces (kernel/nsproxy.c:132)
[   24.319638][  T365]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   24.319826][  T365]  ksys_unshare (kernel/fork.c:3243)
[   24.320009][  T365]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   24.320205][  T365]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   24.320396][  T365]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   24.320585][  T365]  ? __ia32_sys_open (fs/open.c:1374)
[   24.320773][  T365]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   24.320956][  T365]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   24.321156][  T365]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.321349][  T365]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   24.321534][  T365]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.321718][  T365]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.321933][  T365] RIP: 0033:0x7fc43fc47bcb
[   24.322121][  T365] 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
[   24.322662][  T365] RSP: 002b:00007ffde6a97488 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   24.322915][  T365] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fc43fc47bcb
[   24.323175][  T365] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   24.323431][  T365] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   24.323683][  T365] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffde6a996b0
[   24.323932][  T365] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffde6a9a865
| [   24.333372][  T365] ------------[ cut here ]------------
| [   24.333564][  T365] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/365
| [   24.333843][  T365] Modules linked in:
| [   24.334325][  T365] Tainted: [W]=WARN
[   24.334483][  T365] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.334701][  T365] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.334926][  T365] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.335467][  T365] RSP: 0018:ffa00000005e7a78 EFLAGS: 00010286
[   24.335685][  T365] RAX: 00000000ffffffa6 RBX: ff11000009066580 RCX: 1ff40000000bcf15
[   24.335933][  T365] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000906663c
[   24.336193][  T365] RBP: ff1100000fcac000 R08: 1fe220000120ccc9 R09: ff1100000fc60b80
[   24.336446][  T365] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   24.336693][  T365] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fcac000
[   24.336940][  T365] FS:  00007fc43f985840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   24.337239][  T365] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.337465][  T365] CR2: 00007fc43fb91690 CR3: 000000000f522006 CR4: 0000000000771ef0
[   24.337714][  T365] PKRU: 55555554
[   24.337862][  T365] Call Trace:
[   24.338010][  T365]  <TASK>
[   24.338127][  T365]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.338326][  T365]  ? notifier_call_chain (kernel/notifier.c:85)
[   24.338519][  T365]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.338671][  T365]  register_netdevice (net/core/dev.c:11488)
[   24.338854][  T365]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   24.339067][  T365]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.339265][  T365]  register_netdev (net/core/dev.c:11552)
[   24.339459][  T365]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   24.339647][  T365]  ops_init (net/core/net_namespace.c:137)
[   24.339799][  T365]  setup_net (net/core/net_namespace.c:446)
[   24.339954][  T365]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   24.340134][  T365]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   24.340340][  T365]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   24.340526][  T365]  copy_net_ns (net/core/net_namespace.c:579)
[   24.340711][  T365]  create_new_namespaces (kernel/nsproxy.c:132)
[   24.340898][  T365]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   24.341084][  T365]  ksys_unshare (kernel/fork.c:3243)
[   24.341280][  T365]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   24.341471][  T365]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   24.341653][  T365]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   24.341836][  T365]  ? __ia32_sys_open (fs/open.c:1374)
[   24.342022][  T365]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   24.342215][  T365]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   24.342414][  T365]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.342600][  T365]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   24.342782][  T365]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.342964][  T365]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.343192][  T365] RIP: 0033:0x7fc43fc47bcb
[   24.343405][  T365] 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
[   24.343925][  T365] RSP: 002b:00007ffde6a97488 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   24.344188][  T365] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fc43fc47bcb
[   24.344445][  T365] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   24.344691][  T365] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   24.344941][  T365] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffde6a996b0
[   24.345201][  T365] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffde6a9a865
| [   24.350247][  T365] ------------[ cut here ]------------
| [   24.350444][  T365] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/365
| [   24.350722][  T365] Modules linked in:
| [   24.351198][  T365] Tainted: [W]=WARN
[   24.351356][  T365] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.351577][  T365] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.351801][  T365] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.352346][  T365] RSP: 0018:ffa00000005e7a68 EFLAGS: 00010286
[   24.352568][  T365] RAX: 00000000ffffffa6 RBX: ff1100000bc26c80 RCX: 1ff40000000bcf13
[   24.352812][  T365] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bc26d3c
[   24.353057][  T365] RBP: ff1100000f3d1000 R08: 1fe2200001784da9 R09: ff1100000fc60b80
[   24.353316][  T365] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   24.353575][  T365] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f3d1000
[   24.353825][  T365] FS:  00007fc43f985840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   24.354108][  T365] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.354342][  T365] CR2: 00007fc43fb91690 CR3: 000000000f522006 CR4: 0000000000771ef0
[   24.354595][  T365] PKRU: 55555554
[   24.354746][  T365] Call Trace:
[   24.354893][  T365]  <TASK>
[   24.355010][  T365]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.355208][  T365]  ? notifier_call_chain (kernel/notifier.c:85)
[   24.355401][  T365]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.355556][  T365]  register_netdevice (net/core/dev.c:11488)
[   24.355740][  T365]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   24.355959][  T365]  register_netdev (net/core/dev.c:11552)
[   24.356163][  T365]  sit_init_net (net/ipv6/sit.c:1860)
[   24.356357][  T365]  ops_init (net/core/net_namespace.c:137)
[   24.356509][  T365]  setup_net (net/core/net_namespace.c:446)
[   24.356659][  T365]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   24.356841][  T365]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   24.357027][  T365]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   24.357226][  T365]  copy_net_ns (net/core/net_namespace.c:579)
[   24.357423][  T365]  create_new_namespaces (kernel/nsproxy.c:132)
[   24.357608][  T365]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   24.357792][  T365]  ksys_unshare (kernel/fork.c:3243)
[   24.357977][  T365]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   24.358172][  T365]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   24.358362][  T365]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   24.358546][  T365]  ? __ia32_sys_open (fs/open.c:1374)
[   24.358736][  T365]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   24.358919][  T365]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   24.359101][  T365]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.359297][  T365]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   24.359484][  T365]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.359668][  T365]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.359883][  T365] RIP: 0033:0x7fc43fc47bcb
[   24.360071][  T365] 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
[   24.360618][  T365] RSP: 002b:00007ffde6a97488 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   24.360868][  T365] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fc43fc47bcb
[   24.361116][  T365] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   24.361391][  T365] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   24.361639][  T365] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffde6a996b0
[   24.361887][  T365] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffde6a9a865
| [   24.366802][  T365] ------------[ cut here ]------------
| [   24.366991][  T365] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/365
| [   24.367288][  T365] Modules linked in:
| [   24.367779][  T365] Tainted: [W]=WARN
[   24.368019][  T365] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.368250][  T365] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.368484][  T365] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.369104][  T365] RSP: 0018:ffa00000005e7a78 EFLAGS: 00010286
[   24.369341][  T365] RAX: 00000000ffffffa6 RBX: ff110000092b58c0 RCX: 1ff40000000bcf15
[   24.369681][  T365] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000092b597c
[   24.369932][  T365] RBP: ff1100001008c000 R08: 1fe2200001256b31 R09: ff1100000fc60b80
[   24.370194][  T365] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   24.370449][  T365] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100001008c000
[   24.370702][  T365] FS:  00007fc43f985840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   24.371075][  T365] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.371307][  T365] CR2: 00007fc43fb91690 CR3: 000000000f522006 CR4: 0000000000771ef0
[   24.371569][  T365] PKRU: 55555554
[   24.371806][  T365] Call Trace:
[   24.371956][  T365]  <TASK>
[   24.372074][  T365]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.372272][  T365]  ? notifier_call_chain (kernel/notifier.c:85)
[   24.372466][  T365]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.372706][  T365]  register_netdevice (net/core/dev.c:11488)
[   24.372894][  T365]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   24.373111][  T365]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.373310][  T365]  register_netdev (net/core/dev.c:11552)
[   24.373594][  T365]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   24.373782][  T365]  ops_init (net/core/net_namespace.c:137)
[   24.373935][  T365]  setup_net (net/core/net_namespace.c:446)
[   24.374087][  T365]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   24.374378][  T365]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   24.374566][  T365]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   24.374752][  T365]  copy_net_ns (net/core/net_namespace.c:579)
[   24.374939][  T365]  create_new_namespaces (kernel/nsproxy.c:132)
[   24.375135][  T365]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   24.375332][  T365]  ksys_unshare (kernel/fork.c:3243)
[   24.375527][  T365]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   24.375714][  T365]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   24.375899][  T365]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   24.376186][  T365]  ? __ia32_sys_open (fs/open.c:1374)
[   24.376383][  T365]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   24.376568][  T365]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   24.376751][  T365]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.377025][  T365]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   24.377227][  T365]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.377427][  T365]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.377733][  T365] RIP: 0033:0x7fc43fc47bcb
[   24.377924][  T365] 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
[   24.378566][  T365] RSP: 002b:00007ffde6a97488 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   24.378827][  T365] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fc43fc47bcb
[   24.379074][  T365] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   24.379342][  T365] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   24.379590][  T365] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffde6a996b0
[   24.379932][  T365] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffde6a9a865
| [   24.415641][  T366] ------------[ cut here ]------------
| [   24.415802][  T366] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/366
| [   24.416038][  T366] Modules linked in:
| [   24.416431][  T366] Tainted: [W]=WARN
[   24.416532][  T366] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.416702][  T366] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.416886][  T366] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.417374][  T366] RSP: 0018:ffa0000001027020 EFLAGS: 00010286
[   24.417543][  T366] RAX: 00000000ffffffa6 RBX: ff11000008d2b540 RCX: 1ff4000000204dca
[   24.417745][  T366] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000008d2b5fc
[   24.417942][  T366] RBP: ff110000090e9000 R08: 1fe22000011a56c1 R09: ff1100001001d158
[   24.418148][  T366] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[   24.418355][  T366] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   24.418557][  T366] FS:  00007f37b9ae2840(0000) GS:ff110000b3c47000(0000) knlGS:0000000000000000
[   24.418791][  T366] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.418958][  T366] CR2: 00007f37b9db21a0 CR3: 000000000f5b7004 CR4: 0000000000771ef0
[   24.419166][  T366] PKRU: 55555554
[   24.419270][  T366] Call Trace:
[   24.419385][  T366]  <TASK>
[   24.419457][  T366]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.419596][  T366]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.419719][  T366]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   24.419915][  T366]  __dev_notify_flags (net/core/dev.c:9787)
[   24.420085][  T366]  ? netif_change_name (net/core/dev.c:1495)
[   24.420224][  T366]  ? __dev_change_flags (net/core/dev.c:9752)
[   24.420366][  T366]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   24.420500][  T366]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.420637][  T366]  ? 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))
[   24.420773][  T366]  netif_change_flags (net/core/dev.c:9820)
[   24.420910][  T366]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   24.421046][  T366]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   24.421191][  T366]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   24.421329][  T366]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   24.421501][  T366]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.421635][  T366]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   24.421769][  T366]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   24.421902][  T366]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   24.422036][  T366]  ? __kernel_text_address (kernel/extable.c:79)
[   24.422234][  T366]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   24.422376][  T366]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.422512][  T366]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   24.422648][  T366]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.422782][  T366]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   24.422914][  T366]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.423049][  T366]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.423240][  T366]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   24.423381][  T366]  ? __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)
[   24.423514][  T366]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   24.423647][  T366]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   24.423783][  T366]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   24.423920][  T366]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   24.424058][  T366]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   24.424354][  T366]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.424491][  T366]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.424625][  T366]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   24.424762][  T366]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   24.424896][  T366]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.425034][  T366]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.425253][  T366]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.425394][  T366]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   24.425528][  T366]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.425664][  T366]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   24.425800][  T366]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   24.425935][  T366]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   24.426070][  T366]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.426293][  T366]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   24.426434][  T366]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.426566][  T366]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.426702][  T366]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   24.426838][  T366]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.426972][  T366]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   24.427110][  T366]  ? 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))
[   24.427332][  T366]  ? 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))
[   24.427473][  T366]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   24.427607][  T366]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   24.427741][  T366]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   24.427877][  T366]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   24.428012][  T366]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   24.428214][  T366]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   24.428355][  T366]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   24.428493][  T366]  ? copy_msghdr_from_user (net/socket.c:2635)
[   24.428628][  T366]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   24.428791][  T366]  ? move_addr_to_kernel (net/socket.c:258)
[   24.428928][  T366]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   24.429062][  T366]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   24.429272][  T366]  ___sys_sendmsg (net/socket.c:2752)
[   24.429412][  T366]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   24.429581][  T366]  ? copy_msghdr_from_user (net/socket.c:2603)
[   24.429728][  T366]  __sys_sendmsg (net/socket.c:2784)
[   24.429863][  T366]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   24.430000][  T366]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   24.430175][  T366]  ? 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)
[   24.430310][  T366]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.430449][  T366]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.430585][  T366]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   24.430720][  T366]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.430851][  T366]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.431015][  T366] RIP: 0033:0x7f37b9d1c08e
[   24.431161][  T366] 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
[   24.431645][  T366] RSP: 002b:00007ffe2d354430 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   24.431847][  T366] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f37b9d1c08e
[   24.432048][  T366] RDX: 0000000000000000 RSI: 00007ffe2d3544e0 RDI: 0000000000000005
[   24.432252][  T366] RBP: 00007ffe2d354440 R08: 0000000000000000 R09: 0000000000000000
[   24.432457][  T366] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ea22
[   24.432656][  T366] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe2d354bb0
| [   24.531070][  T369] ------------[ cut here ]------------
| [   24.531245][  T369] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/369
| [   24.531507][  T369] Modules linked in:
| [   24.531904][  T369] Tainted: [W]=WARN
[   24.532009][  T369] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.532190][  T369] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.532375][  T369] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.532864][  T369] RSP: 0018:ffa0000001046e30 EFLAGS: 00010286
[   24.533039][  T369] RAX: 00000000ffffffa6 RBX: ff110000026eae40 RCX: 1ff4000000208d8c
[   24.533255][  T369] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000026eaefc
[   24.533474][  T369] RBP: ff1100001006c000 R08: 1fe22000004dd5e1 R09: ff1100000b190b80
[   24.533678][  T369] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   24.533884][  T369] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000203f504
[   24.534093][  T369] FS:  00007fa7f0f23840(0000) GS:ff110000b3c47000(0000) knlGS:0000000000000000
[   24.534348][  T369] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.534526][  T369] CR2: 00000000004eb188 CR3: 0000000009d01001 CR4: 0000000000771ef0
[   24.534736][  T369] PKRU: 55555554
[   24.534841][  T369] Call Trace:
[   24.534944][  T369]  <TASK>
[   24.535016][  T369]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.535160][  T369]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.535266][  T369]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[   24.535446][  T369]  __dev_notify_flags (net/core/dev.c:9787)
[   24.535590][  T369]  ? netif_change_name (net/core/dev.c:1495)
[   24.535731][  T369]  ? rtnl_newlink (net/core/rtnetlink.c:4150)
[   24.535869][  T369]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   24.536006][  T369]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   24.536151][  T369]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[   24.536294][  T369]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.536438][  T369]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   24.536576][  T369]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   24.536714][  T369]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   24.536852][  T369]  ? queue_delayed_work_on (kernel/workqueue.c:2616 (discriminator 6))
[   24.536993][  T369]  veth_newlink (drivers/net/veth.c:1871)
[   24.537132][  T369]  ? veth_poll_controller (drivers/net/veth.c:1470)
[   24.537275][  T369]  ? kasan_save_stack (mm/kasan/common.c:57)
[   24.537420][  T369]  ? kasan_save_track (mm/kasan/common.c:78)
[   24.537558][  T369]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   24.537712][  T369]  ? __kvmalloc_node_noprof (mm/slub.c:5296 mm/slub.c:6832)
[   24.537851][  T369]  ? alloc_netdev_mqs (net/core/dev.c:12129 (discriminator 7))
[   24.537989][  T369]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   24.538127][  T369]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   24.538272][  T369]  ? rtnl_create_link (net/core/rtnetlink.c:3720)
[   24.538417][  T369]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   24.538557][  T369]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   24.538695][  T369]  ? __dev_get_by_name (net/core/dev.c:883)
[   24.538833][  T369]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   24.538977][  T369]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   24.539119][  T369]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   24.539321][  T369]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.539521][  T369]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.539659][  T369]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   24.539800][  T369]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   24.539940][  T369]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.540083][  T369]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.540274][  T369]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   24.540418][  T369]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   24.540557][  T369]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   24.540697][  T369]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.540834][  T369]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   24.540977][  T369]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.541115][  T369]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.541257][  T369]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   24.541399][  T369]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.541537][  T369]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   24.541678][  T369]  ? 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))
[   24.541815][  T369]  ? 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))
[   24.541957][  T369]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   24.542098][  T369]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   24.542242][  T369]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   24.542385][  T369]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   24.542524][  T369]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   24.542662][  T369]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   24.542803][  T369]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   24.542942][  T369]  ? copy_msghdr_from_user (net/socket.c:2635)
[   24.543082][  T369]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   24.543258][  T369]  ? move_addr_to_kernel (net/socket.c:258)
[   24.543405][  T369]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.543544][  T369]  ? rcu_read_unlock (./include/linux/rcupdate.h:867 (discriminator 5))
[   24.543682][  T369]  ___sys_sendmsg (net/socket.c:2752)
[   24.543821][  T369]  ? wp_page_copy (./include/linux/pgtable.h:117 mm/memory.c:3976)
[   24.543961][  T369]  ? copy_msghdr_from_user (net/socket.c:2603)
[   24.544104][  T369]  ? do_wp_page (./include/linux/pgtable.h:117 mm/memory.c:4331)
[   24.544251][  T369]  ? 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))
[   24.544395][  T369]  __sys_sendmsg (net/socket.c:2784)
[   24.544535][  T369]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   24.544678][  T369]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.544816][  T369]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.544954][  T369]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.545091][  T369]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   24.545235][  T369]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.545378][  T369]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.545549][  T369] RIP: 0033:0x7fa7f115d08e
[   24.545694][  T369] 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
[   24.546192][  T369] RSP: 002b:00007ffc16e0bb60 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   24.546403][  T369] RAX: ffffffffffffffda RBX: 00007ffc16e0c310 RCX: 00007fa7f115d08e
[   24.546607][  T369] RDX: 0000000000000000 RSI: 00007ffc16e0bc10 RDI: 0000000000000005
[   24.546812][  T369] RBP: 00007ffc16e0bb70 R08: 0000000000000000 R09: 0000000000000000
[   24.547018][  T369] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ea22
[   24.547226][  T369] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc16e0c2e8
| [   24.554827][  T369] ------------[ cut here ]------------
| [   24.554988][  T369] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/369
| [   24.555738][  T369] Modules linked in:
| [   24.556123][  T369] Tainted: [W]=WARN
[   24.556284][  T369] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.556518][  T369] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.556697][  T369] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.557244][  T369] RSP: 0018:ffa00000010471b0 EFLAGS: 00010286
[   24.557421][  T369] RAX: 00000000ffffffa6 RBX: ff1100000b997540 RCX: 1ff4000000208dfc
[   24.557625][  T369] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b9975fc
[   24.557829][  T369] RBP: ff11000010049000 R08: 1fe2200001732ec1 R09: ff1100000b190b80
[   24.558032][  T369] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   24.558293][  T369] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffb6403b20
[   24.558504][  T369] FS:  00007fa7f0f23840(0000) GS:ff110000b3c47000(0000) knlGS:0000000000000000
[   24.558741][  T369] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.558913][  T369] CR2: 00000000004eb188 CR3: 0000000009d01001 CR4: 0000000000771ef0
[   24.559119][  T369] PKRU: 55555554
[   24.559277][  T369] Call Trace:
[   24.559384][  T369]  <TASK>
[   24.559455][  T369]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.559594][  T369]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.559699][  T369]  __dev_notify_flags (net/core/dev.c:9787)
[   24.559839][  T369]  ? netif_change_name (net/core/dev.c:1495)
[   24.559977][  T369]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   24.560113][  T369]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   24.560310][  T369]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   24.560454][  T369]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   24.560593][  T369]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   24.560731][  T369]  ? __dev_get_by_name (net/core/dev.c:883)
[   24.560868][  T369]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   24.561012][  T369]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   24.561208][  T369]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   24.561350][  T369]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.561489][  T369]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.561626][  T369]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   24.561763][  T369]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   24.561899][  T369]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.562041][  T369]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.562236][  T369]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   24.562380][  T369]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   24.562520][  T369]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   24.562658][  T369]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.562795][  T369]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   24.562935][  T369]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.563071][  T369]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.563265][  T369]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   24.563409][  T369]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.563548][  T369]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   24.563690][  T369]  ? 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))
[   24.563827][  T369]  ? 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))
[   24.563966][  T369]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   24.564104][  T369]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   24.564298][  T369]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   24.564444][  T369]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   24.564583][  T369]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   24.564722][  T369]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   24.564860][  T369]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   24.564998][  T369]  ? copy_msghdr_from_user (net/socket.c:2635)
[   24.565136][  T369]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   24.565366][  T369]  ? move_addr_to_kernel (net/socket.c:258)
[   24.565504][  T369]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.565641][  T369]  ? rcu_read_unlock (./include/linux/rcupdate.h:867 (discriminator 5))
[   24.565782][  T369]  ___sys_sendmsg (net/socket.c:2752)
[   24.565919][  T369]  ? wp_page_copy (./include/linux/pgtable.h:117 mm/memory.c:3976)
[   24.566056][  T369]  ? copy_msghdr_from_user (net/socket.c:2603)
[   24.566253][  T369]  ? do_wp_page (./include/linux/pgtable.h:117 mm/memory.c:4331)
[   24.566399][  T369]  ? 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))
[   24.566537][  T369]  __sys_sendmsg (net/socket.c:2784)
[   24.566676][  T369]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   24.566817][  T369]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.566957][  T369]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.567095][  T369]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.567288][  T369]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   24.567432][  T369]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.567569][  T369]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.567738][  T369] RIP: 0033:0x7fa7f115d08e
[   24.567880][  T369] 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
[   24.568439][  T369] RSP: 002b:00007ffc16e0bb60 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   24.568645][  T369] RAX: ffffffffffffffda RBX: 00007ffc16e0c310 RCX: 00007fa7f115d08e
[   24.568849][  T369] RDX: 0000000000000000 RSI: 00007ffc16e0bc10 RDI: 0000000000000005
[   24.569054][  T369] RBP: 00007ffc16e0bb70 R08: 0000000000000000 R09: 0000000000000000
[   24.569315][  T369] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ea22
[   24.569523][  T369] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc16e0c2e8
| [   24.855430][  T378] ------------[ cut here ]------------
| [   24.855653][  T378] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/378
| [   24.855940][  T378] Modules linked in:
| [   24.856930][  T378] Tainted: [W]=WARN
[   24.857080][  T378] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.857313][  T378] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.857551][  T378] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.858080][  T378] RSP: 0018:ffa00000010c7020 EFLAGS: 00010286
[   24.858315][  T378] RAX: 00000000ffffffa6 RBX: ff1100000d2b3c40 RCX: 1ff4000000218dca
[   24.858581][  T378] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d2b3cfc
[   24.858830][  T378] RBP: ff11000010049000 R08: 1fe2200001a567a1 R09: ff110000100e5158
[   24.859081][  T378] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[   24.859348][  T378] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   24.859600][  T378] FS:  00007f0f3bb5a840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   24.859887][  T378] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.860108][  T378] CR2: 0000000031a91988 CR3: 000000000a76b001 CR4: 0000000000771ef0
[   24.860379][  T378] PKRU: 55555554
[   24.860529][  T378] Call Trace:
[   24.860681][  T378]  <TASK>
[   24.860799][  T378]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.860986][  T378]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.861154][  T378]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   24.861344][  T378]  __dev_notify_flags (net/core/dev.c:9787)
[   24.861536][  T378]  ? netif_change_name (net/core/dev.c:1495)
[   24.861725][  T378]  ? __dev_change_flags (net/core/dev.c:9752)
[   24.861910][  T378]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   24.862093][  T378]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.862290][  T378]  ? 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))
[   24.862484][  T378]  netif_change_flags (net/core/dev.c:9820)
[   24.862670][  T378]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   24.862856][  T378]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   24.863046][  T378]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   24.863243][  T378]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   24.863473][  T378]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.863659][  T378]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   24.863842][  T378]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   24.864024][  T378]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   24.864223][  T378]  ? __kernel_text_address (kernel/extable.c:79)
[   24.864418][  T378]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   24.864604][  T378]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.864786][  T378]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   24.864970][  T378]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.865167][  T378]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   24.865357][  T378]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.865541][  T378]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.865726][  T378]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   24.865913][  T378]  ? __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)
[   24.866099][  T378]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   24.866297][  T378]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   24.866488][  T378]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   24.866674][  T378]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   24.866861][  T378]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   24.867050][  T378]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.867249][  T378]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.867443][  T378]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   24.867627][  T378]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   24.867810][  T378]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.867996][  T378]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.868190][  T378]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.868382][  T378]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   24.868566][  T378]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.868751][  T378]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   24.868933][  T378]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   24.869116][  T378]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   24.869312][  T378]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.869503][  T378]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   24.869688][  T378]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.869868][  T378]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.870052][  T378]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   24.870251][  T378]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.870446][  T378]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   24.870638][  T378]  ? 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))
[   24.870821][  T378]  ? 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))
[   24.871008][  T378]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   24.871206][  T378]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   24.871405][  T378]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   24.871598][  T378]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   24.871786][  T378]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   24.871970][  T378]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   24.872170][  T378]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   24.872364][  T378]  ? copy_msghdr_from_user (net/socket.c:2635)
[   24.872546][  T378]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   24.872760][  T378]  ? move_addr_to_kernel (net/socket.c:258)
[   24.872948][  T378]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   24.873130][  T378]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   24.873329][  T378]  ___sys_sendmsg (net/socket.c:2752)
[   24.873521][  T378]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   24.873739][  T378]  ? copy_msghdr_from_user (net/socket.c:2603)
[   24.873933][  T378]  __sys_sendmsg (net/socket.c:2784)
[   24.874119][  T378]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   24.874313][  T378]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   24.874546][  T378]  ? 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)
[   24.874731][  T378]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.874916][  T378]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.875101][  T378]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   24.875298][  T378]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.875487][  T378]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.875703][  T378] RIP: 0033:0x7f0f3bd9408e
[   24.875897][  T378] 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
[   24.876439][  T378] RSP: 002b:00007ffde1d800f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   24.876693][  T378] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f0f3bd9408e
[   24.876946][  T378] RDX: 0000000000000000 RSI: 00007ffde1d801a0 RDI: 0000000000000005
[   24.877208][  T378] RBP: 00007ffde1d80100 R08: 0000000000000000 R09: 0000000000000000
[   24.877467][  T378] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ea23
[   24.877718][  T378] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffde1d80878
| [   24.913807][  T379] ------------[ cut here ]------------
| [   24.913981][  T379] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/379
| [   24.914627][  T379] Modules linked in:
| [   24.915019][  T379] Tainted: [W]=WARN
[   24.915122][  T379] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.915298][  T379] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.915482][  T379] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.915975][  T379] RSP: 0018:ffa00000010d7020 EFLAGS: 00010286
[   24.916154][  T379] RAX: 00000000ffffffa6 RBX: ff1100000d1a3380 RCX: 1ff400000021adca
[   24.916365][  T379] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d1a343c
[   24.916566][  T379] RBP: ff1100001006c000 R08: 1fe2200001a34689 R09: ff110000100e0b58
[   24.916769][  T379] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[   24.916974][  T379] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   24.917184][  T379] FS:  00007f1ed6e80840(0000) GS:ff110000b3c47000(0000) knlGS:0000000000000000
[   24.917427][  T379] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.917597][  T379] CR2: 00007f1ed71501a0 CR3: 000000000f0ff001 CR4: 0000000000771ef0
[   24.917802][  T379] PKRU: 55555554
[   24.917906][  T379] Call Trace:
[   24.918008][  T379]  <TASK>
[   24.918079][  T379]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.918223][  T379]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.918327][  T379]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   24.918472][  T379]  __dev_notify_flags (net/core/dev.c:9787)
[   24.918613][  T379]  ? netif_change_name (net/core/dev.c:1495)
[   24.918749][  T379]  ? __dev_change_flags (net/core/dev.c:9752)
[   24.918887][  T379]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   24.919023][  T379]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.919166][  T379]  ? 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))
[   24.919305][  T379]  netif_change_flags (net/core/dev.c:9820)
[   24.919447][  T379]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   24.919583][  T379]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   24.919721][  T379]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   24.919860][  T379]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   24.920029][  T379]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.920171][  T379]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   24.920308][  T379]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   24.920452][  T379]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   24.920645][  T379]  ? __kernel_text_address (kernel/extable.c:79)
[   24.920846][  T379]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   24.921050][  T379]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.921262][  T379]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   24.921470][  T379]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.921669][  T379]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   24.921824][  T379]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.921960][  T379]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.922096][  T379]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   24.922247][  T379]  ? __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)
[   24.922389][  T379]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   24.922526][  T379]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   24.922663][  T379]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   24.922802][  T379]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   24.922941][  T379]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   24.923080][  T379]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.923222][  T379]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.923365][  T379]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   24.923502][  T379]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   24.923636][  T379]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.923775][  T379]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.923910][  T379]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.924046][  T379]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   24.924187][  T379]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.924326][  T379]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   24.924468][  T379]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   24.924605][  T379]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   24.924741][  T379]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.924875][  T379]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   24.925013][  T379]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.925154][  T379]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.925293][  T379]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   24.925437][  T379]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.925574][  T379]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   24.925713][  T379]  ? 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))
[   24.925850][  T379]  ? 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))
[   24.925988][  T379]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   24.926125][  T379]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   24.926268][  T379]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   24.926411][  T379]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   24.926552][  T379]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   24.926689][  T379]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   24.926828][  T379]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   24.926964][  T379]  ? copy_msghdr_from_user (net/socket.c:2635)
[   24.927099][  T379]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   24.927276][  T379]  ? move_addr_to_kernel (net/socket.c:258)
[   24.927417][  T379]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   24.927556][  T379]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   24.927694][  T379]  ___sys_sendmsg (net/socket.c:2752)
[   24.927829][  T379]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   24.927999][  T379]  ? copy_msghdr_from_user (net/socket.c:2603)
[   24.928153][  T379]  __sys_sendmsg (net/socket.c:2784)
[   24.928290][  T379]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   24.928431][  T379]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   24.928605][  T379]  ? 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)
[   24.928745][  T379]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.928882][  T379]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.929018][  T379]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   24.929158][  T379]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.929296][  T379]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.929471][  T379] RIP: 0033:0x7f1ed70ba08e
[   24.929614][  T379] 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
[   24.930100][  T379] RSP: 002b:00007fff5b382800 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   24.930311][  T379] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f1ed70ba08e
[   24.930522][  T379] RDX: 0000000000000000 RSI: 00007fff5b3828b0 RDI: 0000000000000005
[   24.930724][  T379] RBP: 00007fff5b382810 R08: 0000000000000000 R09: 0000000000000000
[   24.930928][  T379] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ea23
[   24.931132][  T379] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff5b382f88
| [   24.941266][   T72] ------------[ cut here ]------------
| [   24.941431][   T72] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/72
| [   24.941677][   T72] Modules linked in:
| [   24.942065][   T72] Tainted: [W]=WARN
[   24.942230][   T72] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.942397][   T72] Workqueue: events_unbound linkwatch_event
[   24.942614][   T72] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.942830][   T72] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.943281][   T72] RSP: 0018:ffa00000004d79e0 EFLAGS: 00010286
[   24.943455][   T72] RAX: 00000000ffffffa6 RBX: ff1100000d22f8c0 RCX: 1ff400000009af02
[   24.943642][   T72] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d22f97c
[   24.943828][   T72] RBP: ff11000010049000 R08: 1fe2200001a45f31 R09: ff1100000976d1a8
[   24.944014][   T72] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000000
[   24.944207][   T72] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   24.944402][   T72] FS:  0000000000000000(0000) GS:ff110000b3c47000(0000) knlGS:0000000000000000
[   24.944620][   T72] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.944777][   T72] CR2: 00007f1ed71501a0 CR3: 000000003c54d002 CR4: 0000000000771ef0
[   24.944965][   T72] PKRU: 55555554
[   24.945059][   T72] Call Trace:
[   24.945167][   T72]  <TASK>
[   24.945235][   T72]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.945367][   T72]  ? notifier_call_chain (kernel/notifier.c:85)
[   24.945492][   T72]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.945589][   T72]  netif_state_change (net/core/dev.c:1605)
[   24.945717][   T72]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[   24.945874][   T72]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[   24.946001][   T72]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   24.946127][   T72]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   24.946261][   T72]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   24.946391][   T72]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   24.946515][   T72]  process_one_work (kernel/workqueue.c:3314)
[   24.946644][   T72]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   24.946768][   T72]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.946899][   T72]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   24.947025][   T72]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   24.947154][   T72]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   24.947282][   T72]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   24.947413][   T72]  kthread (kernel/kthread.c:436)
[   24.947507][   T72]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   24.947665][   T72]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.947790][   T72]  ret_from_fork (arch/x86/kernel/process.c:158)
[   24.947917][   T72]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   24.948072][   T72]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   24.948202][   T72]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.948328][   T72]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   25.867681][   T72] ------------[ cut here ]------------
| [   25.867891][   T72] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/72
| [   25.868136][   T72] Modules linked in:
| [   25.868529][   T72] Tainted: [W]=WARN
[   25.868619][   T72] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   25.868772][   T72] Workqueue: events_unbound linkwatch_event
[   25.868924][   T72] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   25.869078][   T72] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   25.869518][   T72] RSP: 0018:ffa00000004d79e0 EFLAGS: 00010286
[   25.869675][   T72] RAX: 00000000ffffffa6 RBX: ff1100000d22f000 RCX: 1ff400000009af02
[   25.869852][   T72] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d22f0bc
[   25.870058][   T72] RBP: ff1100001006c000 R08: 1fe2200001a45e19 R09: ff1100000976d1a8
[   25.870255][   T72] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000000
[   25.870437][   T72] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   25.870616][   T72] FS:  0000000000000000(0000) GS:ff110000b3c47000(0000) knlGS:0000000000000000
[   25.870844][   T72] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.871024][   T72] CR2: 00007f055a016808 CR3: 000000003c54d002 CR4: 0000000000771ef0
[   25.871209][   T72] PKRU: 55555554
[   25.871298][   T72] Call Trace:
[   25.871392][   T72]  <TASK>
[   25.871455][   T72]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   25.871574][   T72]  ? notifier_call_chain (kernel/notifier.c:85)
[   25.871699][   T72]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   25.871791][   T72]  netif_state_change (net/core/dev.c:1605)
[   25.871911][   T72]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[   25.872060][   T72]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[   25.872183][   T72]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   25.872305][   T72]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   25.872432][   T72]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   25.872551][   T72]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   25.872671][   T72]  process_one_work (kernel/workqueue.c:3314)
[   25.872796][   T72]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   25.872915][   T72]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   25.873061][   T72]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   25.873194][   T72]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   25.873334][   T72]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   25.873474][   T72]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   25.873592][   T72]  kthread (kernel/kthread.c:436)
[   25.873683][   T72]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   25.873837][   T72]  ? kthread_affine_node (kernel/kthread.c:378)
[   25.873967][   T72]  ret_from_fork (arch/x86/kernel/process.c:158)
[   25.874087][   T72]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   25.874242][   T72]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   25.874389][   T72]  ? kthread_affine_node (kernel/kthread.c:378)
[   25.874508][   T72]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   27.626086][   T12] ------------[ cut here ]------------
| [   27.626307][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   27.626556][   T12] Modules linked in:
| [   27.626931][   T12] Tainted: [W]=WARN
[   27.627023][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.627180][   T12] Workqueue: netns cleanup_net
[   27.627309][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   27.627469][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   27.627891][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   27.628041][   T12] RAX: 00000000ffffffa6 RBX: ff1100000ea443c0 RCX: 1ff4000000018eed
[   27.628228][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ea4447c
[   27.628409][   T12] RBP: ff1100000fdc1000 R08: 1fe2200001d48891 R09: ff11000001aed1d0
[   27.628587][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   27.628770][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   27.628952][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   27.629170][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.629322][   T12] CR2: 000055cac4457d5c CR3: 000000000a2c9005 CR4: 0000000000771ef0
[   27.629607][   T12] PKRU: 55555554
[   27.629698][   T12] Call Trace:
[   27.629791][   T12]  <TASK>
[   27.629855][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   27.630010][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   27.630165][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   27.630286][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   27.630422][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   27.630543][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   27.630665][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   27.630785][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   27.630908][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   27.631026][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   27.631153][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   27.631273][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   27.631396][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   27.631515][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   27.631630][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   27.631752][   T12]  process_one_work (kernel/workqueue.c:3314)
[   27.631873][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   27.631989][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   27.632113][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   27.632239][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   27.632360][   T12]  kthread (kernel/kthread.c:436)
[   27.632454][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.632599][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   27.632717][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   27.632837][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   27.632988][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   27.633108][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   27.633231][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   27.635754][   T12] ------------[ cut here ]------------
| [   27.635940][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   27.636179][   T12] Modules linked in:
| [   27.636538][   T12] Tainted: [W]=WARN
[   27.636626][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.636773][   T12] Workqueue: netns cleanup_net
[   27.636970][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   27.637121][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   27.637629][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   27.637780][   T12] RAX: 00000000ffffffa6 RBX: ff1100000ea44ac0 RCX: 1ff4000000018eed
[   27.638025][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ea44b7c
[   27.638203][   T12] RBP: ff1100000f10c000 R08: 1fe2200001d48971 R09: ff11000001aed1d0
[   27.638383][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   27.638626][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   27.638799][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   27.639002][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.639230][   T12] CR2: 000055cac4457d5c CR3: 000000003c54d006 CR4: 0000000000771ef0
[   27.639432][   T12] PKRU: 55555554
[   27.639523][   T12] Call Trace:
[   27.639681][   T12]  <TASK>
[   27.639742][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   27.639889][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   27.640030][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   27.640224][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   27.640349][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   27.640467][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   27.640582][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   27.640770][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   27.640888][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   27.641003][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   27.641123][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   27.641314][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   27.641435][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   27.641551][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   27.641666][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   27.641856][   T12]  process_one_work (kernel/workqueue.c:3314)
[   27.641976][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   27.642096][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   27.642220][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   27.642416][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   27.642532][   T12]  kthread (kernel/kthread.c:436)
[   27.642621][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.642764][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   27.642880][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   27.642997][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   27.643148][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   27.643266][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   27.643388][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   27.645701][   T12] ------------[ cut here ]------------
| [   27.645815][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   27.646110][   T12] Modules linked in:
| [   27.646943][   T12] Tainted: [W]=WARN
[   27.647030][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.647226][   T12] Workqueue: netns cleanup_net
[   27.647397][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   27.647548][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   27.647957][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   27.648106][   T12] RAX: 00000000ffffffa6 RBX: ff1100000ea451c0 RCX: 1ff4000000018eed
[   27.648325][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ea4527c
[   27.648499][   T12] RBP: ff11000008c91000 R08: 1fe2200001d48a51 R09: ff11000001aed1d0
[   27.648671][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   27.648844][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   27.649017][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   27.649265][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.649414][   T12] CR2: 000055cac4457d5c CR3: 000000003c54d006 CR4: 0000000000771ef0
[   27.649586][   T12] PKRU: 55555554
[   27.649673][   T12] Call Trace:
[   27.649760][   T12]  <TASK>
[   27.649822][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   27.649969][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   27.650112][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   27.650275][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   27.650396][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   27.650512][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   27.650627][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   27.650746][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   27.650864][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   27.650978][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   27.651097][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   27.651260][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   27.651380][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   27.651502][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   27.651618][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   27.651735][   T12]  process_one_work (kernel/workqueue.c:3314)
[   27.651858][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   27.651976][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   27.652096][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   27.652263][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   27.652383][   T12]  kthread (kernel/kthread.c:436)
[   27.652470][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.652612][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   27.652728][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   27.652844][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   27.652990][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   27.653105][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   27.653274][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   27.655775][   T12] ------------[ cut here ]------------
| [   27.655890][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   27.656115][   T12] Modules linked in:
| [   27.656474][   T12] Tainted: [W]=WARN
[   27.656562][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.656787][   T12] Workqueue: netns cleanup_net
[   27.656907][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   27.657062][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   27.657483][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   27.657630][   T12] RAX: 00000000ffffffa6 RBX: ff1100000ea45540 RCX: 1ff4000000018eed
[   27.657881][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ea455fc
[   27.658051][   T12] RBP: ff110000051f1000 R08: 1fe2200001d48ac1 R09: ff11000001aed1d0
[   27.658303][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   27.658481][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   27.658660][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   27.658935][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.659079][   T12] CR2: 000055cac4457d5c CR3: 000000003c54d006 CR4: 0000000000771ef0
[   27.659339][   T12] PKRU: 55555554
[   27.659431][   T12] Call Trace:
[   27.659517][   T12]  <TASK>
[   27.659577][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   27.659723][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   27.659938][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   27.660053][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   27.660182][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   27.660298][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   27.660492][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   27.660609][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   27.660726][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   27.660841][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   27.661032][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   27.661152][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   27.661267][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   27.661393][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   27.661583][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   27.661700][   T12]  process_one_work (kernel/workqueue.c:3314)
[   27.661819][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   27.661933][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   27.662124][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   27.662340][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   27.662462][   T12]  kthread (kernel/kthread.c:436)
[   27.662550][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.662765][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   27.662880][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   27.662996][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   27.663230][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   27.663351][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   27.663467][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   27.671643][   T12] ------------[ cut here ]------------
| [   27.671773][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   27.672008][   T12] Modules linked in:
| [   27.672381][   T12] Tainted: [W]=WARN
[   27.672470][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.672615][   T12] Workqueue: netns cleanup_net
[   27.672736][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   27.672905][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   27.673337][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   27.673488][   T12] RAX: 00000000ffffffa6 RBX: ff1100000ea458c0 RCX: 1ff4000000018eed
[   27.673660][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ea4597c
[   27.673832][   T12] RBP: ff11000009899000 R08: 1fe2200001d48b31 R09: ff11000001aed1d0
[   27.674004][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   27.674182][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   27.674357][   T12] FS:  0000000000000000(0000) GS:ff110000b3c47000(0000) knlGS:0000000000000000
[   27.674560][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.674705][   T12] CR2: 000055cac4457d5c CR3: 000000000a2c9005 CR4: 0000000000771ef0
[   27.674880][   T12] PKRU: 55555554
[   27.674966][   T12] Call Trace:
[   27.675057][   T12]  <TASK>
[   27.675118][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   27.675270][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   27.675417][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   27.675533][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   27.675650][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   27.675765][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   27.675882][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   27.675999][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   27.676118][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   27.676237][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   27.676397][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   27.676515][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   27.676629][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   27.676746][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   27.676860][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   27.676977][   T12]  process_one_work (kernel/workqueue.c:3314)
[   27.677097][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   27.677217][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   27.677341][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   27.677467][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   27.677583][   T12]  kthread (kernel/kthread.c:436)
[   27.677673][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.677817][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   27.677933][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   27.678049][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   27.678202][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   27.678323][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   27.678445][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   27.691070][   T12] ------------[ cut here ]------------
| [   27.691209][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   27.691459][   T12] Modules linked in:
| [   27.691831][   T12] Tainted: [W]=WARN
[   27.691922][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.692075][   T12] Workqueue: netns cleanup_net
[   27.692210][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   27.692372][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   27.692814][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   27.692971][   T12] RAX: 00000000ffffffa6 RBX: ff1100000ea45a80 RCX: 1ff4000000018eaf
[   27.693160][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ea45b3c
[   27.693352][   T12] RBP: ff1100001006c000 R08: 1fe2200001d48b69 R09: ff11000001aed1d0
[   27.693534][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   27.693719][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000010049000
[   27.693902][   T12] FS:  0000000000000000(0000) GS:ff110000b3c47000(0000) knlGS:0000000000000000
[   27.694116][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.694332][   T12] CR2: 000055cac4457d5c CR3: 000000003c54d004 CR4: 0000000000771ef0
[   27.694525][   T12] PKRU: 55555554
[   27.694622][   T12] Call Trace:
[   27.694717][   T12]  <TASK>
[   27.694781][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   27.694906][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   27.695001][   T12]  netif_close_many (net/core/dev.c:1804)
[   27.695124][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   27.695301][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   27.695430][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   27.695558][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   27.695681][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   27.695837][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   27.695991][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   27.696114][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   27.696320][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   27.696448][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   27.696573][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   27.696727][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   27.696851][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   27.696976][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   27.697117][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   27.697290][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   27.697417][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   27.697545][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   27.697667][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   27.697793][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   27.697917][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   27.698040][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   27.698214][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   27.698337][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   27.698472][   T12]  process_one_work (kernel/workqueue.c:3314)
[   27.698600][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   27.698724][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   27.698853][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   27.698981][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   27.699104][   T12]  kthread (kernel/kthread.c:436)
[   27.699247][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.699408][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   27.699532][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   27.699656][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   27.699812][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   27.699936][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   27.700057][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   27.703138][   T12] ------------[ cut here ]------------
| [   27.703267][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   27.703514][   T12] Modules linked in:
| [   27.703888][   T12] Tainted: [W]=WARN
[   27.703981][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.704133][   T12] Workqueue: netns cleanup_net
[   27.704272][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   27.704436][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   27.704876][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   27.705031][   T12] RAX: 00000000ffffffa6 RBX: ff1100000cc84ac0 RCX: 1ff4000000018eaf
[   27.705219][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cc84b7c
[   27.705412][   T12] RBP: ff11000010049000 R08: 1fe2200001990971 R09: ff11000001aed1d0
[   27.705606][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   27.705788][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f2ec000
[   27.705980][   T12] FS:  0000000000000000(0000) GS:ff110000b3c47000(0000) knlGS:0000000000000000
[   27.706208][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.706821][   T12] CR2: 000055cac4457d5c CR3: 000000003c54d004 CR4: 0000000000771ef0
[   27.707005][   T12] PKRU: 55555554
[   27.707099][   T12] Call Trace:
[   27.707198][   T12]  <TASK>
[   27.707272][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   27.707404][   T12]  ? notifier_call_chain (kernel/notifier.c:85)
[   27.707528][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   27.707623][   T12]  netif_close_many (net/core/dev.c:1804)
[   27.707755][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   27.707879][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   27.708002][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   27.708128][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   27.708257][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   27.708437][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   27.708600][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   27.708730][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   27.708889][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   27.709018][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   27.709149][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   27.709304][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   27.709439][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   27.709577][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   27.709703][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   27.709826][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   27.709951][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   27.710077][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   27.710204][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   27.710329][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   27.710460][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   27.710582][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   27.710707][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   27.710828][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   27.710953][   T12]  process_one_work (kernel/workqueue.c:3314)
[   27.711079][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   27.711209][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   27.711424][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   27.711631][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   27.711754][   T12]  kthread (kernel/kthread.c:436)
[   27.711925][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.712159][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   27.712283][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   27.712412][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   27.712583][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   27.712706][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   27.712828][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   27.715926][   T12] ------------[ cut here ]------------
| [   27.716050][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   27.716294][   T12] Modules linked in:
| [   27.716678][   T12] Tainted: [W]=WARN
[   27.716770][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.716922][   T12] Workqueue: netns cleanup_net
[   27.717048][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   27.717212][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   27.717653][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   27.717808][   T12] RAX: 00000000ffffffa6 RBX: ff1100000d266580 RCX: 1ff4000000018eaf
[   27.717990][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d26663c
[   27.718179][   T12] RBP: ff1100000f2ec000 R08: 1fe2200001a4ccc9 R09: ff11000001aed1d0
[   27.718365][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   27.718546][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000000c77e0
[   27.718730][   T12] FS:  0000000000000000(0000) GS:ff110000b3c47000(0000) knlGS:0000000000000000
[   27.718943][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.719108][   T12] CR2: 000055cac4457d5c CR3: 000000003c54d004 CR4: 0000000000771ef0
[   27.719396][   T12] PKRU: 55555554
[   27.719487][   T12] Call Trace:
[   27.719579][   T12]  <TASK>
[   27.719643][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   27.719768][   T12]  ? notifier_call_chain (kernel/notifier.c:85)
[   27.719892][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   27.719985][   T12]  netif_close_many (net/core/dev.c:1804)
[   27.720107][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   27.720322][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   27.720450][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   27.720572][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   27.720695][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   27.720848][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   27.721003][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   27.721126][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   27.721327][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   27.721463][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   27.721584][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   27.721738][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   27.721862][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   27.721987][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   27.722110][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   27.722237][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   27.722363][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   27.722491][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   27.722613][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   27.722738][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   27.722860][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   27.722984][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   27.723108][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   27.723234][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   27.723361][   T12]  process_one_work (kernel/workqueue.c:3314)
[   27.723487][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   27.723610][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   27.723738][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   27.723865][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   27.723986][   T12]  kthread (kernel/kthread.c:436)
[   27.724079][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.724235][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   27.724361][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   27.724484][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   27.724640][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   27.724762][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   27.724884][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   27.727036][   T12] ------------[ cut here ]------------
| [   27.727677][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   27.727907][   T12] Modules linked in:
| [   27.728308][   T12] Tainted: [W]=WARN
[   27.728415][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.728567][   T12] Workqueue: netns cleanup_net
[   27.728738][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   27.728891][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   27.729367][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   27.729518][   T12] RAX: 00000000ffffffa6 RBX: ff1100000d2671c0 RCX: 1ff4000000018ed5
[   27.729695][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d26727c
[   27.729871][   T12] RBP: ff1100001006c000 R08: 1fe2200001a4ce51 R09: ff11000001aed1d0
[   27.730048][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   27.730270][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   27.730454][   T12] FS:  0000000000000000(0000) GS:ff110000b3c47000(0000) knlGS:0000000000000000
[   27.730663][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.730810][   T12] CR2: 000055cac4457d5c CR3: 000000003c54d004 CR4: 0000000000771ef0
[   27.730987][   T12] PKRU: 55555554
[   27.731075][   T12] Call Trace:
[   27.731209][   T12]  <TASK>
[   27.731270][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   27.731427][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   27.731576][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   27.731705][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   27.731824][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   27.731976][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   27.732096][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   27.732261][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   27.732383][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   27.732504][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   27.732629][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   27.732748][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   27.732874][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   27.732993][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   27.733111][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   27.733278][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   27.733399][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   27.733519][   T12]  process_one_work (kernel/workqueue.c:3314)
[   27.733641][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   27.733761][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   27.733884][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   27.734007][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   27.734129][   T12]  kthread (kernel/kthread.c:436)
[   27.734266][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.734418][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   27.734536][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   27.734655][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   27.734803][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   27.734923][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   27.735044][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   27.737741][   T12] ------------[ cut here ]------------
| [   27.737861][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   27.738093][   T12] Modules linked in:
| [   27.738785][   T12] Tainted: [W]=WARN
[   27.738873][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.739019][   T12] Workqueue: netns cleanup_net
[   27.739195][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   27.739403][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   27.739835][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   27.739983][   T12] RAX: 00000000ffffffa6 RBX: ff1100000d2678c0 RCX: 1ff4000000018ed5
[   27.740206][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d26797c
[   27.740386][   T12] RBP: ff11000010049000 R08: 1fe2200001a4cf31 R09: ff11000001aed1d0
[   27.740561][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   27.740735][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   27.740911][   T12] FS:  0000000000000000(0000) GS:ff110000b3c47000(0000) knlGS:0000000000000000
[   27.741117][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.741311][   T12] CR2: 000055cac4457d5c CR3: 000000003c54d004 CR4: 0000000000771ef0
[   27.741492][   T12] PKRU: 55555554
[   27.741580][   T12] Call Trace:
[   27.741670][   T12]  <TASK>
[   27.741731][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   27.741880][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   27.742032][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   27.742196][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   27.742318][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   27.742472][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   27.742591][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   27.742712][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   27.742834][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   27.742954][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   27.743074][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   27.743238][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   27.743363][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   27.743485][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   27.743602][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   27.743723][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   27.743839][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   27.743961][   T12]  process_one_work (kernel/workqueue.c:3314)
[   27.744084][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   27.744249][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   27.744377][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   27.744500][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   27.744618][   T12]  kthread (kernel/kthread.c:436)
[   27.744709][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.744861][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   27.744980][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   27.745100][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   27.745297][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   27.745421][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   27.745541][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   27.748365][   T12] ------------[ cut here ]------------
| [   27.748537][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   27.748834][   T12] Modules linked in:
| [   27.749303][   T12] Tainted: [W]=WARN
[   27.749447][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.749641][   T12] Workqueue: netns cleanup_net
[   27.749812][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   27.750012][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   27.750519][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   27.750715][   T12] RAX: 00000000ffffffa6 RBX: ff11000008d2b1c0 RCX: 1ff4000000018ed5
[   27.750939][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000008d2b27c
[   27.751174][   T12] RBP: ff1100000f2ec000 R08: 1fe22000011a5651 R09: ff11000001aed1d0
[   27.751433][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   27.751658][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   27.751886][   T12] FS:  0000000000000000(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   27.752157][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.752364][   T12] CR2: 00007fbbd0313574 CR3: 000000003c54d001 CR4: 0000000000771ef0
[   27.752600][   T12] PKRU: 55555554
[   27.752735][   T12] Call Trace:
[   27.752870][   T12]  <TASK>
[   27.752978][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   27.753190][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   27.753390][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   27.753559][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   27.753724][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   27.753923][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   27.754092][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   27.754273][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   27.754447][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   27.754616][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   27.754785][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   27.754952][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   27.755123][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   27.755304][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   27.755476][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   27.755647][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   27.755815][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   27.755985][   T12]  process_one_work (kernel/workqueue.c:3314)
[   27.756172][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   27.756341][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   27.756520][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   27.756691][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   27.756858][   T12]  kthread (kernel/kthread.c:436)
[   27.756996][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.757203][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   27.757380][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   27.757548][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   27.757745][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   27.757912][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   27.758079][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   27.792390][   T12] ------------[ cut here ]------------
| [   27.792595][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   27.792874][   T12] Modules linked in:
| [   27.793360][   T12] Tainted: [W]=WARN
[   27.793526][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.793733][   T12] Workqueue: netns cleanup_net
[   27.793903][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   27.794111][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   27.794804][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   27.795003][   T12] RAX: 00000000ffffffa6 RBX: ff1100000be56040 RCX: 1ff4000000018eed
[   27.795246][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000be560fc
[   27.795493][   T12] RBP: ff1100001008c000 R08: 1fe22000017cac21 R09: ff11000001aed1d0
[   27.795720][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   27.795951][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   27.796188][   T12] FS:  0000000000000000(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   27.796447][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.796646][   T12] CR2: 00007fbbd0313574 CR3: 000000003c54d001 CR4: 0000000000771ef0
[   27.796873][   T12] PKRU: 55555554
[   27.797007][   T12] Call Trace:
[   27.797157][   T12]  <TASK>
[   27.797268][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   27.797477][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   27.797676][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   27.797843][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   27.798010][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   27.798188][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   27.798365][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   27.798533][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   27.798702][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   27.798865][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   27.799034][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   27.799218][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   27.799392][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   27.799557][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   27.799724][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   27.799905][   T12]  process_one_work (kernel/workqueue.c:3314)
[   27.800080][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   27.800261][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   27.800444][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   27.800615][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   27.800783][   T12]  kthread (kernel/kthread.c:436)
[   27.800919][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.801116][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   27.801296][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   27.801479][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   27.801682][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   27.801853][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   27.802024][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   27.804630][   T12] ------------[ cut here ]------------
| [   27.804811][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   27.805112][   T12] Modules linked in:
| [   27.805886][   T12] Tainted: [W]=WARN
[   27.806019][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.806223][   T12] Workqueue: netns cleanup_net
[   27.806401][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   27.806602][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   27.807067][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   27.807276][   T12] RAX: 00000000ffffffa6 RBX: ff1100000be56ac0 RCX: 1ff4000000018eed
[   27.807506][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000be56b7c
[   27.807761][   T12] RBP: ff1100000f3d1000 R08: 1fe22000017cad71 R09: ff11000001aed1d0
[   27.807986][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   27.808220][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   27.808450][   T12] FS:  0000000000000000(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   27.808701][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.808895][   T12] CR2: 00007fbbd0313574 CR3: 000000003c54d001 CR4: 0000000000771ef0
[   27.809118][   T12] PKRU: 55555554
[   27.809266][   T12] Call Trace:
[   27.809409][   T12]  <TASK>
[   27.809517][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   27.809714][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   27.809906][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   27.810072][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   27.810251][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   27.810421][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   27.810586][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   27.810774][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   27.810948][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   27.811111][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   27.811288][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   27.811465][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   27.811675][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   27.811870][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   27.812037][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   27.812219][   T12]  process_one_work (kernel/workqueue.c:3314)
[   27.812396][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   27.812562][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   27.812732][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   27.812902][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   27.813095][   T12]  kthread (kernel/kthread.c:436)
[   27.813245][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.813445][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   27.813609][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   27.813775][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   27.813973][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   27.814154][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   27.814319][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   27.816986][   T12] ------------[ cut here ]------------
| [   27.817619][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   27.817937][   T12] Modules linked in:
| [   27.818547][   T12] Tainted: [W]=WARN
[   27.818728][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.818966][   T12] Workqueue: netns cleanup_net
[   27.819196][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   27.819453][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   27.819962][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   27.820216][   T12] RAX: 00000000ffffffa6 RBX: ff1100000d1a2740 RCX: 1ff4000000018eed
[   27.820488][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d1a27fc
[   27.820755][   T12] RBP: ff1100000fcac000 R08: 1fe2200001a34501 R09: ff11000001aed1d0
[   27.821024][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   27.821306][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   27.821614][   T12] FS:  0000000000000000(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   27.821923][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.822176][   T12] CR2: 00007fbbd0313574 CR3: 000000003c54d001 CR4: 0000000000771ef0
[   27.822466][   T12] PKRU: 55555554
[   27.822712][   T12] Call Trace:
[   27.822955][   T12]  <TASK>
[   27.823216][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   27.823534][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   27.823824][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   27.824081][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   27.824281][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   27.824452][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   27.824626][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   27.824803][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   27.824974][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   27.825156][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   27.825327][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   27.825504][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   27.825672][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   27.825842][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   27.826013][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   27.826197][   T12]  process_one_work (kernel/workqueue.c:3314)
[   27.826379][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   27.826547][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   27.826723][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   27.826897][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   27.827065][   T12]  kthread (kernel/kthread.c:436)
[   27.827224][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.827431][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   27.827599][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   27.827775][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   27.827977][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   27.828161][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   27.828332][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   27.830917][   T12] ------------[ cut here ]------------
| [   27.831088][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   27.831992][   T12] Modules linked in:
| [   27.832589][   T12] Tainted: [W]=WARN
[   27.832774][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.833020][   T12] Workqueue: netns cleanup_net
[   27.833256][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   27.833522][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   27.834047][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   27.834312][   T12] RAX: 00000000ffffffa6 RBX: ff1100000bc26040 RCX: 1ff4000000018eed
[   27.834593][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bc260fc
[   27.834867][   T12] RBP: ff110000078c1000 R08: 1fe2200001784c21 R09: ff11000001aed1d0
[   27.835200][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   27.835481][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   27.835759][   T12] FS:  0000000000000000(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   27.836062][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.836323][   T12] CR2: 00007fbbd0313574 CR3: 000000003c54d001 CR4: 0000000000771ef0
[   27.836605][   T12] PKRU: 55555554
[   27.836788][   T12] Call Trace:
[   27.836971][   T12]  <TASK>
[   27.837128][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   27.837400][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   27.837678][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   27.837903][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   27.838073][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   27.838250][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   27.838442][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   27.838614][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   27.838792][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   27.838959][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   27.839132][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   27.839320][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   27.839501][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   27.839670][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   27.839838][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   27.840012][   T12]  process_one_work (kernel/workqueue.c:3314)
[   27.840209][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   27.840390][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   27.840564][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   27.840745][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   27.840914][   T12]  kthread (kernel/kthread.c:436)
[   27.841053][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.841268][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   27.841445][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   27.841615][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   27.841815][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   27.841987][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   27.842172][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   27.844672][   T12] ------------[ cut here ]------------
| [   27.844839][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   27.845129][   T12] Modules linked in:
| [   27.846435][   T12] Tainted: [W]=WARN
[   27.846619][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.846869][   T12] Workqueue: netns cleanup_net
[   27.847093][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   27.847371][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   27.847900][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   27.848174][   T12] RAX: 00000000ffffffa6 RBX: ff1100000e54bc40 RCX: 1ff4000000018eed
[   27.848458][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e54bcfc
[   27.848738][   T12] RBP: ff110000094e1000 R08: 1fe2200001ca97a1 R09: ff11000001aed1d0
[   27.849010][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   27.849297][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   27.849586][   T12] FS:  0000000000000000(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   27.849893][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.850196][   T12] CR2: 00007fbbd0313574 CR3: 000000003c54d001 CR4: 0000000000771ef0
[   27.850480][   T12] PKRU: 55555554
[   27.850664][   T12] Call Trace:
[   27.850847][   T12]  <TASK>
[   27.851003][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   27.851266][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   27.851518][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   27.851739][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   27.851955][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   27.852184][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   27.852409][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   27.852628][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   27.852846][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   27.853059][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   27.853297][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   27.853528][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   27.853746][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   27.853965][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   27.854194][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   27.854418][   T12]  process_one_work (kernel/workqueue.c:3314)
[   27.854649][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   27.854818][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   27.854995][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   27.855185][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   27.855362][   T12]  kthread (kernel/kthread.c:436)
[   27.855503][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.855702][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   27.855872][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   27.856046][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   27.856265][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   27.856443][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   27.856616][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   27.866312][  T396] ------------[ cut here ]------------
| [   27.866479][  T396] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/396
| [   27.866717][  T396] Modules linked in:
| [   27.867097][  T396] Tainted: [W]=WARN
[   27.867210][  T396] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.867386][  T396] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   27.867563][  T396] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   27.868038][  T396] RSP: 0018:ffa0000001147a80 EFLAGS: 00010286
[   27.868217][  T396] RAX: 00000000ffffffa6 RBX: ff1100000a2e0e40 RCX: 1ff4000000228f16
[   27.868423][  T396] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a2e0efc
[   27.868623][  T396] RBP: ff1100000e329000 R08: 1fe220000145c1e1 R09: ff110000051c5180
[   27.868825][  T396] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   27.869028][  T396] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e329000
[   27.869235][  T396] FS:  00007f178bad7840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   27.869480][  T396] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.869651][  T396] CR2: 000055caeb7a2708 CR3: 000000000c778002 CR4: 0000000000771ef0
[   27.869855][  T396] PKRU: 55555554
[   27.869958][  T396] Call Trace:
[   27.870059][  T396]  <TASK>
[   27.870129][  T396]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   27.870271][  T396]  ? notifier_call_chain (kernel/notifier.c:85)
[   27.870413][  T396]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   27.870516][  T396]  register_netdevice (net/core/dev.c:11488)
[   27.870654][  T396]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   27.870824][  T396]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   27.870963][  T396]  register_netdev (net/core/dev.c:11552)
[   27.871097][  T396]  loopback_net_init (drivers/net/loopback.c:218)
[   27.871242][  T396]  ops_init (net/core/net_namespace.c:137)
[   27.871348][  T396]  setup_net (net/core/net_namespace.c:446)
[   27.871452][  T396]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   27.871588][  T396]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   27.871726][  T396]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   27.871866][  T396]  copy_net_ns (net/core/net_namespace.c:579)
[   27.872006][  T396]  create_new_namespaces (kernel/nsproxy.c:132)
[   27.872150][  T396]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   27.872287][  T396]  ksys_unshare (kernel/fork.c:3243)
[   27.872428][  T396]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   27.872565][  T396]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   27.872699][  T396]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   27.872840][  T396]  ? __ia32_sys_open (fs/open.c:1374)
[   27.872978][  T396]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   27.873111][  T396]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   27.873267][  T396]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   27.873405][  T396]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   27.873540][  T396]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   27.873674][  T396]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   27.873843][  T396] RIP: 0033:0x7f178bd99bcb
[   27.873988][  T396] 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
[   27.874486][  T396] RSP: 002b:00007ffcf5ecd898 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   27.874691][  T396] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f178bd99bcb
[   27.874897][  T396] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   27.875100][  T396] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   27.875309][  T396] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffcf5ecfac0
[   27.875513][  T396] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffcf5ed1867
| [   27.879804][  T396] ------------[ cut here ]------------
| [   27.879951][  T396] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/396
| [   27.880191][  T396] Modules linked in:
| [   27.880572][  T396] Tainted: [W]=WARN
[   27.880674][  T396] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.880850][  T396] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   27.881026][  T396] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   27.881516][  T396] RSP: 0018:ffa0000001147918 EFLAGS: 00010286
[   27.881686][  T396] RAX: 00000000ffffffa6 RBX: ff110000062418c0 RCX: 1ff4000000228ee9
[   27.881889][  T396] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000624197c
[   27.882092][  T396] RBP: ff11000008b69000 R08: 1fe2200000c48331 R09: ff110000051c5180
[   27.882299][  T396] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   27.882504][  T396] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008b69000
[   27.882709][  T396] FS:  00007f178bad7840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   27.882948][  T396] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.883114][  T396] CR2: 000055caeb7a2708 CR3: 000000000c778002 CR4: 0000000000771ef0
[   27.883322][  T396] PKRU: 55555554
[   27.883429][  T396] Call Trace:
[   27.883529][  T396]  <TASK>
[   27.883600][  T396]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   27.883734][  T396]  ? notifier_call_chain (kernel/notifier.c:85)
[   27.883869][  T396]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   27.883972][  T396]  register_netdevice (net/core/dev.c:11488)
[   27.884109][  T396]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   27.884285][  T396]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   27.884425][  T396]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   27.884560][  T396]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   27.884694][  T396]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   27.884832][  T396]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   27.884968][  T396]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   27.885106][  T396]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   27.885250][  T396]  ops_init (net/core/net_namespace.c:137)
[   27.885357][  T396]  setup_net (net/core/net_namespace.c:446)
[   27.885461][  T396]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   27.885596][  T396]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   27.885733][  T396]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   27.885870][  T396]  copy_net_ns (net/core/net_namespace.c:579)
[   27.886007][  T396]  create_new_namespaces (kernel/nsproxy.c:132)
[   27.886150][  T396]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   27.886286][  T396]  ksys_unshare (kernel/fork.c:3243)
[   27.886423][  T396]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   27.886558][  T396]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   27.886694][  T396]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   27.886831][  T396]  ? __ia32_sys_open (fs/open.c:1374)
[   27.886967][  T396]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   27.887103][  T396]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   27.887242][  T396]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   27.887381][  T396]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   27.887515][  T396]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   27.887649][  T396]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   27.887818][  T396] RIP: 0033:0x7f178bd99bcb
[   27.887959][  T396] 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
[   27.888449][  T396] RSP: 002b:00007ffcf5ecd898 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   27.888655][  T396] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f178bd99bcb
[   27.888858][  T396] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   27.889058][  T396] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   27.889264][  T396] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffcf5ecfac0
[   27.889471][  T396] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffcf5ed1867
| [   27.893369][  T396] ------------[ cut here ]------------
| [   27.893515][  T396] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/396
| [   27.893751][  T396] Modules linked in:
| [   27.894135][  T396] Tainted: [W]=WARN
[   27.894245][  T396] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.894421][  T396] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   27.894599][  T396] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   27.895085][  T396] RSP: 0018:ffa00000011478f8 EFLAGS: 00010286
[   27.895265][  T396] RAX: 00000000ffffffa6 RBX: ff11000006240900 RCX: 1ff4000000228ee5
[   27.895473][  T396] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000062409bc
[   27.895677][  T396] RBP: ff11000009591000 R08: 1fe2200000c48139 R09: ff110000051c5180
[   27.895882][  T396] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   27.896086][  T396] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009591000
[   27.896294][  T396] FS:  00007f178bad7840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   27.896534][  T396] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.896706][  T396] CR2: 000055caeb7a2708 CR3: 000000000c778002 CR4: 0000000000771ef0
[   27.896914][  T396] PKRU: 55555554
[   27.897019][  T396] Call Trace:
[   27.897121][  T396]  <TASK>
[   27.897196][  T396]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   27.897333][  T396]  ? notifier_call_chain (kernel/notifier.c:85)
[   27.897474][  T396]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   27.897579][  T396]  register_netdevice (net/core/dev.c:11488)
[   27.897718][  T396]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   27.897888][  T396]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   27.898030][  T396]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   27.898175][  T396]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   27.898313][  T396]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   27.898454][  T396]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   27.898592][  T396]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   27.898728][  T396]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   27.898867][  T396]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   27.899009][  T396]  vti_init_net (net/ipv4/ip_vti.c:517)
[   27.899152][  T396]  ops_init (net/core/net_namespace.c:137)
[   27.899257][  T396]  setup_net (net/core/net_namespace.c:446)
[   27.899365][  T396]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   27.899505][  T396]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   27.899641][  T396]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   27.899780][  T396]  copy_net_ns (net/core/net_namespace.c:579)
[   27.899919][  T396]  create_new_namespaces (kernel/nsproxy.c:132)
[   27.900063][  T396]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   27.900207][  T396]  ksys_unshare (kernel/fork.c:3243)
[   27.900349][  T396]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   27.900487][  T396]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   27.900625][  T396]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   27.900765][  T396]  ? __ia32_sys_open (fs/open.c:1374)
[   27.900903][  T396]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   27.901042][  T396]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   27.901184][  T396]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   27.901321][  T396]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   27.901461][  T396]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   27.901599][  T396]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   27.901768][  T396] RIP: 0033:0x7f178bd99bcb
[   27.901910][  T396] 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
[   27.902405][  T396] RSP: 002b:00007ffcf5ecd898 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   27.902610][  T396] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f178bd99bcb
[   27.902812][  T396] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   27.903018][  T396] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   27.903224][  T396] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffcf5ecfac0
[   27.903430][  T396] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffcf5ed1867
| [   27.905036][   T12] ------------[ cut here ]------------
| [   27.905185][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   27.905442][   T12] Modules linked in:
| [   27.905835][   T12] Tainted: [W]=WARN
[   27.905932][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.906092][   T12] Workqueue: netns cleanup_net
[   27.906231][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   27.906408][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   27.906861][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   27.907022][   T12] RAX: 00000000ffffffa6 RBX: ff11000009936900 RCX: 1ff4000000018eaf
[   27.907217][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000099369bc
[   27.907413][   T12] RBP: ff110000090e9000 R08: 1fe2200001326d39 R09: ff11000001aed1d0
[   27.907603][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   27.907792][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000000c77e0
[   27.907984][   T12] FS:  0000000000000000(0000) GS:ff110000b3c47000(0000) knlGS:0000000000000000
[   27.908213][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.908380][   T12] CR2: 00007f178bce17d0 CR3: 000000000c778005 CR4: 0000000000771ef0
[   27.908573][   T12] PKRU: 55555554
[   27.908673][   T12] Call Trace:
[   27.908769][   T12]  <TASK>
[   27.908835][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   27.908964][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   27.909062][   T12]  netif_close_many (net/core/dev.c:1804)
[   27.909197][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   27.909327][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   27.909461][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   27.909623][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   27.909784][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   27.909913][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   27.910040][   T12]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   27.910174][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   27.910338][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   27.910473][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   27.910603][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   27.910732][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   27.910860][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   27.910990][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   27.911120][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   27.911251][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   27.911385][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   27.911513][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   27.911641][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   27.911770][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   27.911899][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   27.912028][   T12]  process_one_work (kernel/workqueue.c:3314)
[   27.912167][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   27.912295][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   27.912434][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   27.912567][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   27.912695][   T12]  kthread (kernel/kthread.c:436)
[   27.912792][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.912951][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   27.913081][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   27.913216][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   27.913379][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   27.913506][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   27.913635][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   27.915871][   T12] ------------[ cut here ]------------
| [   27.915998][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   27.916283][   T12] Modules linked in:
| [   27.916665][   T12] Tainted: [W]=WARN
[   27.916759][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.916913][   T12] Workqueue: netns cleanup_net
[   27.917041][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   27.917205][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   27.917646][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   27.917801][   T12] RAX: 00000000ffffffa6 RBX: ff11000009937a80 RCX: 1ff4000000018ed5
[   27.917984][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009937b3c
[   27.918173][   T12] RBP: ff110000090e9000 R08: 1fe2200001326f69 R09: ff11000001aed1d0
[   27.918361][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   27.918543][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   27.918726][   T12] FS:  0000000000000000(0000) GS:ff110000b3c47000(0000) knlGS:0000000000000000
[   27.918942][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.919099][   T12] CR2: 00007f178bce17d0 CR3: 000000000c778005 CR4: 0000000000771ef0
[   27.919291][   T12] PKRU: 55555554
[   27.919387][   T12] Call Trace:
[   27.919479][   T12]  <TASK>
[   27.919544][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   27.919702][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   27.919858][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   27.919987][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   27.920112][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   27.920244][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   27.920372][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   27.920497][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   27.920622][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   27.920744][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   27.920871][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   27.920995][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   27.921118][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   27.921247][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   27.921374][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   27.921505][   T12]  process_one_work (kernel/workqueue.c:3314)
[   27.921632][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   27.921755][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   27.921885][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   27.922015][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   27.922140][   T12]  kthread (kernel/kthread.c:436)
[   27.922237][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.922396][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   27.922520][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   27.922644][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   27.922800][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   27.922924][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   27.923047][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   27.928179][  T396] ------------[ cut here ]------------
| [   27.928328][  T396] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/396
| [   27.928569][  T396] Modules linked in:
| [   27.928949][  T396] Tainted: [W]=WARN
[   27.929053][  T396] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.929224][  T396] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   27.929402][  T396] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   27.929883][  T396] RSP: 0018:ffa0000001147a78 EFLAGS: 00010286
[   27.930052][  T396] RAX: 00000000ffffffa6 RBX: ff1100000a2e1a80 RCX: 1ff4000000228f15
[   27.930257][  T396] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a2e1b3c
[   27.930462][  T396] RBP: ff1100000e479000 R08: 1fe220000145c369 R09: ff110000051c5180
[   27.930662][  T396] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   27.930865][  T396] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e479000
[   27.931067][  T396] FS:  00007f178bad7840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   27.931309][  T396] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.931482][  T396] CR2: 000055caeb7a2708 CR3: 000000000c778002 CR4: 0000000000771ef0
[   27.931690][  T396] PKRU: 55555554
[   27.931790][  T396] Call Trace:
[   27.931889][  T396]  <TASK>
[   27.931959][  T396]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   27.932094][  T396]  ? notifier_call_chain (kernel/notifier.c:85)
[   27.932238][  T396]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   27.932341][  T396]  register_netdevice (net/core/dev.c:11488)
[   27.932480][  T396]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   27.932648][  T396]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   27.932786][  T396]  register_netdev (net/core/dev.c:11552)
[   27.932921][  T396]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   27.933056][  T396]  ops_init (net/core/net_namespace.c:137)
[   27.933165][  T396]  setup_net (net/core/net_namespace.c:446)
[   27.933268][  T396]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   27.933407][  T396]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   27.933547][  T396]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   27.933684][  T396]  copy_net_ns (net/core/net_namespace.c:579)
[   27.933821][  T396]  create_new_namespaces (kernel/nsproxy.c:132)
[   27.933958][  T396]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   27.934093][  T396]  ksys_unshare (kernel/fork.c:3243)
[   27.934294][  T396]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   27.934438][  T396]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   27.934576][  T396]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   27.934713][  T396]  ? __ia32_sys_open (fs/open.c:1374)
[   27.934850][  T396]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   27.934987][  T396]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   27.935123][  T396]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   27.935316][  T396]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   27.935457][  T396]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   27.935591][  T396]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   27.935763][  T396] RIP: 0033:0x7f178bd99bcb
[   27.935904][  T396] 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
[   27.936448][  T396] RSP: 002b:00007ffcf5ecd898 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   27.936652][  T396] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f178bd99bcb
[   27.936855][  T396] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   27.937056][  T396] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   27.937311][  T396] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffcf5ecfac0
[   27.937516][  T396] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffcf5ed1867
| [   27.941929][  T396] ------------[ cut here ]------------
| [   27.942085][  T396] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/396
| [   27.942332][  T396] Modules linked in:
| [   27.942712][  T396] Tainted: [W]=WARN
[   27.942815][  T396] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.942983][  T396] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   27.943174][  T396] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   27.943661][  T396] RSP: 0018:ffa0000001147a68 EFLAGS: 00010286
[   27.943830][  T396] RAX: 00000000ffffffa6 RBX: ff1100000b1b4900 RCX: 1ff4000000228f13
[   27.944032][  T396] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b1b49bc
[   27.944242][  T396] RBP: ff1100000f379000 R08: 1fe2200001636939 R09: ff110000051c5180
[   27.944453][  T396] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   27.944654][  T396] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f379000
[   27.944856][  T396] FS:  00007f178bad7840(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   27.945094][  T396] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.945271][  T396] CR2: 000055cac4457d5c CR3: 000000000c778005 CR4: 0000000000771ef0
[   27.945481][  T396] PKRU: 55555554
[   27.945582][  T396] Call Trace:
[   27.945682][  T396]  <TASK>
[   27.945751][  T396]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   27.945888][  T396]  ? notifier_call_chain (kernel/notifier.c:85)
[   27.946024][  T396]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   27.946127][  T396]  register_netdevice (net/core/dev.c:11488)
[   27.946270][  T396]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   27.946445][  T396]  register_netdev (net/core/dev.c:11552)
[   27.946580][  T396]  sit_init_net (net/ipv6/sit.c:1860)
[   27.946717][  T396]  ops_init (net/core/net_namespace.c:137)
[   27.946820][  T396]  setup_net (net/core/net_namespace.c:446)
[   27.946924][  T396]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   27.947059][  T396]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   27.947201][  T396]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   27.947337][  T396]  copy_net_ns (net/core/net_namespace.c:579)
[   27.947479][  T396]  create_new_namespaces (kernel/nsproxy.c:132)
[   27.947616][  T396]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   27.947754][  T396]  ksys_unshare (kernel/fork.c:3243)
[   27.947890][  T396]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   27.948025][  T396]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   27.948165][  T396]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   27.948301][  T396]  ? __ia32_sys_open (fs/open.c:1374)
[   27.948441][  T396]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   27.948575][  T396]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   27.948709][  T396]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   27.948846][  T396]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   27.948980][  T396]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   27.949115][  T396]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   27.949288][  T396] RIP: 0033:0x7f178bd99bcb
[   27.949431][  T396] 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
[   27.949911][  T396] RSP: 002b:00007ffcf5ecd898 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   27.950116][  T396] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f178bd99bcb
[   27.950320][  T396] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   27.950523][  T396] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   27.950726][  T396] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffcf5ecfac0
[   27.950928][  T396] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffcf5ed1867
| [   27.955708][  T396] ------------[ cut here ]------------
| [   27.955854][  T396] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/396
| [   27.956088][  T396] Modules linked in:
| [   27.956475][  T396] Tainted: [W]=WARN
[   27.956578][  T396] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.956746][  T396] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   27.956918][  T396] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   27.957399][  T396] RSP: 0018:ffa0000001147a78 EFLAGS: 00010286
[   27.957572][  T396] RAX: 00000000ffffffa6 RBX: ff11000009b158c0 RCX: 1ff4000000228f15
[   27.957771][  T396] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009b1597c
[   27.957974][  T396] RBP: ff1100000f0e4000 R08: 1fe2200001362b31 R09: ff110000051c5180
[   27.958180][  T396] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   27.958386][  T396] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f0e4000
[   27.958590][  T396] FS:  00007f178bad7840(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   27.958826][  T396] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.958993][  T396] CR2: 000055cac4457d5c CR3: 000000000c778005 CR4: 0000000000771ef0
[   27.959203][  T396] PKRU: 55555554
[   27.959305][  T396] Call Trace:
[   27.959408][  T396]  <TASK>
[   27.959477][  T396]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   27.959612][  T396]  ? notifier_call_chain (kernel/notifier.c:85)
[   27.959749][  T396]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   27.959852][  T396]  register_netdevice (net/core/dev.c:11488)
[   27.959990][  T396]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   27.960162][  T396]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   27.960299][  T396]  register_netdev (net/core/dev.c:11552)
[   27.960441][  T396]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   27.960576][  T396]  ops_init (net/core/net_namespace.c:137)
[   27.960680][  T396]  setup_net (net/core/net_namespace.c:446)
[   27.960784][  T396]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   27.960917][  T396]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   27.961053][  T396]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   27.961195][  T396]  copy_net_ns (net/core/net_namespace.c:579)
[   27.961332][  T396]  create_new_namespaces (kernel/nsproxy.c:132)
[   27.961475][  T396]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   27.961611][  T396]  ksys_unshare (kernel/fork.c:3243)
[   27.961747][  T396]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   27.961883][  T396]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   27.962020][  T396]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   27.962162][  T396]  ? __ia32_sys_open (fs/open.c:1374)
[   27.962298][  T396]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   27.962439][  T396]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   27.962574][  T396]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   27.962709][  T396]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   27.962845][  T396]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   27.962980][  T396]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   27.963156][  T396] RIP: 0033:0x7f178bd99bcb
[   27.963297][  T396] 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
[   27.963784][  T396] RSP: 002b:00007ffcf5ecd898 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   27.963988][  T396] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f178bd99bcb
[   27.964192][  T396] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   27.964397][  T396] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   27.964598][  T396] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffcf5ecfac0
[   27.964798][  T396] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffcf5ed1867
| [   28.009914][  T397] ------------[ cut here ]------------
| [   28.010121][  T397] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/397
| [   28.010422][  T397] Modules linked in:
| [   28.010893][  T397] Tainted: [W]=WARN
[   28.011044][  T397] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.011377][  T397] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.011598][  T397] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.012113][  T397] RSP: 0018:ffa0000001147020 EFLAGS: 00010286
[   28.012340][  T397] RAX: 00000000ffffffa6 RBX: ff1100000ff798c0 RCX: 1ff4000000228dca
[   28.012592][  T397] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ff7997c
[   28.012843][  T397] RBP: ff1100000e329000 R08: 1fe2200001fef331 R09: ff110000101cd158
[   28.013090][  T397] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[   28.013355][  T397] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   28.013608][  T397] FS:  00007f1a6d576840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   28.013886][  T397] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.014099][  T397] CR2: 000000003c0cf988 CR3: 000000000bd18006 CR4: 0000000000771ef0
[   28.014368][  T397] PKRU: 55555554
[   28.014517][  T397] Call Trace:
[   28.014665][  T397]  <TASK>
[   28.014785][  T397]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   28.014970][  T397]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   28.015123][  T397]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   28.015317][  T397]  __dev_notify_flags (net/core/dev.c:9787)
[   28.015512][  T397]  ? netif_change_name (net/core/dev.c:1495)
[   28.015693][  T397]  ? __dev_change_flags (net/core/dev.c:9752)
[   28.015876][  T397]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   28.016059][  T397]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.016259][  T397]  ? 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))
[   28.016454][  T397]  netif_change_flags (net/core/dev.c:9820)
[   28.016639][  T397]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   28.016821][  T397]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   28.017006][  T397]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   28.017198][  T397]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   28.017423][  T397]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   28.017607][  T397]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   28.017791][  T397]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   28.017973][  T397]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   28.018168][  T397]  ? __kernel_text_address (kernel/extable.c:79)
[   28.018358][  T397]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   28.018543][  T397]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.018724][  T397]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   28.018908][  T397]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.019088][  T397]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   28.019282][  T397]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.019474][  T397]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.019662][  T397]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   28.019847][  T397]  ? __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)
[   28.020029][  T397]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   28.020226][  T397]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   28.020418][  T397]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   28.020605][  T397]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   28.020794][  T397]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   28.020980][  T397]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.021173][  T397]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   28.021366][  T397]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   28.021546][  T397]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   28.021727][  T397]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.021912][  T397]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.022091][  T397]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   28.022286][  T397]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   28.022483][  T397]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.022674][  T397]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   28.022859][  T397]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   28.023043][  T397]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   28.023236][  T397]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   28.023424][  T397]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   28.023609][  T397]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.023791][  T397]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   28.023976][  T397]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   28.024175][  T397]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   28.024367][  T397]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   28.024553][  T397]  ? 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))
[   28.024733][  T397]  ? 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))
[   28.024918][  T397]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   28.025102][  T397]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   28.025295][  T397]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   28.025485][  T397]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   28.025676][  T397]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   28.025860][  T397]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   28.026045][  T397]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   28.026243][  T397]  ? copy_msghdr_from_user (net/socket.c:2635)
[   28.026427][  T397]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   28.026639][  T397]  ? move_addr_to_kernel (net/socket.c:258)
[   28.026823][  T397]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   28.027009][  T397]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   28.027207][  T397]  ___sys_sendmsg (net/socket.c:2752)
[   28.027393][  T397]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   28.027609][  T397]  ? copy_msghdr_from_user (net/socket.c:2603)
[   28.027805][  T397]  __sys_sendmsg (net/socket.c:2784)
[   28.027988][  T397]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   28.028181][  T397]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   28.028410][  T397]  ? 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)
[   28.028596][  T397]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.028783][  T397]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   28.028965][  T397]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   28.029159][  T397]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   28.029342][  T397]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   28.029563][  T397] RIP: 0033:0x7f1a6d7b008e
[   28.029750][  T397] 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
[   28.030293][  T397] RSP: 002b:00007fff7f2e93e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   28.030554][  T397] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f1a6d7b008e
[   28.030807][  T397] RDX: 0000000000000000 RSI: 00007fff7f2e9490 RDI: 0000000000000005
[   28.031055][  T397] RBP: 00007fff7f2e93f0 R08: 0000000000000000 R09: 0000000000000000
[   28.031322][  T397] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ea26
[   28.031579][  T397] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff7f2e9b60
| [   28.214853][  T405] ------------[ cut here ]------------
| [   28.215039][  T405] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/405
| [   28.215290][  T405] Modules linked in:
| [   28.215676][  T405] Tainted: [W]=WARN
[   28.215778][  T405] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.215950][  T405] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.216130][  T405] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.216608][  T405] RSP: 0018:ffa0000000f47a80 EFLAGS: 00010286
[   28.216775][  T405] RAX: 00000000ffffffa6 RBX: ff1100000e54aac0 RCX: 1ff40000001e8f16
[   28.216972][  T405] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e54ab7c
[   28.217174][  T405] RBP: ff1100000a4f9000 R08: 1fe2200001ca9571 R09: ff1100000f295180
[   28.217377][  T405] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   28.217573][  T405] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a4f9000
[   28.217771][  T405] FS:  00007fbd4a91c840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   28.218004][  T405] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.218177][  T405] CR2: 00007fbd4ab1dc20 CR3: 000000000fc37006 CR4: 0000000000771ef0
[   28.218380][  T405] PKRU: 55555554
[   28.218481][  T405] Call Trace:
[   28.218581][  T405]  <TASK>
[   28.218651][  T405]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   28.218818][  T405]  ? notifier_call_chain (kernel/notifier.c:85)
[   28.218952][  T405]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   28.219054][  T405]  register_netdevice (net/core/dev.c:11488)
[   28.219193][  T405]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   28.219364][  T405]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   28.219498][  T405]  register_netdev (net/core/dev.c:11552)
[   28.219629][  T405]  loopback_net_init (drivers/net/loopback.c:218)
[   28.219762][  T405]  ops_init (net/core/net_namespace.c:137)
[   28.219866][  T405]  setup_net (net/core/net_namespace.c:446)
[   28.219967][  T405]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   28.220099][  T405]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   28.220236][  T405]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   28.220377][  T405]  copy_net_ns (net/core/net_namespace.c:579)
[   28.220510][  T405]  create_new_namespaces (kernel/nsproxy.c:132)
[   28.220645][  T405]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   28.220778][  T405]  ksys_unshare (kernel/fork.c:3243)
[   28.220910][  T405]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   28.221043][  T405]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   28.221246][  T405]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   28.221387][  T405]  ? __ia32_sys_open (fs/open.c:1374)
[   28.221521][  T405]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   28.221652][  T405]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   28.221783][  T405]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   28.221916][  T405]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   28.222050][  T405]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   28.222245][  T405]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   28.222414][  T405] RIP: 0033:0x7fbd4abdebcb
[   28.222554][  T405] 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
[   28.223027][  T405] RSP: 002b:00007ffda8e17198 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   28.223299][  T405] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fbd4abdebcb
[   28.223499][  T405] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   28.223694][  T405] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   28.223893][  T405] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffda8e193c0
[   28.224091][  T405] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffda8e1a865
| [   28.228570][  T405] ------------[ cut here ]------------
| [   28.228710][  T405] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/405
| [   28.228942][  T405] Modules linked in:
| [   28.229331][  T405] Tainted: [W]=WARN
[   28.229440][  T405] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.229604][  T405] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.229776][  T405] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.230251][  T405] RSP: 0018:ffa0000000f47918 EFLAGS: 00010286
[   28.230422][  T405] RAX: 00000000ffffffa6 RBX: ff1100000c3bf380 RCX: 1ff40000001e8ee9
[   28.230618][  T405] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c3bf43c
[   28.230814][  T405] RBP: ff11000005149000 R08: 1fe2200001877e89 R09: ff1100000f295180
[   28.231010][  T405] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   28.231214][  T405] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000005149000
[   28.231416][  T405] FS:  00007fbd4a91c840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   28.231645][  T405] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.231808][  T405] CR2: 00007fbd4ab1dc20 CR3: 000000000fc37006 CR4: 0000000000771ef0
[   28.232009][  T405] PKRU: 55555554
[   28.232109][  T405] Call Trace:
[   28.232213][  T405]  <TASK>
[   28.232283][  T405]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   28.232423][  T405]  ? notifier_call_chain (kernel/notifier.c:85)
[   28.232558][  T405]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   28.232660][  T405]  register_netdevice (net/core/dev.c:11488)
[   28.232795][  T405]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   28.232960][  T405]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   28.233095][  T405]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   28.233234][  T405]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   28.233371][  T405]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   28.233506][  T405]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   28.233641][  T405]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   28.233773][  T405]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   28.233907][  T405]  ops_init (net/core/net_namespace.c:137)
[   28.234007][  T405]  setup_net (net/core/net_namespace.c:446)
[   28.234107][  T405]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   28.234462][  T405]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   28.234597][  T405]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   28.234733][  T405]  copy_net_ns (net/core/net_namespace.c:579)
[   28.234869][  T405]  create_new_namespaces (kernel/nsproxy.c:132)
[   28.235006][  T405]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   28.235139][  T405]  ksys_unshare (kernel/fork.c:3243)
[   28.235278][  T405]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   28.235412][  T405]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   28.235545][  T405]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   28.235678][  T405]  ? __ia32_sys_open (fs/open.c:1374)
[   28.235814][  T405]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   28.235945][  T405]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   28.236077][  T405]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   28.236215][  T405]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   28.236350][  T405]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   28.236482][  T405]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   28.236648][  T405] RIP: 0033:0x7fbd4abdebcb
[   28.236786][  T405] 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
[   28.237256][  T405] RSP: 002b:00007ffda8e17198 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   28.237461][  T405] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fbd4abdebcb
[   28.237661][  T405] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   28.237856][  T405] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   28.238054][  T405] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffda8e193c0
[   28.238255][  T405] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffda8e1a865
| [   28.243255][  T405] ------------[ cut here ]------------
| [   28.243411][  T405] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/405
| [   28.243641][  T405] Modules linked in:
| [   28.244016][  T405] Tainted: [W]=WARN
[   28.244119][  T405] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.244288][  T405] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.244465][  T405] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.244936][  T405] RSP: 0018:ffa0000000f478f8 EFLAGS: 00010286
[   28.245102][  T405] RAX: 00000000ffffffa6 RBX: ff110000060be3c0 RCX: 1ff40000001e8ee5
[   28.245303][  T405] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000060be47c
[   28.245504][  T405] RBP: ff1100000f37c000 R08: 1fe2200000c17c91 R09: ff1100000f295180
[   28.245699][  T405] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   28.245897][  T405] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f37c000
[   28.246095][  T405] FS:  00007fbd4a91c840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   28.246333][  T405] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.246505][  T405] CR2: 00007fbd4ab1dc20 CR3: 000000000fc37006 CR4: 0000000000771ef0
[   28.246705][  T405] PKRU: 55555554
[   28.246805][  T405] Call Trace:
[   28.246904][  T405]  <TASK>
[   28.246973][  T405]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   28.247108][  T405]  ? notifier_call_chain (kernel/notifier.c:85)
[   28.247246][  T405]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   28.247351][  T405]  register_netdevice (net/core/dev.c:11488)
[   28.247485][  T405]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   28.247654][  T405]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   28.247790][  T405]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   28.247926][  T405]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   28.248059][  T405]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   28.248198][  T405]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   28.248332][  T405]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   28.248470][  T405]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   28.248604][  T405]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   28.248740][  T405]  vti_init_net (net/ipv4/ip_vti.c:517)
[   28.248872][  T405]  ops_init (net/core/net_namespace.c:137)
[   28.248974][  T405]  setup_net (net/core/net_namespace.c:446)
[   28.249074][  T405]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   28.249266][  T405]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   28.249403][  T405]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   28.249538][  T405]  copy_net_ns (net/core/net_namespace.c:579)
[   28.249674][  T405]  create_new_namespaces (kernel/nsproxy.c:132)
[   28.249810][  T405]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   28.249943][  T405]  ksys_unshare (kernel/fork.c:3243)
[   28.250075][  T405]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   28.250266][  T405]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   28.250459][  T405]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   28.250596][  T405]  ? __ia32_sys_open (fs/open.c:1374)
[   28.250731][  T405]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   28.250864][  T405]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   28.250996][  T405]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   28.251129][  T405]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   28.251318][  T405]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   28.251457][  T405]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   28.251620][  T405] RIP: 0033:0x7fbd4abdebcb
[   28.251758][  T405] 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
[   28.252290][  T405] RSP: 002b:00007ffda8e17198 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   28.252495][  T405] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fbd4abdebcb
[   28.252692][  T405] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   28.252891][  T405] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   28.253089][  T405] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffda8e193c0
[   28.253352][  T405] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffda8e1a865
| [   28.258018][  T405] ------------[ cut here ]------------
| [   28.258209][  T405] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/405
| [   28.258493][  T405] Modules linked in:
| [   28.258959][  T405] Tainted: [W]=WARN
[   28.259105][  T405] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.259329][  T405] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.259558][  T405] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.260072][  T405] RSP: 0018:ffa0000000f47a78 EFLAGS: 00010286
[   28.260298][  T405] RAX: 00000000ffffffa6 RBX: ff1100000cddc580 RCX: 1ff40000001e8f15
[   28.260549][  T405] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cddc63c
[   28.260795][  T405] RBP: ff1100000a7c9000 R08: 1fe22000019bb8c9 R09: ff1100000f295180
[   28.261040][  T405] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   28.261294][  T405] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a7c9000
[   28.261547][  T405] FS:  00007fbd4a91c840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   28.261827][  T405] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.262038][  T405] CR2: 00007f11c6aa1574 CR3: 000000000fc37002 CR4: 0000000000771ef0
[   28.262293][  T405] PKRU: 55555554
[   28.262449][  T405] Call Trace:
[   28.262594][  T405]  <TASK>
[   28.262710][  T405]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   28.262891][  T405]  ? notifier_call_chain (kernel/notifier.c:85)
[   28.263074][  T405]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   28.263234][  T405]  register_netdevice (net/core/dev.c:11488)
[   28.263427][  T405]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   28.263636][  T405]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.263819][  T405]  register_netdev (net/core/dev.c:11552)
[   28.263998][  T405]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   28.264192][  T405]  ops_init (net/core/net_namespace.c:137)
[   28.264341][  T405]  setup_net (net/core/net_namespace.c:446)
[   28.264500][  T405]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   28.264677][  T405]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   28.264858][  T405]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   28.265040][  T405]  copy_net_ns (net/core/net_namespace.c:579)
[   28.265234][  T405]  create_new_namespaces (kernel/nsproxy.c:132)
[   28.265427][  T405]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   28.265611][  T405]  ksys_unshare (kernel/fork.c:3243)
[   28.265790][  T405]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   28.265969][  T405]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   28.266164][  T405]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   28.266353][  T405]  ? __ia32_sys_open (fs/open.c:1374)
[   28.266536][  T405]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   28.266715][  T405]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   28.266895][  T405]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   28.267077][  T405]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   28.267268][  T405]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   28.267457][  T405]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   28.267669][  T405] RIP: 0033:0x7fbd4abdebcb
[   28.267855][  T405] 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
[   28.268394][  T405] RSP: 002b:00007ffda8e17198 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   28.268641][  T405] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fbd4abdebcb
[   28.268884][  T405] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   28.269128][  T405] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   28.269397][  T405] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffda8e193c0
[   28.269641][  T405] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffda8e1a865
| [   28.280474][  T405] ------------[ cut here ]------------
| [   28.280655][  T405] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/405
| [   28.280927][  T405] Modules linked in:
| [   28.281404][  T405] Tainted: [W]=WARN
[   28.281551][  T405] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.281761][  T405] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.281978][  T405] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.282508][  T405] RSP: 0018:ffa0000000f47a68 EFLAGS: 00010286
[   28.282720][  T405] RAX: 00000000ffffffa6 RBX: ff1100000cddd380 RCX: 1ff40000001e8f13
[   28.282960][  T405] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cddd43c
[   28.283213][  T405] RBP: ff1100000e509000 R08: 1fe22000019bba89 R09: ff1100000f295180
[   28.283468][  T405] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   28.283708][  T405] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e509000
[   28.283951][  T405] FS:  00007fbd4a91c840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   28.284240][  T405] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.284461][  T405] CR2: 00007f11c6aa1574 CR3: 000000000fc37002 CR4: 0000000000771ef0
[   28.284706][  T405] PKRU: 55555554
[   28.284850][  T405] Call Trace:
[   28.284995][  T405]  <TASK>
[   28.285110][  T405]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   28.285300][  T405]  ? notifier_call_chain (kernel/notifier.c:85)
[   28.285500][  T405]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   28.285652][  T405]  register_netdevice (net/core/dev.c:11488)
[   28.285837][  T405]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   28.286053][  T405]  register_netdev (net/core/dev.c:11552)
[   28.286248][  T405]  sit_init_net (net/ipv6/sit.c:1860)
[   28.286439][  T405]  ops_init (net/core/net_namespace.c:137)
[   28.286591][  T405]  setup_net (net/core/net_namespace.c:446)
[   28.286742][  T405]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   28.286918][  T405]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   28.287100][  T405]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   28.287294][  T405]  copy_net_ns (net/core/net_namespace.c:579)
[   28.287483][  T405]  create_new_namespaces (kernel/nsproxy.c:132)
[   28.287666][  T405]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   28.287846][  T405]  ksys_unshare (kernel/fork.c:3243)
[   28.288028][  T405]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   28.288220][  T405]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   28.288409][  T405]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   28.288591][  T405]  ? __ia32_sys_open (fs/open.c:1374)
[   28.288772][  T405]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   28.288950][  T405]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   28.289129][  T405]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   28.289324][  T405]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   28.289511][  T405]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   28.289691][  T405]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   28.289902][  T405] RIP: 0033:0x7fbd4abdebcb
[   28.290086][  T405] 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
[   28.290617][  T405] RSP: 002b:00007ffda8e17198 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   28.290863][  T405] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fbd4abdebcb
[   28.291106][  T405] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   28.291366][  T405] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   28.291614][  T405] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffda8e193c0
[   28.291856][  T405] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffda8e1a865
| [   28.297001][  T405] ------------[ cut here ]------------
| [   28.297208][  T405] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/405
| [   28.297488][  T405] Modules linked in:
| [   28.297947][  T405] Tainted: [W]=WARN
[   28.298093][  T405] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.298322][  T405] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.298551][  T405] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.299062][  T405] RSP: 0018:ffa0000000f47a78 EFLAGS: 00010286
[   28.299291][  T405] RAX: 00000000ffffffa6 RBX: ff1100000c917000 RCX: 1ff40000001e8f15
[   28.299541][  T405] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c9170bc
[   28.299782][  T405] RBP: ff1100000e4a4000 R08: 1fe2200001922e19 R09: ff1100000f295180
[   28.300024][  T405] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   28.300281][  T405] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e4a4000
[   28.300537][  T405] FS:  00007fbd4a91c840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   28.300816][  T405] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.301029][  T405] CR2: 00007f11c6aa1574 CR3: 000000000fc37002 CR4: 0000000000771ef0
[   28.301289][  T405] PKRU: 55555554
[   28.301446][  T405] Call Trace:
[   28.301597][  T405]  <TASK>
[   28.301713][  T405]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   28.301897][  T405]  ? notifier_call_chain (kernel/notifier.c:85)
[   28.302081][  T405]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   28.302243][  T405]  register_netdevice (net/core/dev.c:11488)
[   28.302431][  T405]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   28.302640][  T405]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.302827][  T405]  register_netdev (net/core/dev.c:11552)
[   28.303008][  T405]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   28.303205][  T405]  ops_init (net/core/net_namespace.c:137)
[   28.303362][  T405]  setup_net (net/core/net_namespace.c:446)
[   28.303511][  T405]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   28.303690][  T405]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   28.303871][  T405]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   28.304056][  T405]  copy_net_ns (net/core/net_namespace.c:579)
[   28.304251][  T405]  create_new_namespaces (kernel/nsproxy.c:132)
[   28.304444][  T405]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   28.304629][  T405]  ksys_unshare (kernel/fork.c:3243)
[   28.304812][  T405]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   28.304991][  T405]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   28.305183][  T405]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   28.305375][  T405]  ? __ia32_sys_open (fs/open.c:1374)
[   28.305556][  T405]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   28.305736][  T405]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   28.305950][  T405]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   28.306154][  T405]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   28.306339][  T405]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   28.306533][  T405]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   28.306748][  T405] RIP: 0033:0x7fbd4abdebcb
[   28.306940][  T405] 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
[   28.307486][  T405] RSP: 002b:00007ffda8e17198 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   28.307736][  T405] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fbd4abdebcb
[   28.308077][  T405] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   28.308345][  T405] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   28.308603][  T405] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffda8e193c0
[   28.308938][  T405] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffda8e1a865
| [   28.342199][  T406] ------------[ cut here ]------------
| [   28.342381][  T406] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/406
| [   28.342612][  T406] Modules linked in:
| [   28.342983][  T406] Tainted: [W]=WARN
[   28.343084][  T406] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.343259][  T406] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.343434][  T406] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.344107][  T406] RSP: 0018:ffa00000011a7020 EFLAGS: 00010286
[   28.344307][  T406] RAX: 00000000ffffffa6 RBX: ff110000060bf700 RCX: 1ff4000000234dca
[   28.344509][  T406] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000060bf7bc
[   28.344703][  T406] RBP: ff1100000a4f9000 R08: 1fe2200000c17ef9 R09: ff1100000f292e58
[   28.344898][  T406] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[   28.345126][  T406] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   28.345336][  T406] FS:  00007f7c0ae2a840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   28.345568][  T406] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.345731][  T406] CR2: 000000003cc2b988 CR3: 00000000120ae002 CR4: 0000000000771ef0
[   28.345928][  T406] PKRU: 55555554
[   28.346042][  T406] Call Trace:
[   28.346140][  T406]  <TASK>
[   28.346215][  T406]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   28.346354][  T406]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   28.346485][  T406]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   28.346618][  T406]  __dev_notify_flags (net/core/dev.c:9787)
[   28.346761][  T406]  ? netif_change_name (net/core/dev.c:1495)
[   28.346915][  T406]  ? __dev_change_flags (net/core/dev.c:9752)
[   28.347057][  T406]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   28.347193][  T406]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.347324][  T406]  ? 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))
[   28.347492][  T406]  netif_change_flags (net/core/dev.c:9820)
[   28.347627][  T406]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   28.347758][  T406]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   28.347909][  T406]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   28.348069][  T406]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   28.348676][  T406]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   28.348819][  T406]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   28.348951][  T406]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   28.349108][  T406]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   28.349254][  T406]  ? __kernel_text_address (kernel/extable.c:79)
[   28.349393][  T406]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   28.349529][  T406]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.349662][  T406]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   28.349796][  T406]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.349928][  T406]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   28.350059][  T406]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.350197][  T406]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.350333][  T406]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   28.350475][  T406]  ? __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)
[   28.350613][  T406]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   28.350747][  T406]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   28.350881][  T406]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   28.351014][  T406]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   28.351153][  T406]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   28.351296][  T406]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.351435][  T406]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   28.351569][  T406]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   28.351704][  T406]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   28.351837][  T406]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.351973][  T406]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.352105][  T406]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   28.352247][  T406]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   28.352384][  T406]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.352519][  T406]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   28.352655][  T406]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   28.352787][  T406]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   28.352920][  T406]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   28.353054][  T406]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   28.353194][  T406]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.353332][  T406]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   28.353474][  T406]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   28.353609][  T406]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   28.353745][  T406]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   28.353882][  T406]  ? 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))
[   28.354014][  T406]  ? 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))
[   28.354154][  T406]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   28.354292][  T406]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   28.354433][  T406]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   28.354571][  T406]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   28.354709][  T406]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   28.354847][  T406]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   28.354987][  T406]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   28.355123][  T406]  ? copy_msghdr_from_user (net/socket.c:2635)
[   28.355264][  T406]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   28.355432][  T406]  ? move_addr_to_kernel (net/socket.c:258)
[   28.355562][  T406]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   28.355692][  T406]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   28.355842][  T406]  ___sys_sendmsg (net/socket.c:2752)
[   28.355971][  T406]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   28.356134][  T406]  ? copy_msghdr_from_user (net/socket.c:2603)
[   28.356295][  T406]  __sys_sendmsg (net/socket.c:2784)
[   28.356430][  T406]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   28.356564][  T406]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   28.356746][  T406]  ? 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)
[   28.356879][  T406]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.357009][  T406]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   28.357138][  T406]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   28.357273][  T406]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   28.357407][  T406]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   28.357577][  T406] RIP: 0033:0x7f7c0b06408e
[   28.357714][  T406] 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
[   28.358184][  T406] RSP: 002b:00007ffd25922310 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   28.358386][  T406] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f7c0b06408e
[   28.358583][  T406] RDX: 0000000000000000 RSI: 00007ffd259223c0 RDI: 0000000000000005
[   28.358779][  T406] RBP: 00007ffd25922320 R08: 0000000000000000 R09: 0000000000000000
[   28.358975][  T406] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ea26
[   28.359175][  T406] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd25922a90
| [   28.481060][  T409] ------------[ cut here ]------------
| [   28.481258][  T409] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/409
| [   28.481520][  T409] Modules linked in:
| [   28.481913][  T409] Tainted: [W]=WARN
[   28.482018][  T409] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.482195][  T409] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.482380][  T409] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.482877][  T409] RSP: 0018:ffa00000011c6e30 EFLAGS: 00010286
[   28.483055][  T409] RAX: 00000000ffffffa6 RBX: ff1100000c7b7e00 RCX: 1ff4000000238d8c
[   28.483271][  T409] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c7b7ebc
[   28.483487][  T409] RBP: ff1100000e514000 R08: 1fe22000018f6fd9 R09: ff1100000fc15180
[   28.483694][  T409] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   28.483904][  T409] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009523c04
[   28.484108][  T409] FS:  00007fef2c349840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   28.484363][  T409] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.484537][  T409] CR2: 00000000004eb188 CR3: 000000000d13e002 CR4: 0000000000771ef0
[   28.484750][  T409] PKRU: 55555554
[   28.484853][  T409] Call Trace:
[   28.484956][  T409]  <TASK>
[   28.485027][  T409]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   28.485172][  T409]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   28.485276][  T409]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[   28.485455][  T409]  __dev_notify_flags (net/core/dev.c:9787)
[   28.485605][  T409]  ? netif_change_name (net/core/dev.c:1495)
[   28.485743][  T409]  ? rtnl_newlink (net/core/rtnetlink.c:4150)
[   28.485879][  T409]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   28.486014][  T409]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   28.486162][  T409]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[   28.486302][  T409]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.486450][  T409]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   28.486593][  T409]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   28.486731][  T409]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   28.486871][  T409]  ? queue_delayed_work_on (kernel/workqueue.c:2616 (discriminator 6))
[   28.487013][  T409]  veth_newlink (drivers/net/veth.c:1871)
[   28.487158][  T409]  ? veth_poll_controller (drivers/net/veth.c:1470)
[   28.487295][  T409]  ? kasan_save_stack (mm/kasan/common.c:57)
[   28.487441][  T409]  ? kasan_save_track (mm/kasan/common.c:78)
[   28.487578][  T409]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   28.487731][  T409]  ? __kvmalloc_node_noprof (mm/slub.c:5296 mm/slub.c:6832)
[   28.487868][  T409]  ? alloc_netdev_mqs (net/core/dev.c:12129 (discriminator 7))
[   28.488005][  T409]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   28.488147][  T409]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   28.488296][  T409]  ? rtnl_create_link (net/core/rtnetlink.c:3720)
[   28.488438][  T409]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   28.488577][  T409]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   28.488718][  T409]  ? __dev_get_by_name (net/core/dev.c:883)
[   28.488860][  T409]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   28.489004][  T409]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   28.489150][  T409]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   28.489288][  T409]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.489428][  T409]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   28.489565][  T409]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   28.489700][  T409]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   28.489836][  T409]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.489977][  T409]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.490115][  T409]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   28.490256][  T409]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   28.490396][  T409]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   28.490533][  T409]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   28.490674][  T409]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   28.490814][  T409]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.490949][  T409]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   28.491085][  T409]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   28.491225][  T409]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   28.491367][  T409]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   28.491508][  T409]  ? 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))
[   28.491643][  T409]  ? 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))
[   28.491780][  T409]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   28.491919][  T409]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   28.492056][  T409]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   28.492202][  T409]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   28.492349][  T409]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   28.492493][  T409]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   28.492632][  T409]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   28.492767][  T409]  ? copy_msghdr_from_user (net/socket.c:2635)
[   28.492901][  T409]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   28.493069][  T409]  ? move_addr_to_kernel (net/socket.c:258)
[   28.493214][  T409]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.493360][  T409]  ? rcu_read_unlock (./include/linux/rcupdate.h:867 (discriminator 5))
[   28.493541][  T409]  ___sys_sendmsg (net/socket.c:2752)
[   28.493679][  T409]  ? wp_page_copy (./include/linux/pgtable.h:117 mm/memory.c:3976)
[   28.493828][  T409]  ? copy_msghdr_from_user (net/socket.c:2603)
[   28.493972][  T409]  ? do_wp_page (./include/linux/pgtable.h:117 mm/memory.c:4331)
[   28.494113][  T409]  ? 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))
[   28.494269][  T409]  __sys_sendmsg (net/socket.c:2784)
[   28.494414][  T409]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   28.494559][  T409]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.494702][  T409]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.494844][  T409]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   28.494987][  T409]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   28.495128][  T409]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   28.495281][  T409]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   28.495461][  T409] RIP: 0033:0x7fef2c58308e
[   28.495609][  T409] 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
[   28.496093][  T409] RSP: 002b:00007ffcd56dd2d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   28.496303][  T409] RAX: ffffffffffffffda RBX: 00007ffcd56dda80 RCX: 00007fef2c58308e
[   28.496526][  T409] RDX: 0000000000000000 RSI: 00007ffcd56dd380 RDI: 0000000000000005
[   28.496737][  T409] RBP: 00007ffcd56dd2e0 R08: 0000000000000000 R09: 0000000000000000
[   28.496947][  T409] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ea26
[   28.497161][  T409] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffcd56dda58
| [   28.504742][  T409] ------------[ cut here ]------------
| [   28.504907][  T409] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/409
| [   28.505136][  T409] Modules linked in:
| [   28.505989][  T409] Tainted: [W]=WARN
[   28.506094][  T409] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.506270][  T409] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.506445][  T409] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.506918][  T409] RSP: 0018:ffa00000011c71b0 EFLAGS: 00010286
[   28.507100][  T409] RAX: 00000000ffffffa6 RBX: ff1100000be57a80 RCX: 1ff4000000238dfc
[   28.507306][  T409] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000be57b3c
[   28.507507][  T409] RBP: ff1100000d3d4000 R08: 1fe22000017caf69 R09: ff1100000fc15180
[   28.507706][  T409] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   28.507905][  T409] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffb6403b20
[   28.508106][  T409] FS:  00007fef2c349840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   28.508343][  T409] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.508529][  T409] CR2: 00000000004eb188 CR3: 000000000d13e002 CR4: 0000000000771ef0
[   28.508729][  T409] PKRU: 55555554
[   28.508830][  T409] Call Trace:
[   28.508930][  T409]  <TASK>
[   28.508999][  T409]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   28.509133][  T409]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   28.509240][  T409]  __dev_notify_flags (net/core/dev.c:9787)
[   28.509389][  T409]  ? netif_change_name (net/core/dev.c:1495)
[   28.509523][  T409]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   28.509664][  T409]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   28.509805][  T409]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   28.509940][  T409]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   28.510075][  T409]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   28.510215][  T409]  ? __dev_get_by_name (net/core/dev.c:883)
[   28.510352][  T409]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   28.510491][  T409]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   28.510639][  T409]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   28.510776][  T409]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.510910][  T409]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   28.511043][  T409]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   28.511181][  T409]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   28.511322][  T409]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.511463][  T409]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.511600][  T409]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   28.511734][  T409]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   28.511876][  T409]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   28.512008][  T409]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   28.512146][  T409]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   28.512282][  T409]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.512419][  T409]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   28.512554][  T409]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   28.512688][  T409]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   28.512822][  T409]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   28.512976][  T409]  ? 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))
[   28.513113][  T409]  ? 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))
[   28.513254][  T409]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   28.513400][  T409]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   28.513540][  T409]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   28.513680][  T409]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   28.513820][  T409]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   28.513969][  T409]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   28.514112][  T409]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   28.514254][  T409]  ? copy_msghdr_from_user (net/socket.c:2635)
[   28.514400][  T409]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   28.514572][  T409]  ? move_addr_to_kernel (net/socket.c:258)
[   28.514711][  T409]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.514848][  T409]  ? rcu_read_unlock (./include/linux/rcupdate.h:867 (discriminator 5))
[   28.514988][  T409]  ___sys_sendmsg (net/socket.c:2752)
[   28.515121][  T409]  ? wp_page_copy (./include/linux/pgtable.h:117 mm/memory.c:3976)
[   28.515259][  T409]  ? copy_msghdr_from_user (net/socket.c:2603)
[   28.515402][  T409]  ? do_wp_page (./include/linux/pgtable.h:117 mm/memory.c:4331)
[   28.515539][  T409]  ? 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))
[   28.515688][  T409]  __sys_sendmsg (net/socket.c:2784)
[   28.515823][  T409]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   28.515960][  T409]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.516095][  T409]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.516235][  T409]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   28.516384][  T409]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   28.516520][  T409]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   28.516660][  T409]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   28.516832][  T409] RIP: 0033:0x7fef2c58308e
[   28.516974][  T409] 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
[   28.517477][  T409] RSP: 002b:00007ffcd56dd2d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   28.517686][  T409] RAX: ffffffffffffffda RBX: 00007ffcd56dda80 RCX: 00007fef2c58308e
[   28.517893][  T409] RDX: 0000000000000000 RSI: 00007ffcd56dd380 RDI: 0000000000000005
[   28.518101][  T409] RBP: 00007ffcd56dd2e0 R08: 0000000000000000 R09: 0000000000000000
[   28.518317][  T409] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ea26
[   28.518527][  T409] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffcd56dda58
| [   28.802658][  T418] ------------[ cut here ]------------
| [   28.802870][  T418] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/418
| [   28.803168][  T418] Modules linked in:
| [   28.803674][  T418] Tainted: [W]=WARN
[   28.803819][  T418] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.804028][  T418] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.804375][  T418] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.804882][  T418] RSP: 0018:ffa0000001257020 EFLAGS: 00010286
[   28.805092][  T418] RAX: 00000000ffffffa6 RBX: ff11000002400e40 RCX: 1ff400000024adca
[   28.805345][  T418] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000002400efc
[   28.805592][  T418] RBP: ff1100000d3d4000 R08: 1fe22000004801e1 R09: ff1100000fc12e58
[   28.805832][  T418] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[   28.806071][  T418] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   28.806321][  T418] FS:  00007f2346ec5840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   28.806605][  T418] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.806815][  T418] CR2: 00000000010cd988 CR3: 000000000f27d002 CR4: 0000000000771ef0
[   28.807056][  T418] PKRU: 55555554
[   28.807213][  T418] Call Trace:
[   28.807365][  T418]  <TASK>
[   28.807479][  T418]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   28.807661][  T418]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   28.807808][  T418]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   28.807986][  T418]  __dev_notify_flags (net/core/dev.c:9787)
[   28.808182][  T418]  ? netif_change_name (net/core/dev.c:1495)
[   28.808367][  T418]  ? __dev_change_flags (net/core/dev.c:9752)
[   28.808545][  T418]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   28.808723][  T418]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.808904][  T418]  ? 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))
[   28.809087][  T418]  netif_change_flags (net/core/dev.c:9820)
[   28.809279][  T418]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   28.809461][  T418]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   28.809642][  T418]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   28.809823][  T418]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   28.810044][  T418]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   28.810392][  T418]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   28.810574][  T418]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   28.810752][  T418]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   28.810931][  T418]  ? __kernel_text_address (kernel/extable.c:79)
[   28.811110][  T418]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   28.811303][  T418]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.811490][  T418]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   28.811669][  T418]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.811848][  T418]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   28.812024][  T418]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.812216][  T418]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.812411][  T418]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   28.812591][  T418]  ? __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)
[   28.812769][  T418]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   28.812949][  T418]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   28.813128][  T418]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   28.813322][  T418]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   28.813512][  T418]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   28.813693][  T418]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.813873][  T418]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   28.814054][  T418]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   28.814247][  T418]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   28.814431][  T418]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.814612][  T418]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.814787][  T418]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   28.814965][  T418]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   28.815168][  T418]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.815361][  T418]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   28.815549][  T418]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   28.815732][  T418]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   28.815914][  T418]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   28.816097][  T418]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   28.816294][  T418]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.816484][  T418]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   28.816669][  T418]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   28.816854][  T418]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   28.817039][  T418]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   28.817240][  T418]  ? 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))
[   28.817430][  T418]  ? 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))
[   28.817618][  T418]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   28.817806][  T418]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   28.817990][  T418]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   28.818189][  T418]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   28.818383][  T418]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   28.818569][  T418]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   28.818755][  T418]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   28.818939][  T418]  ? copy_msghdr_from_user (net/socket.c:2635)
[   28.819124][  T418]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   28.819361][  T418]  ? move_addr_to_kernel (net/socket.c:258)
[   28.819546][  T418]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   28.819731][  T418]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   28.819917][  T418]  ___sys_sendmsg (net/socket.c:2752)
[   28.820100][  T418]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   28.820329][  T418]  ? copy_msghdr_from_user (net/socket.c:2603)
[   28.820535][  T418]  __sys_sendmsg (net/socket.c:2784)
[   28.820721][  T418]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   28.820902][  T418]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   28.821122][  T418]  ? 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)
[   28.821319][  T418]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.821514][  T418]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   28.821699][  T418]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   28.821883][  T418]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   28.822069][  T418]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   28.822294][  T418] RIP: 0033:0x7f23470ff08e
[   28.822492][  T418] 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
[   28.823014][  T418] RSP: 002b:00007ffd65b41690 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   28.823277][  T418] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f23470ff08e
[   28.823526][  T418] RDX: 0000000000000000 RSI: 00007ffd65b41740 RDI: 0000000000000005
[   28.823777][  T418] RBP: 00007ffd65b416a0 R08: 0000000000000000 R09: 0000000000000000
[   28.824025][  T418] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ea27
[   28.824286][  T418] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd65b41e18
| [   28.851164][  T419] ------------[ cut here ]------------
| [   28.851325][  T419] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/419
| [   28.851576][  T419] Modules linked in:
| [   28.851950][  T419] Tainted: [W]=WARN
[   28.852050][  T419] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.852222][  T419] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.852400][  T419] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.852874][  T419] RSP: 0018:ffa0000001257020 EFLAGS: 00010286
[   28.853041][  T419] RAX: 00000000ffffffa6 RBX: ff1100000cd96c80 RCX: 1ff400000024adca
[   28.853246][  T419] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cd96d3c
[   28.853449][  T419] RBP: ff1100000e514000 R08: 1fe22000019b2da9 R09: ff11000009e12e58
[   28.853646][  T419] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[   28.853843][  T419] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   28.854045][  T419] FS:  00007fa30a932840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   28.854286][  T419] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.854454][  T419] CR2: 00007fa30ac021a0 CR3: 0000000009dc7005 CR4: 0000000000771ef0
[   28.854647][  T419] PKRU: 55555554
[   28.854744][  T419] Call Trace:
[   28.854840][  T419]  <TASK>
[   28.854908][  T419]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   28.855038][  T419]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   28.855139][  T419]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   28.855283][  T419]  __dev_notify_flags (net/core/dev.c:9787)
[   28.855423][  T419]  ? netif_change_name (net/core/dev.c:1495)
[   28.855557][  T419]  ? __dev_change_flags (net/core/dev.c:9752)
[   28.855690][  T419]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   28.855822][  T419]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.855955][  T419]  ? 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))
[   28.856090][  T419]  netif_change_flags (net/core/dev.c:9820)
[   28.856229][  T419]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   28.856366][  T419]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   28.856501][  T419]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   28.856635][  T419]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   28.856799][  T419]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   28.856931][  T419]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   28.857064][  T419]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   28.857258][  T419]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   28.857393][  T419]  ? __kernel_text_address (kernel/extable.c:79)
[   28.857527][  T419]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   28.857660][  T419]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.857791][  T419]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   28.857927][  T419]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.858062][  T419]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   28.858252][  T419]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.858390][  T419]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.858523][  T419]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   28.858658][  T419]  ? __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)
[   28.858794][  T419]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   28.858929][  T419]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   28.859065][  T419]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   28.859289][  T419]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   28.859517][  T419]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   28.859652][  T419]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.859785][  T419]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   28.859917][  T419]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   28.860050][  T419]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   28.860258][  T419]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.860433][  T419]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.860568][  T419]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   28.860701][  T419]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   28.860836][  T419]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.860971][  T419]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   28.861106][  T419]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   28.861276][  T419]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   28.861418][  T419]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   28.861553][  T419]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   28.861684][  T419]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.861814][  T419]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   28.861949][  T419]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   28.862081][  T419]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   28.862221][  T419]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   28.862362][  T419]  ? 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))
[   28.862497][  T419]  ? 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))
[   28.862633][  T419]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   28.862768][  T419]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   28.862902][  T419]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   28.863037][  T419]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   28.863178][  T419]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   28.863312][  T419]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   28.863452][  T419]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   28.863588][  T419]  ? copy_msghdr_from_user (net/socket.c:2635)
[   28.863723][  T419]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   28.863889][  T419]  ? move_addr_to_kernel (net/socket.c:258)
[   28.864027][  T419]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   28.864166][  T419]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   28.864299][  T419]  ___sys_sendmsg (net/socket.c:2752)
[   28.864437][  T419]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   28.864666][  T419]  ? copy_msghdr_from_user (net/socket.c:2603)
[   28.864853][  T419]  __sys_sendmsg (net/socket.c:2784)
[   28.864988][  T419]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   28.865123][  T419]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   28.865296][  T419]  ? 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)
[   28.865437][  T419]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.865570][  T419]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   28.865706][  T419]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   28.865898][  T419]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   28.866090][  T419]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   28.866363][  T419] RIP: 0033:0x7fa30ab6c08e
[   28.866575][  T419] 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
[   28.867195][  T419] RSP: 002b:00007ffce598f2e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   28.867404][  T419] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fa30ab6c08e
[   28.867602][  T419] RDX: 0000000000000000 RSI: 00007ffce598f390 RDI: 0000000000000005
[   28.867797][  T419] RBP: 00007ffce598f2f0 R08: 0000000000000000 R09: 0000000000000000
[   28.868005][  T419] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ea27
[   28.868212][  T419] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffce598fa68
| [   28.870439][   T36] ------------[ cut here ]------------
| [   28.870580][   T36] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/36
| [   28.870831][   T36] Modules linked in:
| [   28.871766][   T36] Tainted: [W]=WARN
[   28.871864][   T36] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.872021][   T36] Workqueue: events_unbound linkwatch_event
[   28.872200][   T36] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.872367][   T36] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.872814][   T36] RSP: 0018:ffa000000028f9e0 EFLAGS: 00010286
[   28.872971][   T36] RAX: 00000000ffffffa6 RBX: ff1100000cd978c0 RCX: 1ff4000000051f02
[   28.873164][   T36] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cd9797c
[   28.873358][   T36] RBP: ff1100000d3d4000 R08: 1fe22000019b2f31 R09: ff11000001d751a8
[   28.873548][   T36] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
[   28.873733][   T36] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   28.873919][   T36] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   28.874149][   T36] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.874309][   T36] CR2: 00007fa30ac021a0 CR3: 000000003c54d003 CR4: 0000000000771ef0
[   28.874503][   T36] PKRU: 55555554
[   28.874596][   T36] Call Trace:
[   28.874688][   T36]  <TASK>
[   28.874754][   T36]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   28.874879][   T36]  ? notifier_call_chain (kernel/notifier.c:85)
[   28.875005][   T36]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   28.875100][   T36]  netif_state_change (net/core/dev.c:1605)
[   28.875233][   T36]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[   28.875397][   T36]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[   28.875521][   T36]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   28.875645][   T36]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   28.875772][   T36]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   28.875896][   T36]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   28.876021][   T36]  process_one_work (kernel/workqueue.c:3314)
[   28.876156][   T36]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   28.876284][   T36]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.876421][   T36]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   28.876550][   T36]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   28.876674][   T36]  kthread (kernel/kthread.c:436)
[   28.876768][   T36]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.877015][   T36]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.877138][   T36]  ret_from_fork (arch/x86/kernel/process.c:158)
[   28.877267][   T36]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   28.877421][   T36]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   28.877641][   T36]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.877767][   T36]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   29.770625][   T60] ------------[ cut here ]------------
| [   29.770875][   T60] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/60
| [   29.771199][   T60] Modules linked in:
| [   29.771682][   T60] Tainted: [W]=WARN
[   29.771822][   T60] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.772025][   T60] Workqueue: events_unbound linkwatch_event
[   29.772249][   T60] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   29.772460][   T60] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   29.772944][   T60] RSP: 0018:ffa000000040f9e0 EFLAGS: 00010286
[   29.773176][   T60] RAX: 00000000ffffffa6 RBX: ff1100000cddde00 RCX: 1ff4000000081f02
[   29.773419][   T60] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cdddebc
[   29.773654][   T60] RBP: ff1100000e514000 R08: 1fe22000019bbbd9 R09: ff110000052ad1a8
[   29.773885][   T60] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000000
[   29.774115][   T60] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   29.774370][   T60] FS:  0000000000000000(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   29.774637][   T60] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.774841][   T60] CR2: 00007f98b3a6f808 CR3: 000000003c54d003 CR4: 0000000000771ef0
[   29.775086][   T60] PKRU: 55555554
[   29.775240][   T60] Call Trace:
[   29.775398][   T60]  <TASK>
[   29.775512][   T60]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   29.775687][   T60]  ? notifier_call_chain (kernel/notifier.c:85)
[   29.775860][   T60]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   29.776002][   T60]  netif_state_change (net/core/dev.c:1605)
[   29.776190][   T60]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[   29.776400][   T60]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[   29.776573][   T60]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   29.776745][   T60]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   29.776918][   T60]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   29.777087][   T60]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   29.777272][   T60]  process_one_work (kernel/workqueue.c:3314)
[   29.777456][   T60]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   29.777627][   T60]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   29.777802][   T60]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   29.777975][   T60]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   29.778160][   T60]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   29.778333][   T60]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   29.778512][   T60]  kthread (kernel/kthread.c:436)
[   29.778653][   T60]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.778855][   T60]  ? kthread_affine_node (kernel/kthread.c:378)
[   29.779026][   T60]  ret_from_fork (arch/x86/kernel/process.c:158)
[   29.779213][   T60]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   29.779422][   T60]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   29.779595][   T60]  ? kthread_affine_node (kernel/kthread.c:378)
[   29.779766][   T60]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   30.962045][   T12] ------------[ cut here ]------------
| [   30.962224][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   30.962481][   T12] Modules linked in:
| [   30.962866][   T12] Tainted: [W]=WARN
[   30.962959][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.963111][   T12] Workqueue: netns cleanup_net
[   30.963253][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.963421][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   30.963875][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   30.964030][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c909700 RCX: 1ff4000000018eed
[   30.964220][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c9097bc
[   30.964408][   T12] RBP: ff1100000f0e4000 R08: 1fe22000019212f9 R09: ff11000001aed1d0
[   30.964596][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   30.964779][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   30.964969][   T12] FS:  0000000000000000(0000) GS:ff110000b3c47000(0000) knlGS:0000000000000000
[   30.965186][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.965343][   T12] CR2: 00007fa032f76430 CR3: 000000003c54d003 CR4: 0000000000771ef0
[   30.965531][   T12] PKRU: 55555554
[   30.965628][   T12] Call Trace:
[   30.965722][   T12]  <TASK>
[   30.965793][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   30.965955][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   30.966107][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   30.966239][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   30.966368][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   30.966492][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   30.966614][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   30.966740][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   30.966866][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   30.966989][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.967115][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   30.967303][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   30.967430][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   30.967553][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   30.967678][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.967804][   T12]  process_one_work (kernel/workqueue.c:3314)
[   30.967931][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   30.968052][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   30.968261][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   30.968453][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   30.968581][   T12]  kthread (kernel/kthread.c:436)
[   30.968673][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   30.968827][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   30.968949][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   30.969072][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   30.969292][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   30.969418][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   30.969539][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   30.981010][   T12] ------------[ cut here ]------------
| [   30.981206][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   30.981503][   T12] Modules linked in:
| [   30.981975][   T12] Tainted: [W]=WARN
[   30.982111][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.982324][   T12] Workqueue: netns cleanup_net
[   30.982512][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.982718][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   30.983237][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   30.983449][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c909c40 RCX: 1ff4000000018eed
[   30.983675][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c909cfc
[   30.983903][   T12] RBP: ff1100000f379000 R08: 1fe22000019213a1 R09: ff11000001aed1d0
[   30.984237][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   30.984547][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   30.984844][   T12] FS:  0000000000000000(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   30.985217][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.985528][   T12] CR2: 00007f4574d6a430 CR3: 000000000ebde004 CR4: 0000000000771ef0
[   30.985832][   T12] PKRU: 55555554
[   30.986113][   T12] Call Trace:
[   30.986350][   T12]  <TASK>
[   30.986559][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   30.986851][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   30.987139][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   30.987494][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   30.987742][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   30.987966][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   30.988234][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   30.988415][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   30.988588][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   30.988757][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.988931][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   30.989107][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   30.989285][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   30.989493][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   30.989664][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.989835][   T12]  process_one_work (kernel/workqueue.c:3314)
[   30.990011][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   30.990194][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   30.990382][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   30.990556][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   30.990724][   T12]  kthread (kernel/kthread.c:436)
[   30.990864][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   30.991061][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   30.991243][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   30.991423][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   30.991623][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   30.991792][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   30.991962][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   30.995042][   T12] ------------[ cut here ]------------
| [   30.995681][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   30.995982][   T12] Modules linked in:
| [   30.996466][   T12] Tainted: [W]=WARN
[   30.996637][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.996841][   T12] Workqueue: netns cleanup_net
[   30.997016][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.997234][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   30.997726][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   30.997924][   T12] RAX: 00000000ffffffa6 RBX: ff110000092b51c0 RCX: 1ff4000000018eed
[   30.998166][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000092b527c
[   30.998400][   T12] RBP: ff1100000e479000 R08: 1fe2200001256a51 R09: ff11000001aed1d0
[   30.998629][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   30.998862][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   30.999090][   T12] FS:  0000000000000000(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   30.999372][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.999574][   T12] CR2: 00007f4574d6a430 CR3: 000000003c54d005 CR4: 0000000000771ef0
[   30.999810][   T12] PKRU: 55555554
[   30.999948][   T12] Call Trace:
[   31.000088][   T12]  <TASK>
[   31.000212][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   31.000424][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   31.000631][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   31.000802][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   31.000973][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   31.001159][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   31.001333][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   31.001515][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   31.001689][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   31.001856][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   31.002034][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   31.002220][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   31.002398][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   31.002570][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   31.002740][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.002913][   T12]  process_one_work (kernel/workqueue.c:3314)
[   31.003088][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   31.003272][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   31.003461][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   31.003718][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   31.003916][   T12]  kthread (kernel/kthread.c:436)
[   31.004130][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   31.004427][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   31.004598][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   31.004771][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   31.005046][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   31.005236][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   31.005430][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   31.008198][   T12] ------------[ cut here ]------------
| [   31.008371][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   31.008659][   T12] Modules linked in:
| [   31.009646][   T12] Tainted: [W]=WARN
[   31.009836][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.010082][   T12] Workqueue: netns cleanup_net
[   31.010315][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   31.010575][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   31.011099][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   31.011367][   T12] RAX: 00000000ffffffa6 RBX: ff110000092b4040 RCX: 1ff4000000018eed
[   31.011641][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000092b40fc
[   31.011922][   T12] RBP: ff11000009591000 R08: 1fe2200001256821 R09: ff11000001aed1d0
[   31.012205][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   31.012488][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   31.012763][   T12] FS:  0000000000000000(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   31.013069][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.013325][   T12] CR2: 00007f4574d6a430 CR3: 000000003c54d005 CR4: 0000000000771ef0
[   31.013604][   T12] PKRU: 55555554
[   31.013784][   T12] Call Trace:
[   31.013964][   T12]  <TASK>
[   31.014120][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   31.014389][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   31.014634][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   31.014847][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   31.015065][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   31.015292][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   31.015525][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   31.015798][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   31.016100][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   31.016378][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   31.016648][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   31.016905][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   31.017111][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   31.017292][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   31.017480][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.017650][   T12]  process_one_work (kernel/workqueue.c:3314)
[   31.017822][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   31.017987][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   31.018169][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   31.018338][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   31.018512][   T12]  kthread (kernel/kthread.c:436)
[   31.018679][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   31.018884][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   31.019053][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   31.019237][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   31.019440][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   31.019606][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   31.019852][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   31.022651][   T12] ------------[ cut here ]------------
| [   31.022884][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   31.023657][   T12] Modules linked in:
| [   31.024221][   T12] Tainted: [W]=WARN
[   31.024415][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.024659][   T12] Workqueue: netns cleanup_net
[   31.024882][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   31.025194][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   31.025780][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   31.026022][   T12] RAX: 00000000ffffffa6 RBX: ff110000092b4580 RCX: 1ff4000000018eed
[   31.026301][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000092b463c
[   31.026605][   T12] RBP: ff11000008b69000 R08: 1fe22000012568c9 R09: ff11000001aed1d0
[   31.026873][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   31.027158][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   31.027573][   T12] FS:  0000000000000000(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   31.027934][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.028191][   T12] CR2: 00007f4574d6a430 CR3: 000000003c54d005 CR4: 0000000000771ef0
[   31.028471][   T12] PKRU: 55555554
[   31.028670][   T12] Call Trace:
[   31.028855][   T12]  <TASK>
[   31.029019][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   31.029352][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   31.029605][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   31.029816][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   31.030053][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   31.030368][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   31.030581][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   31.030793][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   31.031056][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   31.031334][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   31.031623][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   31.031962][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   31.032248][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   31.032518][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   31.032848][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.033120][   T12]  process_one_work (kernel/workqueue.c:3314)
[   31.033408][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   31.033574][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   31.033747][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   31.033917][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   31.034097][   T12]  kthread (kernel/kthread.c:436)
[   31.034249][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   31.034454][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   31.034625][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   31.034791][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   31.034999][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   31.035180][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   31.035346][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   31.048338][   T12] ------------[ cut here ]------------
| [   31.048545][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   31.048840][   T12] Modules linked in:
| [   31.049556][   T12] Tainted: [W]=WARN
[   31.049743][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.049953][   T12] Workqueue: netns cleanup_net
[   31.050177][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   31.050403][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   31.050908][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   31.051161][   T12] RAX: 00000000ffffffa6 RBX: ff110000092b5000 RCX: 1ff4000000018eaf
[   31.051412][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000092b50bc
[   31.051647][   T12] RBP: ff1100000e514000 R08: 1fe2200001256a19 R09: ff11000001aed1d0
[   31.051884][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000041
[   31.052115][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000d3d4000
[   31.052369][   T12] FS:  0000000000000000(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   31.052633][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.052879][   T12] CR2: 00007f4574d6a430 CR3: 000000003c54d005 CR4: 0000000000771ef0
[   31.053119][   T12] PKRU: 55555554
[   31.053273][   T12] Call Trace:
[   31.053428][   T12]  <TASK>
[   31.053571][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   31.053816][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   31.054005][   T12]  netif_close_many (net/core/dev.c:1804)
[   31.054199][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   31.054382][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.054560][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.054734][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   31.054910][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   31.055116][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   31.055339][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   31.055522][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   31.055728][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   31.055902][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   31.056077][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   31.056295][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   31.056483][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   31.056662][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   31.056841][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   31.057021][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   31.057226][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   31.057418][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   31.057596][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   31.057807][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   31.057985][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   31.058172][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   31.058386][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   31.058572][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.058781][   T12]  process_one_work (kernel/workqueue.c:3314)
[   31.058989][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   31.059178][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   31.059364][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   31.059572][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   31.059752][   T12]  kthread (kernel/kthread.c:436)
[   31.059901][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   31.060106][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   31.060293][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   31.060505][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   31.060710][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   31.060884][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   31.061061][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   31.064578][   T12] ------------[ cut here ]------------
| [   31.064723][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   31.064974][   T12] Modules linked in:
| [   31.065456][   T12] Tainted: [W]=WARN
[   31.065607][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.065766][   T12] Workqueue: netns cleanup_net
[   31.065903][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   31.066069][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   31.066580][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   31.066742][   T12] RAX: 00000000ffffffa6 RBX: ff11000009066740 RCX: 1ff4000000018eaf
[   31.066933][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000090667fc
[   31.067125][   T12] RBP: ff1100000d3d4000 R08: 1fe220000120cd01 R09: ff11000001aed1d0
[   31.067369][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   31.067557][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e329000
[   31.067753][   T12] FS:  0000000000000000(0000) GS:ff110000b3c47000(0000) knlGS:0000000000000000
[   31.067973][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.068129][   T12] CR2: 00007f85f7c23668 CR3: 000000003c54d005 CR4: 0000000000771ef0
[   31.068380][   T12] PKRU: 55555554
[   31.068474][   T12] Call Trace:
[   31.068570][   T12]  <TASK>
[   31.068637][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   31.068762][   T12]  ? notifier_call_chain (kernel/notifier.c:85)
[   31.068909][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   31.069005][   T12]  netif_close_many (net/core/dev.c:1804)
[   31.069129][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   31.069319][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.069452][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.069577][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   31.069702][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   31.069859][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   31.070014][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   31.070244][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   31.070406][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   31.070530][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   31.070654][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   31.070810][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   31.070945][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   31.071073][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   31.071278][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   31.071408][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   31.071547][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   31.071679][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   31.071803][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   31.071931][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   31.072058][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   31.072248][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   31.072394][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   31.072517][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.072671][   T12]  process_one_work (kernel/workqueue.c:3314)
[   31.072804][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   31.072929][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   31.073058][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   31.073262][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   31.073393][   T12]  kthread (kernel/kthread.c:436)
[   31.073487][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   31.073649][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   31.073775][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   31.073924][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   31.074085][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   31.074268][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   31.074399][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   31.078448][   T12] ------------[ cut here ]------------
| [   31.078586][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   31.078835][   T12] Modules linked in:
| [   31.079676][   T12] Tainted: [W]=WARN
[   31.079849][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.080007][   T12] Workqueue: netns cleanup_net
[   31.080135][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   31.080385][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   31.080832][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   31.080992][   T12] RAX: 00000000ffffffa6 RBX: ff1100000be56c80 RCX: 1ff4000000018eaf
[   31.081328][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000be56d3c
[   31.081545][   T12] RBP: ff1100000e329000 R08: 1fe22000017cada9 R09: ff11000001aed1d0
[   31.081735][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   31.081920][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000000c77e0
[   31.082106][   T12] FS:  0000000000000000(0000) GS:ff110000b3c47000(0000) knlGS:0000000000000000
[   31.082435][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.082595][   T12] CR2: 00007f85f7c23668 CR3: 000000003c54d005 CR4: 0000000000771ef0
[   31.082782][   T12] PKRU: 55555554
[   31.082877][   T12] Call Trace:
[   31.082980][   T12]  <TASK>
[   31.083046][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   31.083377][   T12]  ? notifier_call_chain (kernel/notifier.c:85)
[   31.083503][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   31.083600][   T12]  netif_close_many (net/core/dev.c:1804)
[   31.083724][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   31.083847][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.083973][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.084101][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   31.084331][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   31.084492][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   31.084649][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   31.084775][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   31.084933][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   31.085056][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   31.085274][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   31.085440][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   31.085574][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   31.085823][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   31.085951][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   31.086075][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   31.086297][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   31.086429][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   31.086552][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   31.086677][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   31.086813][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   31.086965][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   31.087090][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   31.087296][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.087428][   T12]  process_one_work (kernel/workqueue.c:3314)
[   31.087555][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   31.087679][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   31.087807][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   31.087936][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   31.088064][   T12]  kthread (kernel/kthread.c:436)
[   31.088242][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   31.088403][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   31.088526][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   31.088651][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   31.088805][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   31.088929][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   31.089053][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   31.091996][   T12] ------------[ cut here ]------------
| [   31.092129][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   31.092393][   T12] Modules linked in:
| [   31.092757][   T12] Tainted: [W]=WARN
[   31.092878][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.093029][   T12] Workqueue: netns cleanup_net
[   31.093157][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   31.093366][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   31.093801][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   31.093953][   T12] RAX: 00000000ffffffa6 RBX: ff11000009b143c0 RCX: 1ff4000000018ed5
[   31.094167][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009b1447c
[   31.094364][   T12] RBP: ff1100000e514000 R08: 1fe2200001362891 R09: ff11000001aed1d0
[   31.094553][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   31.094727][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   31.094905][   T12] FS:  0000000000000000(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   31.095117][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.095321][   T12] CR2: 00007f85f7c25000 CR3: 000000003c54d005 CR4: 0000000000771ef0
[   31.095502][   T12] PKRU: 55555554
[   31.095590][   T12] Call Trace:
[   31.095677][   T12]  <TASK>
[   31.095741][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   31.095900][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   31.096048][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   31.096216][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   31.096387][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   31.096542][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   31.096666][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   31.096787][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   31.096905][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   31.097024][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   31.097193][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   31.097311][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   31.097466][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   31.097590][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   31.097714][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   31.097835][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   31.097955][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.098075][   T12]  process_one_work (kernel/workqueue.c:3314)
[   31.098246][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   31.098369][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   31.098492][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   31.098614][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   31.098736][   T12]  kthread (kernel/kthread.c:436)
[   31.098825][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   31.098971][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   31.099089][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   31.099252][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   31.099408][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   31.099528][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   31.099646][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   31.102008][   T12] ------------[ cut here ]------------
| [   31.102155][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   31.102395][   T12] Modules linked in:
| [   31.102758][   T12] Tainted: [W]=WARN
[   31.102871][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.103058][   T12] Workqueue: netns cleanup_net
[   31.103187][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   31.103344][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   31.104087][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   31.104241][   T12] RAX: 00000000ffffffa6 RBX: ff1100000b1b43c0 RCX: 1ff4000000018ed5
[   31.104423][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b1b447c
[   31.104599][   T12] RBP: ff1100000d3d4000 R08: 1fe2200001636891 R09: ff11000001aed1d0
[   31.104784][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   31.104960][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   31.105139][   T12] FS:  0000000000000000(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   31.105623][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.105770][   T12] CR2: 00007f85f7c25000 CR3: 000000003c54d005 CR4: 0000000000771ef0
[   31.105956][   T12] PKRU: 55555554
[   31.106048][   T12] Call Trace:
[   31.106137][   T12]  <TASK>
[   31.106207][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   31.106371][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   31.106520][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   31.106659][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   31.106778][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   31.106953][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   31.107081][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   31.107208][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   31.107327][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   31.107459][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   31.107584][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   31.107700][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   31.107823][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   31.107943][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   31.108062][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   31.108185][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   31.108303][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.108436][   T12]  process_one_work (kernel/workqueue.c:3314)
[   31.108560][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   31.108678][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   31.108801][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   31.108936][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   31.109055][   T12]  kthread (kernel/kthread.c:436)
[   31.109151][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   31.109300][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   31.109423][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   31.109542][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   31.109689][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   31.109855][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   31.109980][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   31.112348][   T12] ------------[ cut here ]------------
| [   31.112478][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   31.112711][   T12] Modules linked in:
| [   31.113099][   T12] Tainted: [W]=WARN
[   31.113792][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.113972][   T12] Workqueue: netns cleanup_net
[   31.114097][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   31.114301][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   31.114752][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   31.114902][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c3be040 RCX: 1ff4000000018ed5
[   31.115079][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c3be0fc
[   31.115303][   T12] RBP: ff1100000e329000 R08: 1fe2200001877c21 R09: ff11000001aed1d0
[   31.115500][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   31.115676][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   31.115855][   T12] FS:  0000000000000000(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   31.116115][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.116317][   T12] CR2: 00007f85f7c25000 CR3: 000000003c54d005 CR4: 0000000000771ef0
[   31.116518][   T12] PKRU: 55555554
[   31.116606][   T12] Call Trace:
[   31.116695][   T12]  <TASK>
[   31.116757][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   31.116912][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   31.117059][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   31.117226][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   31.117344][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   31.117502][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   31.117622][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   31.117742][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   31.117861][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   31.117983][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   31.118103][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   31.118388][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   31.118512][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   31.118633][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   31.118752][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   31.118872][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   31.118990][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.119139][   T12]  process_one_work (kernel/workqueue.c:3314)
[   31.119310][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   31.119435][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   31.119559][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   31.119681][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   31.119800][   T12]  kthread (kernel/kthread.c:436)
[   31.119889][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   31.120035][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   31.120200][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   31.120330][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   31.120484][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   31.120602][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   31.120721][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   31.157793][   T12] ------------[ cut here ]------------
| [   31.157940][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   31.158332][   T12] Modules linked in:
| [   31.158701][   T12] Tainted: [W]=WARN
[   31.158790][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.158941][   T12] Workqueue: netns cleanup_net
[   31.159066][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   31.159238][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   31.159672][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   31.159819][   T12] RAX: 00000000ffffffa6 RBX: ff1100000d2b2040 RCX: 1ff4000000018eed
[   31.159995][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d2b20fc
[   31.160179][   T12] RBP: ff1100000e4a4000 R08: 1fe2200001a56421 R09: ff11000001aed1d0
[   31.160360][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   31.160535][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   31.160712][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   31.160918][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.161067][   T12] CR2: 000055cac4457d5c CR3: 000000000a2c9004 CR4: 0000000000771ef0
[   31.161260][   T12] PKRU: 55555554
[   31.161347][   T12] Call Trace:
[   31.161440][   T12]  <TASK>
[   31.161503][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   31.161655][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   31.161813][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   31.161932][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   31.162054][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   31.162178][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   31.162297][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   31.162420][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   31.162538][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   31.162661][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   31.162785][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   31.162902][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   31.163021][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   31.163147][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   31.163263][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.163386][   T12]  process_one_work (kernel/workqueue.c:3314)
[   31.163508][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   31.163624][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   31.163747][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   31.163869][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   31.163985][   T12]  kthread (kernel/kthread.c:436)
[   31.164073][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   31.164225][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   31.164341][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   31.164469][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   31.164616][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   31.164736][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   31.164851][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   31.166995][   T12] ------------[ cut here ]------------
| [   31.167111][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   31.167383][   T12] Modules linked in:
| [   31.167738][   T12] Tainted: [W]=WARN
[   31.167852][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.168003][   T12] Workqueue: netns cleanup_net
[   31.168123][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   31.168281][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   31.168706][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   31.168851][   T12] RAX: 00000000ffffffa6 RBX: ff1100000d2b2900 RCX: 1ff4000000018eed
[   31.169028][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d2b29bc
[   31.169205][   T12] RBP: ff1100000e509000 R08: 1fe2200001a56539 R09: ff11000001aed1d0
[   31.169383][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   31.169556][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   31.169730][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   31.169932][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.170080][   T12] CR2: 000055cac4457d5c CR3: 000000000a2c9004 CR4: 0000000000771ef0
[   31.170266][   T12] PKRU: 55555554
[   31.170353][   T12] Call Trace:
[   31.170444][   T12]  <TASK>
[   31.170508][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   31.170656][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   31.170798][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   31.170915][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   31.171033][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   31.171154][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   31.171272][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   31.171395][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   31.171518][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   31.171633][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   31.171754][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   31.171871][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   31.171988][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   31.172108][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   31.172231][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.172350][   T12]  process_one_work (kernel/workqueue.c:3314)
[   31.172477][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   31.172594][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   31.172717][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   31.172839][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   31.172957][   T12]  kthread (kernel/kthread.c:436)
[   31.173046][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   31.173198][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   31.173315][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   31.173438][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   31.173583][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   31.173701][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   31.173821][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   31.175956][   T12] ------------[ cut here ]------------
| [   31.176074][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   31.176305][   T12] Modules linked in:
| [   31.176663][   T12] Tainted: [W]=WARN
[   31.176750][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.176894][   T12] Workqueue: netns cleanup_net
[   31.177017][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   31.177174][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   31.177596][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   31.177744][   T12] RAX: 00000000ffffffa6 RBX: ff1100000b997a80 RCX: 1ff4000000018eed
[   31.177920][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b997b3c
[   31.178094][   T12] RBP: ff1100000a7c9000 R08: 1fe2200001732f69 R09: ff11000001aed1d0
[   31.178269][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   31.178448][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   31.178624][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   31.178827][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.178973][   T12] CR2: 000055cac4457d5c CR3: 000000000a2c9004 CR4: 0000000000771ef0
[   31.179153][   T12] PKRU: 55555554
[   31.179242][   T12] Call Trace:
[   31.179329][   T12]  <TASK>
[   31.179401][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   31.179553][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   31.179698][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   31.179816][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   31.179932][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   31.180050][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   31.180173][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   31.180295][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   31.180417][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   31.180536][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   31.180655][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   31.180771][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   31.180889][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   31.181007][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   31.181123][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.181251][   T12]  process_one_work (kernel/workqueue.c:3314)
[   31.181376][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   31.181491][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   31.181611][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   31.181733][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   31.181850][   T12]  kthread (kernel/kthread.c:436)
[   31.181957][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   31.182106][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   31.182230][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   31.182348][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   31.182501][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   31.182623][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   31.182740][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   31.184694][   T12] ------------[ cut here ]------------
| [   31.184807][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   31.185032][   T12] Modules linked in:
| [   31.185395][   T12] Tainted: [W]=WARN
[   31.185484][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.185630][   T12] Workqueue: netns cleanup_net
[   31.185750][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   31.185902][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   31.186323][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   31.186475][   T12] RAX: 00000000ffffffa6 RBX: ff1100000b9978c0 RCX: 1ff4000000018eed
[   31.186647][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b99797c
[   31.186822][   T12] RBP: ff1100000f37c000 R08: 1fe2200001732f31 R09: ff11000001aed1d0
[   31.186996][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   31.187174][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   31.187349][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   31.187559][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.187711][   T12] CR2: 000055cac4457d5c CR3: 000000000a2c9004 CR4: 0000000000771ef0
[   31.187887][   T12] PKRU: 55555554
[   31.187975][   T12] Call Trace:
[   31.188063][   T12]  <TASK>
[   31.188125][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   31.188279][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   31.188433][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   31.188550][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   31.188668][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   31.188784][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   31.188901][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   31.189021][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   31.189140][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   31.189262][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   31.189402][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   31.189519][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   31.189635][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   31.189758][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   31.189873][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.189990][   T12]  process_one_work (kernel/workqueue.c:3314)
[   31.190111][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   31.190235][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   31.190366][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   31.190489][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   31.190606][   T12]  kthread (kernel/kthread.c:436)
[   31.190694][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   31.190840][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   31.190958][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   31.191078][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   31.191229][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   31.191346][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   31.191468][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   31.193418][   T12] ------------[ cut here ]------------
| [   31.193531][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   31.193760][   T12] Modules linked in:
| [   31.194114][   T12] Tainted: [W]=WARN
[   31.194212][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.194364][   T12] Workqueue: netns cleanup_net
[   31.194486][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   31.194646][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   31.195069][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   31.195222][   T12] RAX: 00000000ffffffa6 RBX: ff1100000b9971c0 RCX: 1ff4000000018eed
[   31.195401][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b99727c
[   31.195576][   T12] RBP: ff11000005149000 R08: 1fe2200001732e51 R09: ff11000001aed1d0
[   31.195759][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   31.195933][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   31.196106][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   31.196316][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.196468][   T12] CR2: 000055cac4457d5c CR3: 000000000a2c9004 CR4: 0000000000771ef0
[   31.196643][   T12] PKRU: 55555554
[   31.196732][   T12] Call Trace:
[   31.196821][   T12]  <TASK>
[   31.196882][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   31.197032][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   31.197182][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   31.197299][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   31.197517][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   31.197642][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   31.197762][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   31.197956][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   31.198077][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   31.198199][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   31.198318][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   31.198515][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   31.198632][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   31.198751][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   31.198868][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.199057][   T12]  process_one_work (kernel/workqueue.c:3314)
[   31.199185][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   31.199302][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   31.199430][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   31.199628][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   31.199750][   T12]  kthread (kernel/kthread.c:436)
[   31.199837][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   31.199983][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   31.200179][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   31.200298][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   31.200447][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   31.200567][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   31.200757][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   31.221068][  T435] ------------[ cut here ]------------
| [   31.221553][  T435] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/435
| [   31.221825][  T435] Modules linked in:
| [   31.222302][  T435] Tainted: [W]=WARN
[   31.222456][  T435] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.222665][  T435] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   31.222883][  T435] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   31.223412][  T435] RSP: 0018:ffa0000001307a80 EFLAGS: 00010286
[   31.223625][  T435] RAX: 00000000ffffffa6 RBX: ff110000026eb380 RCX: 1ff4000000260f16
[   31.223865][  T435] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000026eb43c
[   31.224107][  T435] RBP: ff1100000f54c000 R08: 1fe22000004dd689 R09: ff1100000ffe0b80
[   31.224366][  T435] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   31.224606][  T435] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f54c000
[   31.224849][  T435] FS:  00007f749caac840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   31.225124][  T435] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.225349][  T435] CR2: 00007f749ccadc20 CR3: 000000000f522003 CR4: 0000000000771ef0
[   31.225602][  T435] PKRU: 55555554
[   31.225747][  T435] Call Trace:
[   31.225892][  T435]  <TASK>
[   31.226007][  T435]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   31.226199][  T435]  ? notifier_call_chain (kernel/notifier.c:85)
[   31.226386][  T435]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   31.226535][  T435]  register_netdevice (net/core/dev.c:11488)
[   31.226716][  T435]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   31.226930][  T435]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   31.227111][  T435]  register_netdev (net/core/dev.c:11552)
[   31.227303][  T435]  loopback_net_init (drivers/net/loopback.c:218)
[   31.227490][  T435]  ops_init (net/core/net_namespace.c:137)
[   31.227639][  T435]  setup_net (net/core/net_namespace.c:446)
[   31.227786][  T435]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   31.227963][  T435]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   31.228156][  T435]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   31.228338][  T435]  copy_net_ns (net/core/net_namespace.c:579)
[   31.228528][  T435]  create_new_namespaces (kernel/nsproxy.c:132)
[   31.228711][  T435]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   31.228891][  T435]  ksys_unshare (kernel/fork.c:3243)
[   31.229072][  T435]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   31.229261][  T435]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   31.229449][  T435]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   31.229630][  T435]  ? __ia32_sys_open (fs/open.c:1374)
[   31.229811][  T435]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   31.229991][  T435]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   31.230184][  T435]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   31.230368][  T435]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   31.230545][  T435]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   31.230724][  T435]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   31.230934][  T435] RIP: 0033:0x7f749cd6ebcb
[   31.231118][  T435] 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
[   31.231650][  T435] RSP: 002b:00007fff3c4dc228 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   31.231895][  T435] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f749cd6ebcb
[   31.232135][  T435] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   31.232401][  T435] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   31.232644][  T435] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fff3c4de450
[   31.232885][  T435] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff3c4de867
| [   31.234849][   T12] ------------[ cut here ]------------
| [   31.234982][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   31.235234][   T12] Modules linked in:
| [   31.235620][   T12] Tainted: [W]=WARN
[   31.235714][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.235869][   T12] Workqueue: netns cleanup_net
[   31.235998][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   31.236165][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   31.236605][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   31.236763][   T12] RAX: 00000000ffffffa6 RBX: ff110000026eb8c0 RCX: 1ff4000000018eaf
[   31.236947][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000026eb97c
[   31.237130][   T12] RBP: ff1100000a4f9000 R08: 1fe22000004dd731 R09: ff11000001aed1d0
[   31.237318][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000041
[   31.237503][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000000c77e0
[   31.237687][   T12] FS:  0000000000000000(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   31.237901][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.238056][   T12] CR2: 00007f85f7c25000 CR3: 000000003c54d005 CR4: 0000000000771ef0
[   31.238251][   T12] PKRU: 55555554
[   31.238344][   T12] Call Trace:
[   31.238439][   T12]  <TASK>
[   31.238505][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   31.238630][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   31.238725][   T12]  netif_close_many (net/core/dev.c:1804)
[   31.238849][   T12]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   31.238972][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   31.239097][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   31.239261][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   31.239424][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   31.239549][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   31.239672][   T12]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   31.239796][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   31.239954][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   31.240081][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   31.240225][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   31.240349][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   31.240477][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   31.240601][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   31.240727][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   31.240850][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   31.240976][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   31.241103][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   31.241231][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   31.241359][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   31.241482][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.241607][   T12]  process_one_work (kernel/workqueue.c:3314)
[   31.241734][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   31.241858][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   31.241988][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   31.242116][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   31.242253][   T12]  kthread (kernel/kthread.c:436)
[   31.242346][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   31.242503][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   31.242626][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   31.242750][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   31.242905][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   31.243028][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   31.243156][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   31.245329][   T12] ------------[ cut here ]------------
| [   31.245455][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   31.245690][   T12] Modules linked in:
| [   31.246048][   T12] Tainted: [W]=WARN
[   31.246138][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.246294][   T12] Workqueue: netns cleanup_net
[   31.246421][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   31.246576][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   31.246996][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   31.247150][   T12] RAX: 00000000ffffffa6 RBX: ff110000026eb000 RCX: 1ff4000000018ed5
[   31.247331][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000026eb0bc
[   31.247515][   T12] RBP: ff1100000a4f9000 R08: 1fe22000004dd619 R09: ff11000001aed1d0
[   31.247692][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   31.247869][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   31.248046][   T12] FS:  0000000000000000(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   31.248257][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.248409][   T12] CR2: 00007f85f7c25000 CR3: 000000003c54d005 CR4: 0000000000771ef0
[   31.248591][   T12] PKRU: 55555554
[   31.248680][   T12] Call Trace:
[   31.248769][   T12]  <TASK>
[   31.248831][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   31.248984][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   31.249133][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   31.249261][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   31.249386][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   31.249507][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   31.249625][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   31.249747][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   31.249867][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   31.249986][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   31.250109][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   31.250234][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   31.250351][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   31.250477][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   31.250600][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.250721][   T12]  process_one_work (kernel/workqueue.c:3314)
[   31.250845][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   31.250963][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   31.251087][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   31.251216][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   31.251338][   T12]  kthread (kernel/kthread.c:436)
[   31.251431][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   31.251583][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   31.251704][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   31.251823][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   31.251973][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   31.252093][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   31.252218][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   31.257216][  T435] ------------[ cut here ]------------
| [   31.257411][  T435] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/435
| [   31.257685][  T435] Modules linked in:
| [   31.258158][  T435] Tainted: [W]=WARN
[   31.258303][  T435] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.258521][  T435] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   31.258742][  T435] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   31.259262][  T435] RSP: 0018:ffa0000001307918 EFLAGS: 00010286
[   31.259480][  T435] RAX: 00000000ffffffa6 RBX: ff1100000d22ec80 RCX: 1ff4000000260ee9
[   31.259723][  T435] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d22ed3c
[   31.259967][  T435] RBP: ff1100000f19c000 R08: 1fe2200001a45da9 R09: ff1100000ffe0b80
[   31.260224][  T435] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   31.260473][  T435] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f19c000
[   31.260720][  T435] FS:  00007f749caac840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   31.261000][  T435] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.261226][  T435] CR2: 00007f749ccadc20 CR3: 000000000f522003 CR4: 0000000000771ef0
[   31.261478][  T435] PKRU: 55555554
[   31.261622][  T435] Call Trace:
[   31.261767][  T435]  <TASK>
[   31.261881][  T435]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   31.262061][  T435]  ? notifier_call_chain (kernel/notifier.c:85)
[   31.262253][  T435]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   31.262406][  T435]  register_netdevice (net/core/dev.c:11488)
[   31.262586][  T435]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   31.262796][  T435]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   31.262977][  T435]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   31.263169][  T435]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   31.263350][  T435]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   31.263538][  T435]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   31.263716][  T435]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   31.263897][  T435]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   31.264078][  T435]  ops_init (net/core/net_namespace.c:137)
[   31.264239][  T435]  setup_net (net/core/net_namespace.c:446)
[   31.264391][  T435]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   31.264569][  T435]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   31.264752][  T435]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   31.264932][  T435]  copy_net_ns (net/core/net_namespace.c:579)
[   31.265111][  T435]  create_new_namespaces (kernel/nsproxy.c:132)
[   31.265306][  T435]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   31.265516][  T435]  ksys_unshare (kernel/fork.c:3243)
[   31.265699][  T435]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   31.265876][  T435]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   31.266056][  T435]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   31.266248][  T435]  ? __ia32_sys_open (fs/open.c:1374)
[   31.266437][  T435]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   31.266615][  T435]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   31.266793][  T435]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   31.266971][  T435]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   31.267161][  T435]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   31.267342][  T435]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   31.267562][  T435] RIP: 0033:0x7f749cd6ebcb
[   31.267745][  T435] 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
[   31.268261][  T435] RSP: 002b:00007fff3c4dc228 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   31.268513][  T435] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f749cd6ebcb
[   31.268753][  T435] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   31.268994][  T435] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   31.269249][  T435] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fff3c4de450
[   31.269500][  T435] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff3c4de867
| [   31.278659][  T435] ------------[ cut here ]------------
| [   31.278836][  T435] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/435
| [   31.279112][  T435] Modules linked in:
| [   31.280185][  T435] Tainted: [W]=WARN
[   31.280397][  T435] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.280668][  T435] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   31.280944][  T435] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   31.281527][  T435] RSP: 0018:ffa00000013078f8 EFLAGS: 00010286
[   31.281794][  T435] RAX: 00000000ffffffa6 RBX: ff1100000d1a2ac0 RCX: 1ff4000000260ee5
[   31.282104][  T435] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d1a2b7c
[   31.282421][  T435] RBP: ff1100000f5c9000 R08: 1fe2200001a34571 R09: ff1100000ffe0b80
[   31.282723][  T435] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   31.283019][  T435] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f5c9000
[   31.283335][  T435] FS:  00007f749caac840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   31.283708][  T435] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.283977][  T435] CR2: 00007f749ccadc20 CR3: 000000000f522003 CR4: 0000000000771ef0
[   31.284287][  T435] PKRU: 55555554
[   31.284492][  T435] Call Trace:
[   31.284693][  T435]  <TASK>
[   31.284866][  T435]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   31.285101][  T435]  ? notifier_call_chain (kernel/notifier.c:85)
[   31.285350][  T435]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   31.285563][  T435]  register_netdevice (net/core/dev.c:11488)
[   31.285797][  T435]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   31.286062][  T435]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   31.286312][  T435]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   31.286570][  T435]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   31.286802][  T435]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   31.286980][  T435]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   31.287172][  T435]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   31.287354][  T435]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   31.287544][  T435]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   31.287729][  T435]  vti_init_net (net/ipv4/ip_vti.c:517)
[   31.287908][  T435]  ops_init (net/core/net_namespace.c:137)
[   31.288061][  T435]  setup_net (net/core/net_namespace.c:446)
[   31.288222][  T435]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   31.288403][  T435]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   31.288583][  T435]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   31.288763][  T435]  copy_net_ns (net/core/net_namespace.c:579)
[   31.288945][  T435]  create_new_namespaces (kernel/nsproxy.c:132)
[   31.289127][  T435]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   31.289322][  T435]  ksys_unshare (kernel/fork.c:3243)
[   31.289506][  T435]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   31.289701][  T435]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   31.289883][  T435]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   31.290063][  T435]  ? __ia32_sys_open (fs/open.c:1374)
[   31.290258][  T435]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   31.290444][  T435]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   31.290625][  T435]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   31.290804][  T435]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   31.290983][  T435]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   31.291177][  T435]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   31.291394][  T435] RIP: 0033:0x7f749cd6ebcb
[   31.291580][  T435] 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
[   31.292097][  T435] RSP: 002b:00007fff3c4dc228 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   31.292364][  T435] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f749cd6ebcb
[   31.292636][  T435] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   31.292881][  T435] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   31.293127][  T435] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fff3c4de450
[   31.293389][  T435] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff3c4de867
| [   31.304597][  T435] ------------[ cut here ]------------
| [   31.304791][  T435] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/435
| [   31.305069][  T435] Modules linked in:
| [   31.305562][  T435] Tainted: [W]=WARN
[   31.305707][  T435] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.305914][  T435] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   31.306131][  T435] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   31.306662][  T435] RSP: 0018:ffa0000001307a78 EFLAGS: 00010286
[   31.306874][  T435] RAX: 00000000ffffffa6 RBX: ff1100000d1a23c0 RCX: 1ff4000000260f15
[   31.307114][  T435] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d1a247c
[   31.307374][  T435] RBP: ff1100000e51c000 R08: 1fe2200001a34491 R09: ff1100000ffe0b80
[   31.307615][  T435] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   31.307858][  T435] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e51c000
[   31.308101][  T435] FS:  00007f749caac840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   31.308395][  T435] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.308607][  T435] CR2: 00007f749ccadc20 CR3: 000000000f522003 CR4: 0000000000771ef0
[   31.308854][  T435] PKRU: 55555554
[   31.308997][  T435] Call Trace:
[   31.309156][  T435]  <TASK>
[   31.309271][  T435]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   31.309456][  T435]  ? notifier_call_chain (kernel/notifier.c:85)
[   31.309635][  T435]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   31.309783][  T435]  register_netdevice (net/core/dev.c:11488)
[   31.309963][  T435]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   31.310187][  T435]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   31.310377][  T435]  register_netdev (net/core/dev.c:11552)
[   31.310558][  T435]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   31.310740][  T435]  ops_init (net/core/net_namespace.c:137)
[   31.310889][  T435]  setup_net (net/core/net_namespace.c:446)
[   31.311035][  T435]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   31.311225][  T435]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   31.311415][  T435]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   31.311595][  T435]  copy_net_ns (net/core/net_namespace.c:579)
[   31.311775][  T435]  create_new_namespaces (kernel/nsproxy.c:132)
[   31.311956][  T435]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   31.312135][  T435]  ksys_unshare (kernel/fork.c:3243)
[   31.312326][  T435]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   31.312512][  T435]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   31.312694][  T435]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   31.313023][  T435]  ? __ia32_sys_open (fs/open.c:1374)
[   31.313216][  T435]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   31.313399][  T435]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   31.313578][  T435]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   31.313756][  T435]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   31.313934][  T435]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   31.314115][  T435]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   31.314341][  T435] RIP: 0033:0x7f749cd6ebcb
[   31.314535][  T435] 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
[   31.315043][  T435] RSP: 002b:00007fff3c4dc228 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   31.315300][  T435] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f749cd6ebcb
[   31.315587][  T435] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   31.315831][  T435] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   31.316071][  T435] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fff3c4de450
[   31.316321][  T435] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff3c4de867
| [   31.320912][  T435] ------------[ cut here ]------------
| [   31.321087][  T435] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/435
| [   31.321384][  T435] Modules linked in:
| [   31.321842][  T435] Tainted: [W]=WARN
[   31.321987][  T435] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.322209][  T435] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   31.322435][  T435] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   31.322941][  T435] RSP: 0018:ffa0000001307a68 EFLAGS: 00010286
[   31.323166][  T435] RAX: 00000000ffffffa6 RBX: ff1100000d2b3380 RCX: 1ff4000000260f13
[   31.323412][  T435] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d2b343c
[   31.323656][  T435] RBP: ff11000008f11000 R08: 1fe2200001a56689 R09: ff1100000ffe0b80
[   31.323896][  T435] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   31.324138][  T435] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008f11000
[   31.324400][  T435] FS:  00007f749caac840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   31.324680][  T435] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.324891][  T435] CR2: 00007f749ccadc20 CR3: 000000000f522003 CR4: 0000000000771ef0
[   31.325135][  T435] PKRU: 55555554
[   31.325293][  T435] Call Trace:
[   31.325445][  T435]  <TASK>
[   31.325559][  T435]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   31.325742][  T435]  ? notifier_call_chain (kernel/notifier.c:85)
[   31.325920][  T435]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   31.326068][  T435]  register_netdevice (net/core/dev.c:11488)
[   31.326260][  T435]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   31.326479][  T435]  register_netdev (net/core/dev.c:11552)
[   31.326657][  T435]  sit_init_net (net/ipv6/sit.c:1860)
[   31.326835][  T435]  ops_init (net/core/net_namespace.c:137)
[   31.326982][  T435]  setup_net (net/core/net_namespace.c:446)
[   31.327132][  T435]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   31.327320][  T435]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   31.327502][  T435]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   31.327683][  T435]  copy_net_ns (net/core/net_namespace.c:579)
[   31.327863][  T435]  create_new_namespaces (kernel/nsproxy.c:132)
[   31.328044][  T435]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   31.328239][  T435]  ksys_unshare (kernel/fork.c:3243)
[   31.328424][  T435]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   31.328601][  T435]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   31.328778][  T435]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   31.328955][  T435]  ? __ia32_sys_open (fs/open.c:1374)
[   31.329135][  T435]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   31.329323][  T435]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   31.329502][  T435]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   31.329682][  T435]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   31.329890][  T435]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   31.330081][  T435]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   31.330303][  T435] RIP: 0033:0x7f749cd6ebcb
[   31.330494][  T435] 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
[   31.331006][  T435] RSP: 002b:00007fff3c4dc228 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   31.331261][  T435] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f749cd6ebcb
[   31.331518][  T435] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   31.331758][  T435] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   31.332001][  T435] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fff3c4de450
[   31.332259][  T435] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff3c4de867
| [   31.337505][  T435] ------------[ cut here ]------------
| [   31.337682][  T435] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/435
| [   31.337953][  T435] Modules linked in:
| [   31.338430][  T435] Tainted: [W]=WARN
[   31.338576][  T435] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.338789][  T435] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   31.339007][  T435] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   31.339533][  T435] RSP: 0018:ffa0000001307a78 EFLAGS: 00010286
[   31.339748][  T435] RAX: 00000000ffffffa6 RBX: ff11000009c31540 RCX: 1ff4000000260f15
[   31.339988][  T435] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009c315fc
[   31.340242][  T435] RBP: ff110000051a1000 R08: 1fe22000013862c1 R09: ff1100000ffe0b80
[   31.340491][  T435] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   31.340734][  T435] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000051a1000
[   31.340979][  T435] FS:  00007f749caac840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   31.341269][  T435] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.341490][  T435] CR2: 00007f749ccadc20 CR3: 000000000f522003 CR4: 0000000000771ef0
[   31.341733][  T435] PKRU: 55555554
[   31.341880][  T435] Call Trace:
[   31.342025][  T435]  <TASK>
[   31.342154][  T435]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   31.342334][  T435]  ? notifier_call_chain (kernel/notifier.c:85)
[   31.342523][  T435]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   31.342671][  T435]  register_netdevice (net/core/dev.c:11488)
[   31.342853][  T435]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   31.343062][  T435]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   31.343261][  T435]  register_netdev (net/core/dev.c:11552)
[   31.343450][  T435]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   31.343630][  T435]  ops_init (net/core/net_namespace.c:137)
[   31.343778][  T435]  setup_net (net/core/net_namespace.c:446)
[   31.343926][  T435]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   31.344103][  T435]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   31.344294][  T435]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   31.344486][  T435]  copy_net_ns (net/core/net_namespace.c:579)
[   31.344666][  T435]  create_new_namespaces (kernel/nsproxy.c:132)
[   31.344847][  T435]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   31.345026][  T435]  ksys_unshare (kernel/fork.c:3243)
[   31.345218][  T435]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   31.345404][  T435]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   31.345582][  T435]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   31.345765][  T435]  ? __ia32_sys_open (fs/open.c:1374)
[   31.345946][  T435]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   31.346124][  T435]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   31.346313][  T435]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   31.346500][  T435]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   31.346677][  T435]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   31.346856][  T435]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   31.347064][  T435] RIP: 0033:0x7f749cd6ebcb
[   31.347260][  T435] 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
[   31.347772][  T435] RSP: 002b:00007fff3c4dc228 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   31.348016][  T435] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f749cd6ebcb
[   31.348272][  T435] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   31.348520][  T435] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   31.348760][  T435] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fff3c4de450
[   31.349002][  T435] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff3c4de867
| [   31.386584][  T436] ------------[ cut here ]------------
| [   31.386749][  T436] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/436
| [   31.386976][  T436] Modules linked in:
| [   31.387350][  T436] Tainted: [W]=WARN
[   31.387454][  T436] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.387616][  T436] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   31.387787][  T436] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   31.388252][  T436] RSP: 0018:ffa0000001317020 EFLAGS: 00010286
[   31.388419][  T436] RAX: 00000000ffffffa6 RBX: ff1100000d1bb1c0 RCX: 1ff4000000262dca
[   31.388612][  T436] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d1bb27c
[   31.388803][  T436] RBP: ff1100000f54c000 R08: 1fe2200001a37651 R09: ff1100000ffe5158
[   31.388997][  T436] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[   31.389194][  T436] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   31.389394][  T436] FS:  00007f82fc485840(0000) GS:ff110000b3c47000(0000) knlGS:0000000000000000
[   31.389621][  T436] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.389784][  T436] CR2: 000000002e437988 CR3: 000000000b23b006 CR4: 0000000000771ef0
[   31.389978][  T436] PKRU: 55555554
[   31.390075][  T436] Call Trace:
[   31.390177][  T436]  <TASK>
[   31.390245][  T436]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   31.390382][  T436]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   31.390482][  T436]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   31.390611][  T436]  __dev_notify_flags (net/core/dev.c:9787)
[   31.390741][  T436]  ? netif_change_name (net/core/dev.c:1495)
[   31.390872][  T436]  ? __dev_change_flags (net/core/dev.c:9752)
[   31.391001][  T436]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   31.391131][  T436]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   31.391268][  T436]  ? 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))
[   31.391406][  T436]  netif_change_flags (net/core/dev.c:9820)
[   31.391537][  T436]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   31.391670][  T436]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   31.391802][  T436]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   31.391933][  T436]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   31.392094][  T436]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   31.392230][  T436]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   31.392365][  T436]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   31.392496][  T436]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   31.392629][  T436]  ? __kernel_text_address (kernel/extable.c:79)
[   31.392760][  T436]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   31.392892][  T436]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   31.393023][  T436]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   31.393161][  T436]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.393295][  T436]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   31.393429][  T436]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.393563][  T436]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.393696][  T436]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   31.393830][  T436]  ? __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)
[   31.393964][  T436]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   31.394098][  T436]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   31.394239][  T436]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   31.394380][  T436]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   31.394519][  T436]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   31.394656][  T436]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   31.394791][  T436]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   31.394927][  T436]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   31.395061][  T436]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   31.395200][  T436]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   31.395336][  T436]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   31.395472][  T436]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   31.395605][  T436]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   31.395738][  T436]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   31.395871][  T436]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   31.396004][  T436]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   31.396135][  T436]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   31.396273][  T436]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   31.396408][  T436]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   31.396545][  T436]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   31.396677][  T436]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   31.396810][  T436]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   31.396944][  T436]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   31.397077][  T436]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   31.397221][  T436]  ? 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))
[   31.397358][  T436]  ? 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))
[   31.397496][  T436]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   31.397631][  T436]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   31.397767][  T436]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   31.397904][  T436]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   31.398039][  T436]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   31.398180][  T436]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   31.398322][  T436]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   31.398461][  T436]  ? copy_msghdr_from_user (net/socket.c:2635)
[   31.398595][  T436]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   31.398763][  T436]  ? move_addr_to_kernel (net/socket.c:258)
[   31.398900][  T436]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   31.399035][  T436]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   31.399174][  T436]  ___sys_sendmsg (net/socket.c:2752)
[   31.399308][  T436]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   31.399479][  T436]  ? copy_msghdr_from_user (net/socket.c:2603)
[   31.399626][  T436]  __sys_sendmsg (net/socket.c:2784)
[   31.399761][  T436]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   31.399895][  T436]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   31.400065][  T436]  ? 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)
[   31.400205][  T436]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.400341][  T436]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   31.400477][  T436]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   31.400611][  T436]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   31.400745][  T436]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   31.400911][  T436] RIP: 0033:0x7f82fc6bf08e
[   31.401047][  T436] 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
[   31.401527][  T436] RSP: 002b:00007fff00a29890 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   31.401727][  T436] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f82fc6bf08e
[   31.401925][  T436] RDX: 0000000000000000 RSI: 00007fff00a29940 RDI: 0000000000000005
[   31.402120][  T436] RBP: 00007fff00a298a0 R08: 0000000000000000 R09: 0000000000000000
[   31.402323][  T436] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ea29
[   31.402526][  T436] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff00a2a010
| [   31.594476][  T445] ------------[ cut here ]------------
| [   31.594695][  T445] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/445
| [   31.594974][  T445] Modules linked in:
| [   31.595459][  T445] Tainted: [W]=WARN
[   31.595605][  T445] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.595816][  T445] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   31.596039][  T445] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   31.596604][  T445] RSP: 0018:ffa0000001397a80 EFLAGS: 00010286
[   31.596820][  T445] RAX: 00000000ffffffa6 RBX: ff11000009c30040 RCX: 1ff4000000272f16
[   31.597061][  T445] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009c300fc
[   31.597318][  T445] RBP: ff1100000e131000 R08: 1fe2200001386021 R09: ff1100000f6b0b80
[   31.597566][  T445] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   31.597811][  T445] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e131000
[   31.598057][  T445] FS:  00007f855e53a840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   31.598366][  T445] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.598579][  T445] CR2: 00007f855e73bc20 CR3: 000000000f72f004 CR4: 0000000000771ef0
[   31.598821][  T445] PKRU: 55555554
[   31.598965][  T445] Call Trace:
[   31.599121][  T445]  <TASK>
[   31.599250][  T445]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   31.599440][  T445]  ? notifier_call_chain (kernel/notifier.c:85)
[   31.599621][  T445]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   31.599771][  T445]  register_netdevice (net/core/dev.c:11488)
[   31.599952][  T445]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   31.600186][  T445]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   31.600400][  T445]  register_netdev (net/core/dev.c:11552)
[   31.600583][  T445]  loopback_net_init (drivers/net/loopback.c:218)
[   31.600764][  T445]  ops_init (net/core/net_namespace.c:137)
[   31.600912][  T445]  setup_net (net/core/net_namespace.c:446)
[   31.601059][  T445]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   31.601249][  T445]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   31.601438][  T445]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   31.601621][  T445]  copy_net_ns (net/core/net_namespace.c:579)
[   31.601822][  T445]  create_new_namespaces (kernel/nsproxy.c:132)
[   31.602006][  T445]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   31.602195][  T445]  ksys_unshare (kernel/fork.c:3243)
[   31.602380][  T445]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   31.602559][  T445]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   31.602738][  T445]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   31.602919][  T445]  ? __ia32_sys_open (fs/open.c:1374)
[   31.603115][  T445]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   31.603306][  T445]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   31.603492][  T445]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   31.603672][  T445]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   31.603853][  T445]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   31.604048][  T445]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   31.604275][  T445] RIP: 0033:0x7f855e7fcbcb
[   31.604472][  T445] 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
[   31.604991][  T445] RSP: 002b:00007ffe44b3bfa8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   31.605250][  T445] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f855e7fcbcb
[   31.605501][  T445] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   31.605758][  T445] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   31.606002][  T445] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe44b3e1d0
[   31.606257][  T445] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe44b3e865
| [   31.610862][  T445] ------------[ cut here ]------------
| [   31.611039][  T445] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/445
| [   31.611329][  T445] Modules linked in:
| [   31.611803][  T445] Tainted: [W]=WARN
[   31.611951][  T445] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.612179][  T445] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   31.612405][  T445] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   31.612917][  T445] RSP: 0018:ffa0000001397918 EFLAGS: 00010286
[   31.613131][  T445] RAX: 00000000ffffffa6 RBX: ff1100000d03fc40 RCX: 1ff4000000272ee9
[   31.613396][  T445] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d03fcfc
[   31.613641][  T445] RBP: ff1100000f7d1000 R08: 1fe2200001a07fa1 R09: ff1100000f6b0b80
[   31.613884][  T445] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   31.614127][  T445] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f7d1000
[   31.614393][  T445] FS:  00007f855e53a840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   31.614672][  T445] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.614884][  T445] CR2: 00007f855e73bc20 CR3: 000000000f72f004 CR4: 0000000000771ef0
[   31.615129][  T445] PKRU: 55555554
[   31.615288][  T445] Call Trace:
[   31.615437][  T445]  <TASK>
[   31.615553][  T445]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   31.615734][  T445]  ? notifier_call_chain (kernel/notifier.c:85)
[   31.615912][  T445]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   31.616060][  T445]  register_netdevice (net/core/dev.c:11488)
[   31.616257][  T445]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   31.616476][  T445]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   31.616660][  T445]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   31.616841][  T445]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   31.617021][  T445]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   31.617216][  T445]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   31.617407][  T445]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   31.617591][  T445]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   31.617776][  T445]  ops_init (net/core/net_namespace.c:137)
[   31.617928][  T445]  setup_net (net/core/net_namespace.c:446)
[   31.618079][  T445]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   31.618270][  T445]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   31.618463][  T445]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   31.618649][  T445]  copy_net_ns (net/core/net_namespace.c:579)
[   31.618832][  T445]  create_new_namespaces (kernel/nsproxy.c:132)
[   31.619016][  T445]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   31.619210][  T445]  ksys_unshare (kernel/fork.c:3243)
[   31.619399][  T445]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   31.619579][  T445]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   31.619758][  T445]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   31.619939][  T445]  ? __ia32_sys_open (fs/open.c:1374)
[   31.620120][  T445]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   31.620312][  T445]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   31.620500][  T445]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   31.620681][  T445]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   31.620860][  T445]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   31.621040][  T445]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   31.621261][  T445] RIP: 0033:0x7f855e7fcbcb
[   31.621458][  T445] 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
[   31.621968][  T445] RSP: 002b:00007ffe44b3bfa8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   31.622225][  T445] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f855e7fcbcb
[   31.622478][  T445] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   31.622722][  T445] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   31.622963][  T445] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe44b3e1d0
[   31.623218][  T445] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe44b3e865
| [   31.629086][  T445] ------------[ cut here ]------------
| [   31.629239][  T445] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/445
| [   31.629480][  T445] Modules linked in:
| [   31.629854][  T445] Tainted: [W]=WARN
[   31.629954][  T445] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.630119][  T445] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   31.630294][  T445] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   31.630769][  T445] RSP: 0018:ffa00000013978f8 EFLAGS: 00010286
[   31.630934][  T445] RAX: 00000000ffffffa6 RBX: ff11000004b3e740 RCX: 1ff4000000272ee5
[   31.631130][  T445] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000004b3e7fc
[   31.631334][  T445] RBP: ff1100000e82c000 R08: 1fe2200000967d01 R09: ff1100000f6b0b80
[   31.631551][  T445] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   31.631747][  T445] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e82c000
[   31.631947][  T445] FS:  00007f855e53a840(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   31.632188][  T445] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.632353][  T445] CR2: 000055caeb759738 CR3: 000000000f72f004 CR4: 0000000000771ef0
[   31.632557][  T445] PKRU: 55555554
[   31.632657][  T445] Call Trace:
[   31.632756][  T445]  <TASK>
[   31.632825][  T445]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   31.632958][  T445]  ? notifier_call_chain (kernel/notifier.c:85)
[   31.633091][  T445]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   31.633197][  T445]  register_netdevice (net/core/dev.c:11488)
[   31.633331][  T445]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   31.633500][  T445]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   31.633633][  T445]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   31.633766][  T445]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   31.633898][  T445]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   31.634034][  T445]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   31.634175][  T445]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   31.634308][  T445]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   31.634444][  T445]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   31.634578][  T445]  vti_init_net (net/ipv4/ip_vti.c:517)
[   31.634709][  T445]  ops_init (net/core/net_namespace.c:137)
[   31.634812][  T445]  setup_net (net/core/net_namespace.c:446)
[   31.634913][  T445]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   31.635046][  T445]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   31.635184][  T445]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   31.635319][  T445]  copy_net_ns (net/core/net_namespace.c:579)
[   31.635456][  T445]  create_new_namespaces (kernel/nsproxy.c:132)
[   31.635590][  T445]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   31.635724][  T445]  ksys_unshare (kernel/fork.c:3243)
[   31.635856][  T445]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   31.635990][  T445]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   31.636123][  T445]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   31.636262][  T445]  ? __ia32_sys_open (fs/open.c:1374)
[   31.636399][  T445]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   31.636533][  T445]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   31.636665][  T445]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   31.636798][  T445]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   31.636931][  T445]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   31.637066][  T445]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   31.637236][  T445] RIP: 0033:0x7f855e7fcbcb
[   31.637377][  T445] 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
[   31.637844][  T445] RSP: 002b:00007ffe44b3bfa8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   31.638044][  T445] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f855e7fcbcb
[   31.638248][  T445] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   31.638447][  T445] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   31.638644][  T445] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe44b3e1d0
[   31.638840][  T445] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe44b3e865
| [   31.647368][  T445] ------------[ cut here ]------------
| [   31.647524][  T445] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/445
| [   31.647754][  T445] Modules linked in:
| [   31.648124][  T445] Tainted: [W]=WARN
[   31.648230][  T445] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.648400][  T445] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   31.648571][  T445] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   31.649039][  T445] RSP: 0018:ffa0000001397a78 EFLAGS: 00010286
[   31.649209][  T445] RAX: 00000000ffffffa6 RBX: ff11000004b3f540 RCX: 1ff4000000272f15
[   31.649413][  T445] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000004b3f5fc
[   31.649639][  T445] RBP: ff1100000a66c000 R08: 1fe2200000967ec1 R09: ff1100000f6b0b80
[   31.649842][  T445] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   31.650038][  T445] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a66c000
[   31.650240][  T445] FS:  00007f855e53a840(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   31.650476][  T445] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.650641][  T445] CR2: 000055caeb759738 CR3: 000000000f72f004 CR4: 0000000000771ef0
[   31.650839][  T445] PKRU: 55555554
[   31.650938][  T445] Call Trace:
[   31.651037][  T445]  <TASK>
[   31.651106][  T445]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   31.651244][  T445]  ? notifier_call_chain (kernel/notifier.c:85)
[   31.651380][  T445]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   31.651480][  T445]  register_netdevice (net/core/dev.c:11488)
[   31.651616][  T445]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   31.651778][  T445]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   31.651911][  T445]  register_netdev (net/core/dev.c:11552)
[   31.652042][  T445]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   31.652180][  T445]  ops_init (net/core/net_namespace.c:137)
[   31.652281][  T445]  setup_net (net/core/net_namespace.c:446)
[   31.652386][  T445]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   31.652516][  T445]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   31.652650][  T445]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   31.652785][  T445]  copy_net_ns (net/core/net_namespace.c:579)
[   31.652919][  T445]  create_new_namespaces (kernel/nsproxy.c:132)
[   31.653055][  T445]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   31.653191][  T445]  ksys_unshare (kernel/fork.c:3243)
[   31.653326][  T445]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   31.653463][  T445]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   31.653597][  T445]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   31.653733][  T445]  ? __ia32_sys_open (fs/open.c:1374)
[   31.653868][  T445]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   31.653999][  T445]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   31.654131][  T445]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   31.654267][  T445]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   31.654405][  T445]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   31.654536][  T445]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   31.654700][  T445] RIP: 0033:0x7f855e7fcbcb
[   31.654837][  T445] 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
[   31.655311][  T445] RSP: 002b:00007ffe44b3bfa8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   31.655515][  T445] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f855e7fcbcb
[   31.655714][  T445] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   31.655909][  T445] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   31.656107][  T445] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe44b3e1d0
[   31.656311][  T445] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe44b3e865
| [   31.660444][  T445] ------------[ cut here ]------------
| [   31.660593][  T445] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/445
| [   31.660820][  T445] Modules linked in:
| [   31.661216][  T445] Tainted: [W]=WARN
[   31.661316][  T445] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.661485][  T445] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   31.661656][  T445] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   31.662123][  T445] RSP: 0018:ffa0000001397a68 EFLAGS: 00010286
[   31.662295][  T445] RAX: 00000000ffffffa6 RBX: ff11000008d2a3c0 RCX: 1ff4000000272f13
[   31.662495][  T445] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000008d2a47c
[   31.662691][  T445] RBP: ff11000008b81000 R08: 1fe22000011a5491 R09: ff1100000f6b0b80
[   31.662887][  T445] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   31.663082][  T445] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008b81000
[   31.663284][  T445] FS:  00007f855e53a840(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   31.663517][  T445] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.663682][  T445] CR2: 000055caeb759738 CR3: 000000000f72f004 CR4: 0000000000771ef0
[   31.663880][  T445] PKRU: 55555554
[   31.663977][  T445] Call Trace:
[   31.664075][  T445]  <TASK>
[   31.664147][  T445]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   31.664277][  T445]  ? notifier_call_chain (kernel/notifier.c:85)
[   31.664415][  T445]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   31.664515][  T445]  register_netdevice (net/core/dev.c:11488)
[   31.664676][  T445]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   31.664846][  T445]  register_netdev (net/core/dev.c:11552)
[   31.664978][  T445]  sit_init_net (net/ipv6/sit.c:1860)
[   31.665112][  T445]  ops_init (net/core/net_namespace.c:137)
[   31.665224][  T445]  setup_net (net/core/net_namespace.c:446)
[   31.665323][  T445]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   31.665459][  T445]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   31.665591][  T445]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   31.665726][  T445]  copy_net_ns (net/core/net_namespace.c:579)
[   31.665858][  T445]  create_new_namespaces (kernel/nsproxy.c:132)
[   31.665993][  T445]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   31.666125][  T445]  ksys_unshare (kernel/fork.c:3243)
[   31.666262][  T445]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   31.666399][  T445]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   31.666545][  T445]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   31.666679][  T445]  ? __ia32_sys_open (fs/open.c:1374)
[   31.666812][  T445]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   31.666945][  T445]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   31.667076][  T445]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   31.667211][  T445]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   31.667342][  T445]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   31.667481][  T445]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   31.667644][  T445] RIP: 0033:0x7f855e7fcbcb
[   31.667781][  T445] 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
[   31.668258][  T445] RSP: 002b:00007ffe44b3bfa8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   31.668459][  T445] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f855e7fcbcb
[   31.668656][  T445] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   31.668852][  T445] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   31.669049][  T445] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe44b3e1d0
[   31.669250][  T445] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe44b3e865
| [   31.673964][  T445] ------------[ cut here ]------------
| [   31.674109][  T445] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/445
| [   31.674351][  T445] Modules linked in:
| [   31.674725][  T445] Tainted: [W]=WARN
[   31.674826][  T445] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.674992][  T445] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   31.675172][  T445] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   31.675645][  T445] RSP: 0018:ffa0000001397a78 EFLAGS: 00010286
[   31.675814][  T445] RAX: 00000000ffffffa6 RBX: ff11000010380e40 RCX: 1ff4000000272f15
[   31.676010][  T445] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000010380efc
[   31.676211][  T445] RBP: ff1100000ffcc000 R08: 1fe22000020701e1 R09: ff1100000f6b0b80
[   31.676417][  T445] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   31.676614][  T445] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000ffcc000
[   31.676811][  T445] FS:  00007f855e53a840(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   31.677041][  T445] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.677211][  T445] CR2: 000055caeb759738 CR3: 000000000f72f004 CR4: 0000000000771ef0
[   31.677420][  T445] PKRU: 55555554
[   31.677519][  T445] Call Trace:
[   31.677619][  T445]  <TASK>
[   31.677688][  T445]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   31.677822][  T445]  ? notifier_call_chain (kernel/notifier.c:85)
[   31.677955][  T445]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   31.678057][  T445]  register_netdevice (net/core/dev.c:11488)
[   31.678194][  T445]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   31.678363][  T445]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   31.678498][  T445]  register_netdev (net/core/dev.c:11552)
[   31.678630][  T445]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   31.678763][  T445]  ops_init (net/core/net_namespace.c:137)
[   31.678867][  T445]  setup_net (net/core/net_namespace.c:446)
[   31.678968][  T445]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   31.679101][  T445]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   31.679240][  T445]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   31.679379][  T445]  copy_net_ns (net/core/net_namespace.c:579)
[   31.679514][  T445]  create_new_namespaces (kernel/nsproxy.c:132)
[   31.679649][  T445]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   31.679783][  T445]  ksys_unshare (kernel/fork.c:3243)
[   31.679916][  T445]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   31.680048][  T445]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   31.680187][  T445]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   31.680323][  T445]  ? __ia32_sys_open (fs/open.c:1374)
[   31.680464][  T445]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   31.680597][  T445]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   31.680729][  T445]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   31.680862][  T445]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   31.680994][  T445]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   31.681126][  T445]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   31.681298][  T445] RIP: 0033:0x7f855e7fcbcb
[   31.681441][  T445] 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
[   31.681914][  T445] RSP: 002b:00007ffe44b3bfa8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   31.682112][  T445] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f855e7fcbcb
[   31.682317][  T445] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   31.682520][  T445] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   31.682717][  T445] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe44b3e1d0
[   31.682913][  T445] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe44b3e865
| [   31.709999][  T446] ------------[ cut here ]------------
| [   31.710783][  T446] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/446
| [   31.711015][  T446] Modules linked in:
| [   31.711402][  T446] Tainted: [W]=WARN
[   31.711504][  T446] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.711671][  T446] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   31.711843][  T446] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   31.712319][  T446] RSP: 0018:ffa0000001387020 EFLAGS: 00010286
[   31.712490][  T446] RAX: 00000000ffffffa6 RBX: ff11000009afeac0 RCX: 1ff4000000270dca
[   31.712685][  T446] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009afeb7c
[   31.712879][  T446] RBP: ff1100000e131000 R08: 1fe220000135fd71 R09: ff1100000f6b5158
[   31.713074][  T446] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[   31.713277][  T446] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   31.713479][  T446] FS:  00007f020e733840(0000) GS:ff110000b3c47000(0000) knlGS:0000000000000000
[   31.713708][  T446] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.713872][  T446] CR2: 0000000023c84988 CR3: 000000000e90f006 CR4: 0000000000771ef0
[   31.714071][  T446] PKRU: 55555554
[   31.714174][  T446] Call Trace:
[   31.714272][  T446]  <TASK>
[   31.714340][  T446]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   31.714497][  T446]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   31.714596][  T446]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   31.714728][  T446]  __dev_notify_flags (net/core/dev.c:9787)
[   31.714861][  T446]  ? netif_change_name (net/core/dev.c:1495)
[   31.714992][  T446]  ? __dev_change_flags (net/core/dev.c:9752)
[   31.715124][  T446]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   31.715261][  T446]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   31.715399][  T446]  ? 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))
[   31.715533][  T446]  netif_change_flags (net/core/dev.c:9820)
[   31.715664][  T446]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   31.715797][  T446]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   31.715932][  T446]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   31.716064][  T446]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   31.716238][  T446]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   31.716373][  T446]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   31.716506][  T446]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   31.716639][  T446]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   31.716775][  T446]  ? __kernel_text_address (kernel/extable.c:79)
[   31.716909][  T446]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   31.717043][  T446]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   31.717180][  T446]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   31.717313][  T446]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.717457][  T446]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   31.717587][  T446]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.717717][  T446]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.717850][  T446]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   31.717983][  T446]  ? __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)
[   31.718116][  T446]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   31.718252][  T446]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   31.718389][  T446]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   31.718523][  T446]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   31.718657][  T446]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   31.718793][  T446]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   31.718926][  T446]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   31.719058][  T446]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   31.719193][  T446]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   31.719323][  T446]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   31.719462][  T446]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   31.719594][  T446]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   31.719725][  T446]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   31.719856][  T446]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   31.719990][  T446]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   31.720123][  T446]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   31.720261][  T446]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   31.720398][  T446]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   31.720528][  T446]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   31.720661][  T446]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   31.720790][  T446]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   31.720924][  T446]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   31.721058][  T446]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   31.721194][  T446]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   31.721330][  T446]  ? 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))
[   31.721465][  T446]  ? 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))
[   31.721599][  T446]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   31.721732][  T446]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   31.721865][  T446]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   31.721999][  T446]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   31.722133][  T446]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   31.722272][  T446]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   31.722408][  T446]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   31.722541][  T446]  ? copy_msghdr_from_user (net/socket.c:2635)
[   31.722673][  T446]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   31.722836][  T446]  ? move_addr_to_kernel (net/socket.c:258)
[   31.722969][  T446]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   31.723100][  T446]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   31.723239][  T446]  ___sys_sendmsg (net/socket.c:2752)
[   31.723373][  T446]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   31.723539][  T446]  ? copy_msghdr_from_user (net/socket.c:2603)
[   31.723685][  T446]  __sys_sendmsg (net/socket.c:2784)
[   31.723817][  T446]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   31.723949][  T446]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   31.724114][  T446]  ? 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)
[   31.724251][  T446]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.724389][  T446]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   31.724523][  T446]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   31.724655][  T446]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   31.724790][  T446]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   31.724957][  T446] RIP: 0033:0x7f020e96d08e
[   31.725098][  T446] 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
[   31.725575][  T446] RSP: 002b:00007ffdc3453b10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   31.725775][  T446] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f020e96d08e
[   31.725975][  T446] RDX: 0000000000000000 RSI: 00007ffdc3453bc0 RDI: 0000000000000005
[   31.726178][  T446] RBP: 00007ffdc3453b20 R08: 0000000000000000 R09: 0000000000000000
[   31.726380][  T446] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ea29
[   31.726575][  T446] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffdc3454290
| [   31.837750][  T449] ------------[ cut here ]------------
| [   31.837927][  T449] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/449
| [   31.838176][  T449] Modules linked in:
| [   31.838570][  T449] Tainted: [W]=WARN
[   31.838671][  T449] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.838867][  T449] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   31.839052][  T449] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   31.839554][  T449] RSP: 0018:ffa00000013c6e30 EFLAGS: 00010286
[   31.839729][  T449] RAX: 00000000ffffffa6 RBX: ff110000099371c0 RCX: 1ff4000000278d8c
[   31.839937][  T449] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000993727c
[   31.840149][  T449] RBP: ff110000102c4000 R08: 1fe2200001326e51 R09: ff1100000f060b80
[   31.840362][  T449] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   31.840571][  T449] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000b89ea84
[   31.840785][  T449] FS:  00007f4c1fbe4840(0000) GS:ff110000b3c47000(0000) knlGS:0000000000000000
[   31.841031][  T449] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.841212][  T449] CR2: 00000000004eb188 CR3: 0000000004f17002 CR4: 0000000000771ef0
[   31.841428][  T449] PKRU: 55555554
[   31.841533][  T449] Call Trace:
[   31.841638][  T449]  <TASK>
[   31.841711][  T449]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   31.841853][  T449]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   31.841957][  T449]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[   31.842131][  T449]  __dev_notify_flags (net/core/dev.c:9787)
[   31.842278][  T449]  ? netif_change_name (net/core/dev.c:1495)
[   31.842420][  T449]  ? rtnl_newlink (net/core/rtnetlink.c:4150)
[   31.842560][  T449]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   31.842699][  T449]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   31.842840][  T449]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[   31.842980][  T449]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   31.843120][  T449]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   31.843264][  T449]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   31.843406][  T449]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   31.843546][  T449]  ? queue_delayed_work_on (kernel/workqueue.c:2616 (discriminator 6))
[   31.843692][  T449]  veth_newlink (drivers/net/veth.c:1871)
[   31.843834][  T449]  ? veth_poll_controller (drivers/net/veth.c:1470)
[   31.843972][  T449]  ? kasan_save_stack (mm/kasan/common.c:57)
[   31.844112][  T449]  ? kasan_save_track (mm/kasan/common.c:78)
[   31.844255][  T449]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   31.844414][  T449]  ? __kvmalloc_node_noprof (mm/slub.c:5296 mm/slub.c:6832)
[   31.844555][  T449]  ? alloc_netdev_mqs (net/core/dev.c:12129 (discriminator 7))
[   31.844697][  T449]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   31.844836][  T449]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   31.844976][  T449]  ? rtnl_create_link (net/core/rtnetlink.c:3720)
[   31.845117][  T449]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   31.845260][  T449]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   31.845405][  T449]  ? __dev_get_by_name (net/core/dev.c:883)
[   31.845568][  T449]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   31.845720][  T449]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   31.845865][  T449]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   31.846009][  T449]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   31.846153][  T449]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   31.846294][  T449]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   31.846438][  T449]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   31.846577][  T449]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   31.846721][  T449]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   31.846864][  T449]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   31.847004][  T449]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   31.847148][  T449]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   31.847290][  T449]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   31.847433][  T449]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   31.847579][  T449]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   31.847713][  T449]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   31.847849][  T449]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   31.847994][  T449]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   31.848135][  T449]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   31.848282][  T449]  ? 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))
[   31.848426][  T449]  ? 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))
[   31.848567][  T449]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   31.848708][  T449]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   31.848850][  T449]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   31.848994][  T449]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   31.849138][  T449]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   31.849286][  T449]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   31.849435][  T449]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   31.849576][  T449]  ? copy_msghdr_from_user (net/socket.c:2635)
[   31.849717][  T449]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   31.849890][  T449]  ? move_addr_to_kernel (net/socket.c:258)
[   31.850033][  T449]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   31.850179][  T449]  ? rcu_read_unlock (./include/linux/rcupdate.h:867 (discriminator 5))
[   31.850321][  T449]  ___sys_sendmsg (net/socket.c:2752)
[   31.850466][  T449]  ? wp_page_copy (./include/linux/pgtable.h:117 mm/memory.c:3976)
[   31.850607][  T449]  ? copy_msghdr_from_user (net/socket.c:2603)
[   31.850752][  T449]  ? do_wp_page (./include/linux/pgtable.h:117 mm/memory.c:4331)
[   31.850900][  T449]  ? 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))
[   31.851042][  T449]  __sys_sendmsg (net/socket.c:2784)
[   31.851189][  T449]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   31.851334][  T449]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.851476][  T449]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.851616][  T449]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   31.851755][  T449]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   31.851896][  T449]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   31.852037][  T449]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   31.852216][  T449] RIP: 0033:0x7f4c1fe1e08e
[   31.852369][  T449] 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
[   31.852868][  T449] RSP: 002b:00007ffd5bd27a90 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   31.853081][  T449] RAX: ffffffffffffffda RBX: 00007ffd5bd28240 RCX: 00007f4c1fe1e08e
[   31.853294][  T449] RDX: 0000000000000000 RSI: 00007ffd5bd27b40 RDI: 0000000000000005
[   31.853506][  T449] RBP: 00007ffd5bd27aa0 R08: 0000000000000000 R09: 0000000000000000
[   31.853715][  T449] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ea2a
[   31.853925][  T449] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd5bd28218
| [   31.868012][  T449] ------------[ cut here ]------------
| [   31.868807][  T449] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/449
| [   31.869056][  T449] Modules linked in:
| [   31.869510][  T449] Tainted: [W]=WARN
[   31.869615][  T449] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.869847][  T449] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   31.870030][  T449] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   31.870586][  T449] RSP: 0018:ffa00000013c71b0 EFLAGS: 00010286
[   31.870762][  T449] RAX: 00000000ffffffa6 RBX: ff1100000a2e1c40 RCX: 1ff4000000278dfc
[   31.870968][  T449] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a2e1cfc
[   31.871231][  T449] RBP: ff1100000f469000 R08: 1fe220000145c3a1 R09: ff1100000f060b80
[   31.871443][  T449] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   31.871649][  T449] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffb6403b20
[   31.871858][  T449] FS:  00007f4c1fbe4840(0000) GS:ff110000b3c47000(0000) knlGS:0000000000000000
[   31.872104][  T449] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.872334][  T449] CR2: 00000000004eb188 CR3: 0000000004f17002 CR4: 0000000000771ef0
[   31.872544][  T449] PKRU: 55555554
[   31.872651][  T449] Call Trace:
[   31.872756][  T449]  <TASK>
[   31.872828][  T449]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   31.872969][  T449]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   31.873075][  T449]  __dev_notify_flags (net/core/dev.c:9787)
[   31.873273][  T449]  ? netif_change_name (net/core/dev.c:1495)
[   31.873422][  T449]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   31.873562][  T449]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   31.873703][  T449]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   31.873843][  T449]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   31.873984][  T449]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   31.874124][  T449]  ? __dev_get_by_name (net/core/dev.c:883)
[   31.874319][  T449]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   31.874470][  T449]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   31.874613][  T449]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   31.874755][  T449]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   31.874894][  T449]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   31.875034][  T449]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   31.875230][  T449]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   31.875370][  T449]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   31.875528][  T449]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   31.875668][  T449]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   31.875807][  T449]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   31.875947][  T449]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   31.876086][  T449]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   31.876279][  T449]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   31.876424][  T449]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   31.876560][  T449]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   31.876699][  T449]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   31.876840][  T449]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   31.876978][  T449]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   31.877120][  T449]  ? 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))
[   31.877315][  T449]  ? 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))
[   31.877462][  T449]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   31.877602][  T449]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   31.877742][  T449]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   31.877883][  T449]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   31.878024][  T449]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   31.878223][  T449]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   31.878370][  T449]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   31.878510][  T449]  ? copy_msghdr_from_user (net/socket.c:2635)
[   31.878648][  T449]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   31.878821][  T449]  ? move_addr_to_kernel (net/socket.c:258)
[   31.878960][  T449]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   31.879102][  T449]  ? rcu_read_unlock (./include/linux/rcupdate.h:867 (discriminator 5))
[   31.879298][  T449]  ___sys_sendmsg (net/socket.c:2752)
[   31.879440][  T449]  ? wp_page_copy (./include/linux/pgtable.h:117 mm/memory.c:3976)
[   31.879580][  T449]  ? copy_msghdr_from_user (net/socket.c:2603)
[   31.879724][  T449]  ? do_wp_page (./include/linux/pgtable.h:117 mm/memory.c:4331)
[   31.879869][  T449]  ? 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))
[   31.880012][  T449]  __sys_sendmsg (net/socket.c:2784)
[   31.880208][  T449]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   31.880351][  T449]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.880495][  T449]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.880635][  T449]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   31.880774][  T449]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   31.880913][  T449]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   31.881052][  T449]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   31.881281][  T449] RIP: 0033:0x7f4c1fe1e08e
[   31.881432][  T449] 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
[   31.881925][  T449] RSP: 002b:00007ffd5bd27a90 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   31.882134][  T449] RAX: ffffffffffffffda RBX: 00007ffd5bd28240 RCX: 00007f4c1fe1e08e
[   31.882404][  T449] RDX: 0000000000000000 RSI: 00007ffd5bd27b40 RDI: 0000000000000005
[   31.882611][  T449] RBP: 00007ffd5bd27aa0 R08: 0000000000000000 R09: 0000000000000000
[   31.882818][  T449] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ea2a
[   31.883025][  T449] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd5bd28218
| [   32.182086][  T458] ------------[ cut here ]------------
| [   32.182302][  T458] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/458
| [   32.182588][  T458] Modules linked in:
| [   32.183076][  T458] Tainted: [W]=WARN
[   32.183233][  T458] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.183453][  T458] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.183670][  T458] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   32.184211][  T458] RSP: 0018:ffa0000001447020 EFLAGS: 00010286
[   32.184430][  T458] RAX: 00000000ffffffa6 RBX: ff1100000ff203c0 RCX: 1ff4000000288dca
[   32.184689][  T458] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ff2047c
[   32.184930][  T458] RBP: ff1100000f469000 R08: 1fe2200001fe4091 R09: ff1100000f272e58
[   32.185181][  T458] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[   32.185429][  T458] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   32.185674][  T458] FS:  00007f5087052840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   32.185949][  T458] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.186172][  T458] CR2: 00007f50873221a0 CR3: 000000000f2e7005 CR4: 0000000000771ef0
[   32.186423][  T458] PKRU: 55555554
[   32.186567][  T458] Call Trace:
[   32.186711][  T458]  <TASK>
[   32.186826][  T458]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   32.187006][  T458]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   32.187165][  T458]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   32.187345][  T458]  __dev_notify_flags (net/core/dev.c:9787)
[   32.187532][  T458]  ? netif_change_name (net/core/dev.c:1495)
[   32.187711][  T458]  ? __dev_change_flags (net/core/dev.c:9752)
[   32.187890][  T458]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   32.188068][  T458]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.188259][  T458]  ? 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))
[   32.188445][  T458]  netif_change_flags (net/core/dev.c:9820)
[   32.188623][  T458]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   32.188801][  T458]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   32.188982][  T458]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   32.189174][  T458]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   32.189389][  T458]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   32.189567][  T458]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   32.189744][  T458]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   32.189923][  T458]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   32.190107][  T458]  ? __kernel_text_address (kernel/extable.c:79)
[   32.190294][  T458]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   32.190482][  T458]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.190659][  T458]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   32.190837][  T458]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.191015][  T458]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   32.191226][  T458]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.191420][  T458]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.191600][  T458]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   32.191785][  T458]  ? __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)
[   32.191966][  T458]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   32.192156][  T458]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   32.192335][  T458]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   32.192549][  T458]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   32.192730][  T458]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   32.192911][  T458]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.193085][  T458]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   32.193278][  T458]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   32.193463][  T458]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   32.193641][  T458]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.193822][  T458]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.193997][  T458]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   32.194188][  T458]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   32.194373][  T458]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.194553][  T458]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   32.194733][  T458]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   32.194912][  T458]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   32.195089][  T458]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   32.195281][  T458]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   32.195467][  T458]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.195647][  T458]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   32.195824][  T458]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   32.196000][  T458]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   32.196189][  T458]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   32.196404][  T458]  ? 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))
[   32.196583][  T458]  ? 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))
[   32.196766][  T458]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   32.196947][  T458]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   32.197126][  T458]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   32.197315][  T458]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   32.197502][  T458]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   32.197680][  T458]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   32.197858][  T458]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   32.198035][  T458]  ? copy_msghdr_from_user (net/socket.c:2635)
[   32.198223][  T458]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   32.198437][  T458]  ? move_addr_to_kernel (net/socket.c:258)
[   32.198618][  T458]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   32.198795][  T458]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   32.198979][  T458]  ___sys_sendmsg (net/socket.c:2752)
[   32.199173][  T458]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   32.199388][  T458]  ? copy_msghdr_from_user (net/socket.c:2603)
[   32.199576][  T458]  __sys_sendmsg (net/socket.c:2784)
[   32.199756][  T458]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   32.199932][  T458]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   32.200158][  T458]  ? 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)
[   32.200336][  T458]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.200527][  T458]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   32.200709][  T458]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   32.200885][  T458]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   32.201077][  T458]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   32.201300][  T458] RIP: 0033:0x7f508728c08e
[   32.201492][  T458] 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
[   32.201996][  T458] RSP: 002b:00007fff736a3520 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   32.202265][  T458] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f508728c08e
[   32.202512][  T458] RDX: 0000000000000000 RSI: 00007fff736a35d0 RDI: 0000000000000005
[   32.202752][  T458] RBP: 00007fff736a3530 R08: 0000000000000000 R09: 0000000000000000
[   32.202991][  T458] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ea2a
[   32.203248][  T458] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff736a3ca8
| [   32.227181][  T459] ------------[ cut here ]------------
| [   32.227343][  T459] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/459
| [   32.227579][  T459] Modules linked in:
| [   32.227952][  T459] Tainted: [W]=WARN
[   32.228051][  T459] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.228218][  T459] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.228391][  T459] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   32.228851][  T459] RSP: 0018:ffa0000001457020 EFLAGS: 00010286
[   32.229012][  T459] RAX: 00000000ffffffa6 RBX: ff1100000a2e0900 RCX: 1ff400000028adca
[   32.229208][  T459] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a2e09bc
[   32.229403][  T459] RBP: ff110000102c4000 R08: 1fe220000145c139 R09: ff1100000f275158
[   32.229594][  T459] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[   32.229785][  T459] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   32.229977][  T459] FS:  00007f27be4b7840(0000) GS:ff110000b3c47000(0000) knlGS:0000000000000000
[   32.230206][  T459] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.230373][  T459] CR2: 0000000030195988 CR3: 000000000fdb4005 CR4: 0000000000771ef0
[   32.230592][  T459] PKRU: 55555554
[   32.230690][  T459] Call Trace:
[   32.230788][  T459]  <TASK>
[   32.230856][  T459]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   32.230987][  T459]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   32.231085][  T459]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   32.231218][  T459]  __dev_notify_flags (net/core/dev.c:9787)
[   32.231350][  T459]  ? netif_change_name (net/core/dev.c:1495)
[   32.231485][  T459]  ? __dev_change_flags (net/core/dev.c:9752)
[   32.231624][  T459]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   32.231751][  T459]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.231879][  T459]  ? 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))
[   32.232009][  T459]  netif_change_flags (net/core/dev.c:9820)
[   32.232140][  T459]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   32.232274][  T459]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   32.232410][  T459]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   32.232539][  T459]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   32.232698][  T459]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   32.232827][  T459]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   32.232956][  T459]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   32.233085][  T459]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   32.233298][  T459]  ? __kernel_text_address (kernel/extable.c:79)
[   32.233508][  T459]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   32.233637][  T459]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.233764][  T459]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   32.233895][  T459]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.234023][  T459]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   32.234237][  T459]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.234369][  T459]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.234498][  T459]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   32.234630][  T459]  ? __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)
[   32.234760][  T459]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   32.234889][  T459]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   32.235020][  T459]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   32.235236][  T459]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   32.235375][  T459]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   32.235505][  T459]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.235633][  T459]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   32.235763][  T459]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   32.235890][  T459]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   32.236019][  T459]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.236236][  T459]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.236371][  T459]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   32.236501][  T459]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   32.236633][  T459]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.236765][  T459]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   32.236896][  T459]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   32.237024][  T459]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   32.237226][  T459]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   32.237356][  T459]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   32.237490][  T459]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.237618][  T459]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   32.237747][  T459]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   32.237877][  T459]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   32.238385][  T459]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   32.238518][  T459]  ? 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))
[   32.238647][  T459]  ? 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))
[   32.238778][  T459]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   32.238910][  T459]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   32.239039][  T459]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   32.239224][  T459]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   32.239354][  T459]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   32.239489][  T459]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   32.239619][  T459]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   32.239749][  T459]  ? copy_msghdr_from_user (net/socket.c:2635)
[   32.239879][  T459]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   32.240038][  T459]  ? move_addr_to_kernel (net/socket.c:258)
[   32.240223][  T459]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   32.240352][  T459]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   32.240487][  T459]  ___sys_sendmsg (net/socket.c:2752)
[   32.240614][  T459]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   32.240773][  T459]  ? copy_msghdr_from_user (net/socket.c:2603)
[   32.240916][  T459]  __sys_sendmsg (net/socket.c:2784)
[   32.241046][  T459]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   32.241228][  T459]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   32.241395][  T459]  ? 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)
[   32.241524][  T459]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.241657][  T459]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   32.241786][  T459]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   32.241914][  T459]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   32.242045][  T459]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   32.242226][  T459] RIP: 0033:0x7f27be6f108e
[   32.242366][  T459] 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
[   32.242826][  T459] RSP: 002b:00007ffffa6005b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   32.243022][  T459] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f27be6f108e
[   32.243219][  T459] RDX: 0000000000000000 RSI: 00007ffffa600660 RDI: 0000000000000005
[   32.243416][  T459] RBP: 00007ffffa6005c0 R08: 0000000000000000 R09: 0000000000000000
[   32.243609][  T459] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ea2a
[   32.243804][  T459] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffffa600d38
| [   32.245962][   T72] ------------[ cut here ]------------
| [   32.246097][   T72] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/72
| [   32.246341][   T72] Modules linked in:
| [   32.246715][   T72] Tainted: [W]=WARN
[   32.246805][   T72] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.246959][   T72] Workqueue: events_unbound linkwatch_event
[   32.247114][   T72] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.247273][   T72] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   32.247703][   T72] RSP: 0018:ffa00000004d79e0 EFLAGS: 00010286
[   32.247863][   T72] RAX: 00000000ffffffa6 RBX: ff1100000b1b51c0 RCX: 1ff400000009af02
[   32.248044][   T72] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b1b527c
[   32.248283][   T72] RBP: ff1100000f469000 R08: 1fe2200001636a51 R09: ff1100000976d1a8
[   32.248475][   T72] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
[   32.248658][   T72] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   32.248838][   T72] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   32.249048][   T72] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.249204][   T72] CR2: 000055cac4457d5c CR3: 000000000a2c9001 CR4: 0000000000771ef0
[   32.249391][   T72] PKRU: 55555554
[   32.249480][   T72] Call Trace:
[   32.249574][   T72]  <TASK>
[   32.249636][   T72]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   32.249756][   T72]  ? notifier_call_chain (kernel/notifier.c:85)
[   32.249880][   T72]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   32.249975][   T72]  netif_state_change (net/core/dev.c:1605)
[   32.250096][   T72]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[   32.250251][   T72]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[   32.250378][   T72]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   32.250497][   T72]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   32.250619][   T72]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   32.250738][   T72]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   32.250857][   T72]  process_one_work (kernel/workqueue.c:3314)
[   32.250983][   T72]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   32.251101][   T72]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.251231][   T72]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   32.251349][   T72]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   32.251470][   T72]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   32.251591][   T72]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   32.251709][   T72]  kthread (kernel/kthread.c:436)
[   32.251799][   T72]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   32.252025][   T72]  ? kthread_affine_node (kernel/kthread.c:378)
[   32.252154][   T72]  ret_from_fork (arch/x86/kernel/process.c:158)
[   32.252279][   T72]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   32.252507][   T72]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   32.253789][   T72]  ? kthread_affine_node (kernel/kthread.c:378)
[   32.253911][   T72]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   33.162681][   T36] ------------[ cut here ]------------
| [   33.162906][   T36] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/36
| [   33.163176][   T36] Modules linked in:
| [   33.163601][   T36] Tainted: [W]=WARN
[   33.163694][   T36] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   33.163848][   T36] Workqueue: events_unbound linkwatch_event
[   33.164006][   T36] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   33.164173][   T36] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   33.164610][   T36] RSP: 0018:ffa000000028f9e0 EFLAGS: 00010286
[   33.164764][   T36] RAX: 00000000ffffffa6 RBX: ff1100000b1b4ac0 RCX: 1ff4000000051f02
[   33.164952][   T36] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b1b4b7c
[   33.165136][   T36] RBP: ff110000102c4000 R08: 1fe2200001636971 R09: ff11000001d751a8
[   33.165355][   T36] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
[   33.165551][   T36] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   33.165740][   T36] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   33.165959][   T36] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   33.166121][   T36] CR2: 00007f9670657808 CR3: 000000003c54d004 CR4: 0000000000771ef0
[   33.166322][   T36] PKRU: 55555554
[   33.166424][   T36] Call Trace:
[   33.166521][   T36]  <TASK>
[   33.166592][   T36]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   33.166722][   T36]  ? notifier_call_chain (kernel/notifier.c:85)
[   33.166850][   T36]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   33.166951][   T36]  netif_state_change (net/core/dev.c:1605)
[   33.167076][   T36]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[   33.167263][   T36]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[   33.167395][   T36]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   33.167529][   T36]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   33.167660][   T36]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   33.167787][   T36]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   33.167915][   T36]  process_one_work (kernel/workqueue.c:3314)
[   33.168047][   T36]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   33.168180][   T36]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   33.168314][   T36]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   33.168450][   T36]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   33.168578][   T36]  kthread (kernel/kthread.c:436)
[   33.168674][   T36]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   33.168832][   T36]  ? kthread_affine_node (kernel/kthread.c:378)
[   33.168958][   T36]  ret_from_fork (arch/x86/kernel/process.c:158)
[   33.169086][   T36]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   33.169249][   T36]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   33.169394][   T36]  ? kthread_affine_node (kernel/kthread.c:378)
[   33.169519][   T36]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.171280][   T12] ------------[ cut here ]------------
| [   35.171464][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   35.171710][   T12] Modules linked in:
| [   35.172089][   T12] Tainted: [W]=WARN
[   35.172186][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.172342][   T12] Workqueue: netns cleanup_net
[   35.172475][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.172638][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.173087][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   35.173252][   T12] RAX: 00000000ffffffa6 RBX: ff1100000ff79c40 RCX: 1ff4000000018eed
[   35.173441][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ff79cfc
[   35.173628][   T12] RBP: ff110000051a1000 R08: 1fe2200001fef3a1 R09: ff11000001aed1d0
[   35.173813][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   35.174074][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.174289][   T12] FS:  0000000000000000(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   35.174516][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.174674][   T12] CR2: 000055cac4453ae8 CR3: 000000000e234001 CR4: 0000000000771ef0
[   35.174859][   T12] PKRU: 55555554
[   35.174952][   T12] Call Trace:
[   35.175043][   T12]  <TASK>
[   35.175110][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.175345][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.175499][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   35.175625][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   35.175777][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   35.175901][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   35.176026][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.176156][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   35.176279][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   35.176404][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.176528][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   35.176650][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.176770][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.176893][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.177016][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.177140][   T12]  process_one_work (kernel/workqueue.c:3314)
[   35.177273][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.177409][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.177538][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.177662][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.177783][   T12]  kthread (kernel/kthread.c:436)
[   35.177873][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.178027][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.178158][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.178283][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.178439][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.178563][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.178684][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.181175][   T12] ------------[ cut here ]------------
| [   35.181319][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   35.181570][   T12] Modules linked in:
| [   35.181945][   T12] Tainted: [W]=WARN
[   35.182036][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.182199][   T12] Workqueue: netns cleanup_net
[   35.182326][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.182491][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.182927][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   35.183079][   T12] RAX: 00000000ffffffa6 RBX: ff1100000ff791c0 RCX: 1ff4000000018eed
[   35.183271][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ff7927c
[   35.183484][   T12] RBP: ff11000008f11000 R08: 1fe2200001fef251 R09: ff11000001aed1d0
[   35.183668][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   35.183848][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.184033][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   35.184250][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.184410][   T12] CR2: 00007faa7be8e000 CR3: 000000003c54d004 CR4: 0000000000771ef0
[   35.184594][   T12] PKRU: 55555554
[   35.184686][   T12] Call Trace:
[   35.184778][   T12]  <TASK>
[   35.184844][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.185015][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.185173][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   35.185295][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   35.185565][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   35.185689][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   35.185812][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.185936][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   35.186132][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   35.186332][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.186466][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   35.186590][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.186781][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.186907][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.187033][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.187239][   T12]  process_one_work (kernel/workqueue.c:3314)
[   35.187377][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.187498][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.187626][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.187753][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.188018][   T12]  kthread (kernel/kthread.c:436)
[   35.188112][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.188273][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.188401][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.188525][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.188679][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.188801][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.188998][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.192030][   T12] ------------[ cut here ]------------
| [   35.192169][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   35.192413][   T12] Modules linked in:
| [   35.192790][   T12] Tainted: [W]=WARN
[   35.192884][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.193112][   T12] Workqueue: netns cleanup_net
[   35.193245][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.193410][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.194081][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   35.194316][   T12] RAX: 00000000ffffffa6 RBX: ff1100000e54a740 RCX: 1ff4000000018eed
[   35.194510][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e54a7fc
[   35.194757][   T12] RBP: ff1100000e51c000 R08: 1fe2200001ca9501 R09: ff11000001aed1d0
[   35.195055][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   35.195247][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.195440][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   35.195652][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.195879][   T12] CR2: 00007faa7be8e000 CR3: 000000003c54d004 CR4: 0000000000771ef0
[   35.196061][   T12] PKRU: 55555554
[   35.196157][   T12] Call Trace:
[   35.196249][   T12]  <TASK>
[   35.196313][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.196475][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.196628][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   35.196751][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   35.196875][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   35.196998][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   35.197121][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.197249][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   35.197379][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   35.197576][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.197702][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   35.197896][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.198017][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.198156][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.198278][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.198479][   T12]  process_one_work (kernel/workqueue.c:3314)
[   35.198605][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.198727][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.198854][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.199050][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.199179][   T12]  kthread (kernel/kthread.c:436)
[   35.199271][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.199426][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.199620][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.199745][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.199899][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.200021][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.200218][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.202852][   T12] ------------[ cut here ]------------
| [   35.202981][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   35.203229][   T12] Modules linked in:
| [   35.203605][   T12] Tainted: [W]=WARN
[   35.203699][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.203853][   T12] Workqueue: netns cleanup_net
[   35.203980][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.204139][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.204671][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   35.204828][   T12] RAX: 00000000ffffffa6 RBX: ff1100000e54a200 RCX: 1ff4000000018eed
[   35.205012][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e54a2bc
[   35.205203][   T12] RBP: ff1100000f5c9000 R08: 1fe2200001ca9459 R09: ff11000001aed1d0
[   35.205391][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   35.205581][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.205764][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   35.205977][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.206131][   T12] CR2: 00007faa7be8e000 CR3: 000000003c54d004 CR4: 0000000000771ef0
[   35.206322][   T12] PKRU: 55555554
[   35.206420][   T12] Call Trace:
[   35.206513][   T12]  <TASK>
[   35.206577][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.206736][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.206892][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   35.207016][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   35.207146][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   35.207269][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   35.207400][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.207526][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   35.207650][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   35.207773][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.207900][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   35.208024][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.208153][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.208279][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.208406][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.208533][   T12]  process_one_work (kernel/workqueue.c:3314)
[   35.208661][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.208786][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.208916][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.209044][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.209172][   T12]  kthread (kernel/kthread.c:436)
[   35.209336][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.209492][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.209614][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.209739][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.209892][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.210014][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.210136][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.212718][   T12] ------------[ cut here ]------------
| [   35.212916][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   35.213164][   T12] Modules linked in:
| [   35.213615][   T12] Tainted: [W]=WARN
[   35.213707][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.213862][   T12] Workqueue: netns cleanup_net
[   35.213989][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.214255][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.214775][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   35.214930][   T12] RAX: 00000000ffffffa6 RBX: ff1100000e54a040 RCX: 1ff4000000018eed
[   35.215114][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e54a0fc
[   35.215403][   T12] RBP: ff1100000f19c000 R08: 1fe2200001ca9421 R09: ff11000001aed1d0
[   35.215587][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   35.215769][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.216132][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   35.216445][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.216675][   T12] CR2: 00007faa7be8e000 CR3: 000000003c54d004 CR4: 0000000000771ef0
[   35.216861][   T12] PKRU: 55555554
[   35.216953][   T12] Call Trace:
[   35.217048][   T12]  <TASK>
[   35.217278][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.217438][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.217591][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   35.217715][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   35.217837][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   35.217959][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   35.218085][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.218308][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   35.218440][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   35.218562][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.218689][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   35.218814][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.218938][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.219064][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.219279][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.219412][   T12]  process_one_work (kernel/workqueue.c:3314)
[   35.219540][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.219663][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.219800][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.219928][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.220050][   T12]  kthread (kernel/kthread.c:436)
[   35.220243][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.220402][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.220523][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.220648][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.220801][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.220925][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.221342][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.233783][   T12] ------------[ cut here ]------------
| [   35.233937][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   35.234210][   T12] Modules linked in:
| [   35.234606][   T12] Tainted: [W]=WARN
[   35.234704][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.234866][   T12] Workqueue: netns cleanup_net
[   35.234998][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.235175][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.235632][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   35.235793][   T12] RAX: 00000000ffffffa6 RBX: ff1100000e54b700 RCX: 1ff4000000018eaf
[   35.235985][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e54b7bc
[   35.236258][   T12] RBP: ff110000102c4000 R08: 1fe2200001ca96f9 R09: ff11000001aed1d0
[   35.236456][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000041
[   35.236649][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f469000
[   35.236842][   T12] FS:  0000000000000000(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   35.237069][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.237313][   T12] CR2: 00007f8f4c52e310 CR3: 000000000e9d6002 CR4: 0000000000771ef0
[   35.237512][   T12] PKRU: 55555554
[   35.237608][   T12] Call Trace:
[   35.237704][   T12]  <TASK>
[   35.237770][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.237900][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.237998][   T12]  netif_close_many (net/core/dev.c:1804)
[   35.238125][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.238305][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.238436][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.238566][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   35.238696][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   35.238857][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   35.239018][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.239199][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.239360][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.239495][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   35.239625][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   35.239785][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   35.239918][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   35.240049][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   35.240225][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   35.240354][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   35.240489][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   35.240622][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   35.240750][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.240880][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   35.241011][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.241139][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.241275][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.241406][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.241536][   T12]  process_one_work (kernel/workqueue.c:3314)
[   35.241672][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.241799][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.241931][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.242065][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.242199][   T12]  kthread (kernel/kthread.c:436)
[   35.242296][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.242462][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.242592][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.242721][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.242883][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.243011][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.243139][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.245614][   T12] ------------[ cut here ]------------
| [   35.245804][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   35.246106][   T12] Modules linked in:
| [   35.246748][   T12] Tainted: [W]=WARN
[   35.246941][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.247211][   T12] Workqueue: netns cleanup_net
[   35.247451][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.247701][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.248226][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   35.248443][   T12] RAX: 00000000ffffffa6 RBX: ff1100000e54aac0 RCX: 1ff4000000018eaf
[   35.248682][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e54ab7c
[   35.248924][   T12] RBP: ff1100000f469000 R08: 1fe2200001ca9571 R09: ff11000001aed1d0
[   35.249180][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000041
[   35.249427][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f54c000
[   35.249670][   T12] FS:  0000000000000000(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   35.249942][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.250168][   T12] CR2: 00005635a92b02b8 CR3: 0000000009354003 CR4: 0000000000771ef0
[   35.250422][   T12] PKRU: 55555554
[   35.250565][   T12] Call Trace:
[   35.250708][   T12]  <TASK>
[   35.250823][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.251001][   T12]  ? notifier_call_chain (kernel/notifier.c:85)
[   35.251250][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.251457][   T12]  netif_close_many (net/core/dev.c:1804)
[   35.251687][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.251961][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.252254][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.252447][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   35.252638][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   35.252850][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   35.253060][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.253256][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.253472][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.253649][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   35.253825][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   35.254035][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   35.254228][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   35.254417][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   35.254597][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   35.254776][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   35.254955][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   35.255136][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   35.255325][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.255513][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   35.255691][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.255867][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.256048][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.256239][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.256419][   T12]  process_one_work (kernel/workqueue.c:3314)
[   35.256599][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.256776][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.256958][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.257154][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.257337][   T12]  kthread (kernel/kthread.c:436)
[   35.257485][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.257692][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.257870][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.258065][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.258288][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.258473][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.258655][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.261542][   T12] ------------[ cut here ]------------
| [   35.261719][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   35.262022][   T12] Modules linked in:
| [   35.262527][   T12] Tainted: [W]=WARN
[   35.262671][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.262878][   T12] Workqueue: netns cleanup_net
[   35.263061][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.263290][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.263799][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   35.264008][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c3bee40 RCX: 1ff4000000018eaf
[   35.264260][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c3beefc
[   35.264509][   T12] RBP: ff1100000f54c000 R08: 1fe2200001877de1 R09: ff11000001aed1d0
[   35.264745][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000041
[   35.264982][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000000c77e0
[   35.265237][   T12] FS:  0000000000000000(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   35.265518][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.265727][   T12] CR2: 00005635a92b02b8 CR3: 000000003c54d001 CR4: 0000000000771ef0
[   35.265969][   T12] PKRU: 55555554
[   35.266112][   T12] Call Trace:
[   35.266269][   T12]  <TASK>
[   35.266390][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.266567][   T12]  ? notifier_call_chain (kernel/notifier.c:85)
[   35.266745][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.266891][   T12]  netif_close_many (net/core/dev.c:1804)
[   35.267068][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.267257][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.267442][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.267634][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   35.267812][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   35.268021][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   35.268243][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.268426][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.268633][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.268811][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   35.268991][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   35.269221][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   35.269415][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   35.269595][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   35.269807][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   35.269982][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   35.270185][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   35.270365][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   35.270549][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.270729][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   35.270908][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.271083][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.271273][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.271460][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.271640][   T12]  process_one_work (kernel/workqueue.c:3314)
[   35.271822][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.271997][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.272195][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.272415][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.272593][   T12]  kthread (kernel/kthread.c:436)
[   35.272738][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.272946][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.273136][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.273331][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.273545][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.273723][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.273931][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.277847][   T12] ------------[ cut here ]------------
| [   35.278037][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   35.278358][   T12] Modules linked in:
| [   35.278838][   T12] Tainted: [W]=WARN
[   35.278978][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.279188][   T12] Workqueue: netns cleanup_net
[   35.279400][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.279620][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.280134][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   35.280379][   T12] RAX: 00000000ffffffa6 RBX: ff11000002401e00 RCX: 1ff4000000018ed5
[   35.280621][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000002401ebc
[   35.280866][   T12] RBP: ff110000102c4000 R08: 1fe22000004803d9 R09: ff11000001aed1d0
[   35.281113][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   35.281366][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.281618][   T12] FS:  0000000000000000(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   35.281891][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.282103][   T12] CR2: 00005635a92b02b8 CR3: 000000003c54d001 CR4: 0000000000771ef0
[   35.282360][   T12] PKRU: 55555554
[   35.282511][   T12] Call Trace:
[   35.282655][   T12]  <TASK>
[   35.282767][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.282980][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.283197][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.283385][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   35.283563][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   35.283776][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   35.283959][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   35.284138][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   35.284330][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   35.284514][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   35.284697][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   35.284873][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.285053][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   35.285246][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.285427][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.285605][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.285782][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.285961][   T12]  process_one_work (kernel/workqueue.c:3314)
[   35.286159][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.286348][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.286540][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.286722][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.286900][   T12]  kthread (kernel/kthread.c:436)
[   35.287044][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.287263][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.287447][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.287625][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.287832][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.288011][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.288198][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.291044][   T12] ------------[ cut here ]------------
| [   35.291384][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   35.291688][   T12] Modules linked in:
| [   35.292191][   T12] Tainted: [W]=WARN
[   35.292334][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.292547][   T12] Workqueue: netns cleanup_net
[   35.292727][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.292942][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.293474][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   35.293685][   T12] RAX: 00000000ffffffa6 RBX: ff1100000bc26200 RCX: 1ff4000000018ed5
[   35.293925][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bc262bc
[   35.294177][   T12] RBP: ff1100000f469000 R08: 1fe2200001784c59 R09: ff11000001aed1d0
[   35.294417][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   35.294661][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.294904][   T12] FS:  0000000000000000(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   35.295192][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.295411][   T12] CR2: 00005635a92b02b8 CR3: 000000003c54d001 CR4: 0000000000771ef0
[   35.295654][   T12] PKRU: 55555554
[   35.295796][   T12] Call Trace:
[   35.295939][   T12]  <TASK>
[   35.296053][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.296281][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.296498][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.296676][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   35.296852][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   35.297066][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   35.297258][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   35.297442][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   35.297619][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   35.297800][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   35.297981][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   35.298171][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.298353][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   35.298540][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.298719][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.298926][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.299107][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.299298][   T12]  process_one_work (kernel/workqueue.c:3314)
[   35.299483][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.299663][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.299848][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.300031][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.300221][   T12]  kthread (kernel/kthread.c:436)
[   35.300375][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.300587][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.300766][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.300948][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.301173][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.301367][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.301554][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.304508][   T12] ------------[ cut here ]------------
| [   35.304688][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   35.304995][   T12] Modules linked in:
| [   35.305500][   T12] Tainted: [W]=WARN
[   35.305643][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.305853][   T12] Workqueue: netns cleanup_net
[   35.306033][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.306730][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.307311][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   35.307578][   T12] RAX: 00000000ffffffa6 RBX: ff1100000cddce40 RCX: 1ff4000000018ed5
[   35.307859][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cddcefc
[   35.308198][   T12] RBP: ff1100000f54c000 R08: 1fe22000019bb9e1 R09: ff11000001aed1d0
[   35.308492][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   35.308775][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.309051][   T12] FS:  0000000000000000(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   35.309381][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.309626][   T12] CR2: 00005635a92b02b8 CR3: 000000003c54d001 CR4: 0000000000771ef0
[   35.309907][   T12] PKRU: 55555554
[   35.310100][   T12] Call Trace:
[   35.310299][   T12]  <TASK>
[   35.310466][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.310719][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.310998][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.311230][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   35.311460][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   35.311712][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   35.311933][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   35.312167][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   35.312484][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   35.312723][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   35.312949][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   35.313214][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.313476][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   35.313735][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.313951][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.314185][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.314407][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.314627][   T12]  process_one_work (kernel/workqueue.c:3314)
[   35.314853][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.315071][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.315307][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.315535][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.315753][   T12]  kthread (kernel/kthread.c:436)
[   35.315940][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.316201][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.316427][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.316646][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.316893][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.317111][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.317338][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.359844][  T475] ------------[ cut here ]------------
| [   35.360044][  T475] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/475
| [   35.360778][  T475] Modules linked in:
| [   35.361277][  T475] Tainted: [W]=WARN
[   35.361433][  T475] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.361654][  T475] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.361878][  T475] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.362418][  T475] RSP: 0018:ffa00000014d7a80 EFLAGS: 00010286
[   35.362634][  T475] RAX: 00000000ffffffa6 RBX: ff1100000f0b7540 RCX: 1ff400000029af16
[   35.362881][  T475] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000f0b75fc
[   35.363127][  T475] RBP: ff1100000f311000 R08: 1fe2200001e16ec1 R09: ff11000009abd180
[   35.363398][  T475] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   35.363649][  T475] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f311000
[   35.363899][  T475] FS:  00007f75fda2d840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   35.364194][  T475] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.364419][  T475] CR2: 00007f75fdc2ec20 CR3: 000000000ff9a005 CR4: 0000000000771ef0
[   35.364667][  T475] PKRU: 55555554
[   35.364815][  T475] Call Trace:
[   35.364963][  T475]  <TASK>
[   35.365080][  T475]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.365276][  T475]  ? notifier_call_chain (kernel/notifier.c:85)
[   35.365468][  T475]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.365622][  T475]  register_netdevice (net/core/dev.c:11488)
[   35.365809][  T475]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   35.366027][  T475]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   35.366227][  T475]  register_netdev (net/core/dev.c:11552)
[   35.366417][  T475]  loopback_net_init (drivers/net/loopback.c:218)
[   35.366603][  T475]  ops_init (net/core/net_namespace.c:137)
[   35.366755][  T475]  setup_net (net/core/net_namespace.c:446)
[   35.366905][  T475]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   35.367087][  T475]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   35.367284][  T475]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   35.367478][  T475]  copy_net_ns (net/core/net_namespace.c:579)
[   35.367665][  T475]  create_new_namespaces (kernel/nsproxy.c:132)
[   35.367853][  T475]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   35.368039][  T475]  ksys_unshare (kernel/fork.c:3243)
[   35.368236][  T475]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   35.368431][  T475]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   35.368618][  T475]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   35.368804][  T475]  ? __ia32_sys_open (fs/open.c:1374)
[   35.368989][  T475]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   35.369186][  T475]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   35.369378][  T475]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   35.369566][  T475]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   35.369749][  T475]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   35.369937][  T475]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.370168][  T475] RIP: 0033:0x7f75fdcefbcb
[   35.370358][  T475] 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
[   35.370896][  T475] RSP: 002b:00007fffddaee518 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   35.371160][  T475] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f75fdcefbcb
[   35.371414][  T475] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   35.371664][  T475] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   35.371913][  T475] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffddaf0740
[   35.372177][  T475] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffddaf1867
| [   35.377428][  T475] ------------[ cut here ]------------
| [   35.377612][  T475] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/475
| [   35.377894][  T475] Modules linked in:
| [   35.378386][  T475] Tainted: [W]=WARN
[   35.378536][  T475] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.378753][  T475] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.378975][  T475] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.379582][  T475] RSP: 0018:ffa00000014d7918 EFLAGS: 00010286
[   35.379853][  T475] RAX: 00000000ffffffa6 RBX: ff110000024003c0 RCX: 1ff400000029aee9
[   35.380167][  T475] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000240047c
[   35.380484][  T475] RBP: ff11000009541000 R08: 1fe2200000480091 R09: ff11000009abd180
[   35.380784][  T475] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   35.381084][  T475] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009541000
[   35.381406][  T475] FS:  00007f75fda2d840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   35.381741][  T475] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.382010][  T475] CR2: 00007f75fdc2ec20 CR3: 000000000ff9a005 CR4: 0000000000771ef0
[   35.382327][  T475] PKRU: 55555554
[   35.382534][  T475] Call Trace:
[   35.382736][  T475]  <TASK>
[   35.382907][  T475]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.383157][  T475]  ? notifier_call_chain (kernel/notifier.c:85)
[   35.383403][  T475]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.383606][  T475]  register_netdevice (net/core/dev.c:11488)
[   35.383842][  T475]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   35.384111][  T475]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   35.384359][  T475]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   35.384600][  T475]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   35.384834][  T475]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   35.385070][  T475]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   35.385315][  T475]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   35.385564][  T475]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   35.385808][  T475]  ops_init (net/core/net_namespace.c:137)
[   35.386010][  T475]  setup_net (net/core/net_namespace.c:446)
[   35.386227][  T475]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   35.386469][  T475]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   35.386704][  T475]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   35.386939][  T475]  copy_net_ns (net/core/net_namespace.c:579)
[   35.387188][  T475]  create_new_namespaces (kernel/nsproxy.c:132)
[   35.387436][  T475]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   35.387673][  T475]  ksys_unshare (kernel/fork.c:3243)
[   35.387902][  T475]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   35.388082][  T475]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   35.388278][  T475]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   35.388469][  T475]  ? __ia32_sys_open (fs/open.c:1374)
[   35.388654][  T475]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   35.388834][  T475]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   35.389017][  T475]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   35.389212][  T475]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   35.389400][  T475]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   35.389583][  T475]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.389795][  T475] RIP: 0033:0x7f75fdcefbcb
[   35.389982][  T475] 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
[   35.390522][  T475] RSP: 002b:00007fffddaee518 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   35.390769][  T475] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f75fdcefbcb
[   35.391016][  T475] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   35.391279][  T475] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   35.391532][  T475] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffddaf0740
[   35.391777][  T475] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffddaf1867
| [   35.394153][   T12] ------------[ cut here ]------------
| [   35.394286][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   35.394535][   T12] Modules linked in:
| [   35.394908][   T12] Tainted: [W]=WARN
[   35.394999][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.395250][   T12] Workqueue: netns cleanup_net
[   35.395379][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.395535][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.395970][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   35.396122][   T12] RAX: 00000000ffffffa6 RBX: ff1100000f49ce40 RCX: 1ff4000000018eed
[   35.396306][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000f49cefc
[   35.396489][   T12] RBP: ff1100000ffcc000 R08: 1fe2200001e939e1 R09: ff11000001aed1d0
[   35.396667][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   35.396846][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.397026][   T12] FS:  0000000000000000(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   35.397243][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.397401][   T12] CR2: 000055caeb73bc6c CR3: 000000003c54d006 CR4: 0000000000771ef0
[   35.397582][   T12] PKRU: 55555554
[   35.397672][   T12] Call Trace:
[   35.397764][   T12]  <TASK>
[   35.397832][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.397985][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.398135][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   35.398264][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   35.398390][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   35.398511][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   35.398636][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.398767][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   35.398889][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   35.399009][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.399133][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   35.399263][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.399388][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.399509][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.399640][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.399763][   T12]  process_one_work (kernel/workqueue.c:3314)
[   35.399887][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.400006][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.400133][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.400265][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.400390][   T12]  kthread (kernel/kthread.c:436)
[   35.400486][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.400641][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.400762][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.400885][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.401037][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.401164][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.401284][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.403468][   T12] ------------[ cut here ]------------
| [   35.403592][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   35.403825][   T12] Modules linked in:
| [   35.404333][   T12] Tainted: [W]=WARN
[   35.404430][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.404582][   T12] Workqueue: netns cleanup_net
[   35.404707][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.404864][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.405297][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   35.405453][   T12] RAX: 00000000ffffffa6 RBX: ff1100000f49d540 RCX: 1ff4000000018eed
[   35.405632][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000f49d5fc
[   35.405813][   T12] RBP: ff11000008b81000 R08: 1fe2200001e93ac1 R09: ff11000001aed1d0
[   35.405992][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   35.406179][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.406361][   T12] FS:  0000000000000000(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   35.406585][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.406737][   T12] CR2: 000055caeb73bc6c CR3: 000000003c54d006 CR4: 0000000000771ef0
[   35.406919][   T12] PKRU: 55555554
[   35.407011][   T12] Call Trace:
[   35.407101][   T12]  <TASK>
[   35.407168][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.407323][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.407479][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   35.407600][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   35.407723][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   35.407843][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   35.407964][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.408088][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   35.408215][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   35.408334][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.408462][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   35.408585][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.408705][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.408829][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.408951][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.409074][   T12]  process_one_work (kernel/workqueue.c:3314)
[   35.409206][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.409325][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.409452][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.409577][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.409699][   T12]  kthread (kernel/kthread.c:436)
[   35.409792][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.409943][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.410062][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.410186][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.410338][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.410472][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.410592][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.412750][   T12] ------------[ cut here ]------------
| [   35.412873][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   35.413114][   T12] Modules linked in:
| [   35.413486][   T12] Tainted: [W]=WARN
[   35.413577][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.413726][   T12] Workqueue: netns cleanup_net
[   35.413850][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.414008][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.414453][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   35.414604][   T12] RAX: 00000000ffffffa6 RBX: ff1100000f49dc40 RCX: 1ff4000000018eed
[   35.414784][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000f49dcfc
[   35.414976][   T12] RBP: ff1100000a66c000 R08: 1fe2200001e93ba1 R09: ff11000001aed1d0
[   35.415163][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   35.415341][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.415537][   T12] FS:  0000000000000000(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   35.415756][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.415909][   T12] CR2: 000055caeb73bc6c CR3: 000000003c54d006 CR4: 0000000000771ef0
[   35.416090][   T12] PKRU: 55555554
[   35.416183][   T12] Call Trace:
[   35.416273][   T12]  <TASK>
[   35.416337][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.416495][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.416644][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   35.416766][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   35.416888][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   35.417008][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   35.417129][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.417256][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   35.417392][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   35.417512][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.417639][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   35.417761][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.417883][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.418006][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.418125][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.418254][   T12]  process_one_work (kernel/workqueue.c:3314)
[   35.418385][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.418506][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.418632][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.418756][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.418877][   T12]  kthread (kernel/kthread.c:436)
[   35.418968][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.419122][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.419250][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.419376][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.419526][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.419647][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.419767][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.429404][   T12] ------------[ cut here ]------------
| [   35.429543][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   35.429781][   T12] Modules linked in:
| [   35.430152][   T12] Tainted: [W]=WARN
[   35.430244][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.430403][   T12] Workqueue: netns cleanup_net
[   35.430530][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.430687][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.431121][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   35.431278][   T12] RAX: 00000000ffffffa6 RBX: ff1100000e246040 RCX: 1ff4000000018eed
[   35.431464][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e2460fc
[   35.431645][   T12] RBP: ff1100000e82c000 R08: 1fe2200001c48c21 R09: ff11000001aed1d0
[   35.431835][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   35.432018][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.432206][   T12] FS:  0000000000000000(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   35.432422][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.432579][   T12] CR2: 000055caeb73bc6c CR3: 000000003c54d006 CR4: 0000000000771ef0
[   35.432761][   T12] PKRU: 55555554
[   35.432852][   T12] Call Trace:
[   35.432944][   T12]  <TASK>
[   35.433007][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.433167][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.433317][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   35.433444][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   35.433569][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   35.433691][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   35.433814][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.433937][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   35.434061][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   35.434191][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.434316][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   35.434444][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.434566][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.434689][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.434810][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.434933][   T12]  process_one_work (kernel/workqueue.c:3314)
[   35.435060][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.435188][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.435314][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.435447][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.435569][   T12]  kthread (kernel/kthread.c:436)
[   35.435659][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.435812][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.435934][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.436057][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.436309][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.436437][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.436559][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.439705][   T12] ------------[ cut here ]------------
| [   35.439838][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   35.440077][   T12] Modules linked in:
| [   35.440454][   T12] Tainted: [W]=WARN
[   35.440545][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.440699][   T12] Workqueue: netns cleanup_net
[   35.440825][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.440983][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.441432][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   35.441587][   T12] RAX: 00000000ffffffa6 RBX: ff1100000e2463c0 RCX: 1ff4000000018eed
[   35.441769][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e24647c
[   35.441950][   T12] RBP: ff1100000f7d1000 R08: 1fe2200001c48c91 R09: ff11000001aed1d0
[   35.442130][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   35.442316][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.442502][   T12] FS:  0000000000000000(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   35.442714][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.442865][   T12] CR2: 000055caeb73bc6c CR3: 000000003c54d006 CR4: 0000000000771ef0
[   35.443048][   T12] PKRU: 55555554
[   35.443140][   T12] Call Trace:
[   35.443237][   T12]  <TASK>
[   35.443300][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.443461][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.443613][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   35.443736][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   35.443859][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   35.443979][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   35.444103][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.444232][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   35.444360][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   35.444486][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.444612][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   35.444734][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.444854][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.444983][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.445104][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.445232][   T12]  process_one_work (kernel/workqueue.c:3314)
[   35.445357][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.445482][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.445610][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.445736][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.445858][   T12]  kthread (kernel/kthread.c:436)
[   35.445952][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.446104][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.446276][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.446403][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.446554][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.446676][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.446802][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.451742][  T475] ------------[ cut here ]------------
| [   35.451898][  T475] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/475
| [   35.452139][  T475] Modules linked in:
| [   35.452539][  T475] Tainted: [W]=WARN
[   35.452643][  T475] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.452815][  T475] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.452994][  T475] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.453494][  T475] RSP: 0018:ffa00000014d78f8 EFLAGS: 00010286
[   35.453668][  T475] RAX: 00000000ffffffa6 RBX: ff11000009cf8e40 RCX: 1ff400000029aee5
[   35.453871][  T475] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009cf8efc
[   35.454076][  T475] RBP: ff1100000f549000 R08: 1fe220000139f1e1 R09: ff11000009abd180
[   35.454287][  T475] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   35.454498][  T475] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f549000
[   35.454704][  T475] FS:  00007f75fda2d840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   35.454944][  T475] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.455115][  T475] CR2: 00007f9cd45b4000 CR3: 000000000ff9a003 CR4: 0000000000771ef0
[   35.455328][  T475] PKRU: 55555554
[   35.455435][  T475] Call Trace:
[   35.455538][  T475]  <TASK>
[   35.455610][  T475]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.455749][  T475]  ? notifier_call_chain (kernel/notifier.c:85)
[   35.455887][  T475]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.455991][  T475]  register_netdevice (net/core/dev.c:11488)
[   35.456129][  T475]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   35.456306][  T475]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   35.456449][  T475]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   35.456586][  T475]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   35.456724][  T475]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   35.456864][  T475]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   35.457002][  T475]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   35.457147][  T475]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   35.457286][  T475]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   35.457430][  T475]  vti_init_net (net/ipv4/ip_vti.c:517)
[   35.457567][  T475]  ops_init (net/core/net_namespace.c:137)
[   35.457673][  T475]  setup_net (net/core/net_namespace.c:446)
[   35.457777][  T475]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   35.457914][  T475]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   35.458052][  T475]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   35.458197][  T475]  copy_net_ns (net/core/net_namespace.c:579)
[   35.458335][  T475]  create_new_namespaces (kernel/nsproxy.c:132)
[   35.458479][  T475]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   35.458618][  T475]  ksys_unshare (kernel/fork.c:3243)
[   35.458756][  T475]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   35.458895][  T475]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   35.459034][  T475]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   35.459178][  T475]  ? __ia32_sys_open (fs/open.c:1374)
[   35.459318][  T475]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   35.459461][  T475]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   35.459599][  T475]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   35.459737][  T475]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   35.459876][  T475]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   35.460014][  T475]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.460190][  T475] RIP: 0033:0x7f75fdcefbcb
[   35.460334][  T475] 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
[   35.460825][  T475] RSP: 002b:00007fffddaee518 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   35.461035][  T475] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f75fdcefbcb
[   35.461247][  T475] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   35.461457][  T475] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   35.461662][  T475] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffddaf0740
[   35.461868][  T475] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffddaf1867
| [   35.466055][  T475] ------------[ cut here ]------------
| [   35.466213][  T475] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/475
| [   35.466450][  T475] Modules linked in:
| [   35.466831][  T475] Tainted: [W]=WARN
[   35.466934][  T475] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.467106][  T475] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.467289][  T475] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.467779][  T475] RSP: 0018:ffa00000014d7a78 EFLAGS: 00010286
[   35.467952][  T475] RAX: 00000000ffffffa6 RBX: ff11000009cf8040 RCX: 1ff400000029af15
[   35.468160][  T475] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009cf80fc
[   35.468363][  T475] RBP: ff1100001003c000 R08: 1fe220000139f021 R09: ff11000009abd180
[   35.468572][  T475] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   35.468776][  T475] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100001003c000
[   35.468979][  T475] FS:  00007f75fda2d840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   35.469222][  T475] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.469396][  T475] CR2: 00007f9cd45b4000 CR3: 000000000ff9a003 CR4: 0000000000771ef0
[   35.469599][  T475] PKRU: 55555554
[   35.469702][  T475] Call Trace:
[   35.469803][  T475]  <TASK>
[   35.469873][  T475]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.470008][  T475]  ? notifier_call_chain (kernel/notifier.c:85)
[   35.470149][  T475]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.470253][  T475]  register_netdevice (net/core/dev.c:11488)
[   35.470396][  T475]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   35.470564][  T475]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.470703][  T475]  register_netdev (net/core/dev.c:11552)
[   35.470840][  T475]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   35.470978][  T475]  ops_init (net/core/net_namespace.c:137)
[   35.471082][  T475]  setup_net (net/core/net_namespace.c:446)
[   35.471191][  T475]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   35.471327][  T475]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   35.471469][  T475]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   35.471608][  T475]  copy_net_ns (net/core/net_namespace.c:579)
[   35.471744][  T475]  create_new_namespaces (kernel/nsproxy.c:132)
[   35.471882][  T475]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   35.472019][  T475]  ksys_unshare (kernel/fork.c:3243)
[   35.472159][  T475]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   35.472296][  T475]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   35.472436][  T475]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   35.472573][  T475]  ? __ia32_sys_open (fs/open.c:1374)
[   35.472711][  T475]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   35.472845][  T475]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   35.472980][  T475]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   35.473114][  T475]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   35.473255][  T475]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   35.473396][  T475]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.473566][  T475] RIP: 0033:0x7f75fdcefbcb
[   35.473709][  T475] 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
[   35.474192][  T475] RSP: 002b:00007fffddaee518 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   35.474401][  T475] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f75fdcefbcb
[   35.474604][  T475] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   35.474803][  T475] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   35.475003][  T475] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffddaf0740
[   35.475208][  T475] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffddaf1867
| [   35.479348][  T475] ------------[ cut here ]------------
| [   35.479498][  T475] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/475
| [   35.479733][  T475] Modules linked in:
| [   35.480117][  T475] Tainted: [W]=WARN
[   35.480225][  T475] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.480398][  T475] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.480575][  T475] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.481059][  T475] RSP: 0018:ffa00000014d7a68 EFLAGS: 00010286
[   35.481235][  T475] RAX: 00000000ffffffa6 RBX: ff1100000e2471c0 RCX: 1ff400000029af13
[   35.481441][  T475] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e24727c
[   35.481643][  T475] RBP: ff1100000ffc9000 R08: 1fe2200001c48e51 R09: ff11000009abd180
[   35.481846][  T475] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   35.482048][  T475] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000ffc9000
[   35.482257][  T475] FS:  00007f75fda2d840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   35.482499][  T475] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.482669][  T475] CR2: 00007f9cd45b4000 CR3: 000000000ff9a003 CR4: 0000000000771ef0
[   35.482872][  T475] PKRU: 55555554
[   35.482973][  T475] Call Trace:
[   35.483074][  T475]  <TASK>
[   35.483149][  T475]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.483285][  T475]  ? notifier_call_chain (kernel/notifier.c:85)
[   35.483429][  T475]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.483533][  T475]  register_netdevice (net/core/dev.c:11488)
[   35.483669][  T475]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   35.483839][  T475]  register_netdev (net/core/dev.c:11552)
[   35.483975][  T475]  sit_init_net (net/ipv6/sit.c:1860)
[   35.484120][  T475]  ops_init (net/core/net_namespace.c:137)
[   35.484228][  T475]  setup_net (net/core/net_namespace.c:446)
[   35.484331][  T475]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   35.484471][  T475]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   35.484606][  T475]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   35.484744][  T475]  copy_net_ns (net/core/net_namespace.c:579)
[   35.484881][  T475]  create_new_namespaces (kernel/nsproxy.c:132)
[   35.485019][  T475]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   35.485158][  T475]  ksys_unshare (kernel/fork.c:3243)
[   35.485293][  T475]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   35.485432][  T475]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   35.485568][  T475]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   35.485704][  T475]  ? __ia32_sys_open (fs/open.c:1374)
[   35.485841][  T475]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   35.485975][  T475]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   35.486110][  T475]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   35.486250][  T475]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   35.486390][  T475]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   35.486526][  T475]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.486695][  T475] RIP: 0033:0x7f75fdcefbcb
[   35.486833][  T475] 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
[   35.487322][  T475] RSP: 002b:00007fffddaee518 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   35.487529][  T475] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f75fdcefbcb
[   35.487730][  T475] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   35.487930][  T475] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   35.488131][  T475] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffddaf0740
[   35.488338][  T475] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffddaf1867
| [   35.492704][  T475] ------------[ cut here ]------------
| [   35.492849][  T475] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/475
| [   35.493083][  T475] Modules linked in:
| [   35.493468][  T475] Tainted: [W]=WARN
[   35.493570][  T475] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.493740][  T475] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.493915][  T475] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.494404][  T475] RSP: 0018:ffa00000014d7a78 EFLAGS: 00010286
[   35.494575][  T475] RAX: 00000000ffffffa6 RBX: ff1100000ce58580 RCX: 1ff400000029af15
[   35.494777][  T475] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ce5863c
[   35.494979][  T475] RBP: ff110000020bc000 R08: 1fe22000019cb0c9 R09: ff11000009abd180
[   35.495187][  T475] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   35.495393][  T475] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000020bc000
[   35.495601][  T475] FS:  00007f75fda2d840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   35.495840][  T475] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.496012][  T475] CR2: 00007f9cd45b4000 CR3: 000000000ff9a003 CR4: 0000000000771ef0
[   35.496223][  T475] PKRU: 55555554
[   35.496326][  T475] Call Trace:
[   35.496429][  T475]  <TASK>
[   35.496501][  T475]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.496636][  T475]  ? notifier_call_chain (kernel/notifier.c:85)
[   35.496772][  T475]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.496875][  T475]  register_netdevice (net/core/dev.c:11488)
[   35.497013][  T475]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   35.497189][  T475]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.497328][  T475]  register_netdev (net/core/dev.c:11552)
[   35.497469][  T475]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   35.497606][  T475]  ops_init (net/core/net_namespace.c:137)
[   35.497710][  T475]  setup_net (net/core/net_namespace.c:446)
[   35.497814][  T475]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   35.497949][  T475]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   35.498085][  T475]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   35.498241][  T475]  copy_net_ns (net/core/net_namespace.c:579)
[   35.498384][  T475]  create_new_namespaces (kernel/nsproxy.c:132)
[   35.498523][  T475]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   35.498660][  T475]  ksys_unshare (kernel/fork.c:3243)
[   35.498794][  T475]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   35.498929][  T475]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   35.499065][  T475]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   35.499209][  T475]  ? __ia32_sys_open (fs/open.c:1374)
[   35.499349][  T475]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   35.499487][  T475]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   35.499623][  T475]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   35.499757][  T475]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   35.499895][  T475]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   35.500031][  T475]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.500207][  T475] RIP: 0033:0x7f75fdcefbcb
[   35.500348][  T475] 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
[   35.500835][  T475] RSP: 002b:00007fffddaee518 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   35.501038][  T475] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f75fdcefbcb
[   35.501247][  T475] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   35.501459][  T475] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   35.501661][  T475] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffddaf0740
[   35.501862][  T475] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffddaf1867
| [   35.517187][   T12] ------------[ cut here ]------------
| [   35.517396][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   35.517667][   T12] Modules linked in:
| [   35.518058][   T12] Tainted: [W]=WARN
[   35.518164][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.518324][   T12] Workqueue: netns cleanup_net
[   35.518462][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.518630][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.519084][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   35.519252][   T12] RAX: 00000000ffffffa6 RBX: ff1100000ce58740 RCX: 1ff4000000018eaf
[   35.519449][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ce587fc
[   35.519645][   T12] RBP: ff1100000e131000 R08: 1fe22000019cb101 R09: ff11000001aed1d0
[   35.519834][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000041
[   35.520023][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000000c77e0
[   35.520222][   T12] FS:  0000000000000000(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   35.520450][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.520609][   T12] CR2: 000055caeb73bc6c CR3: 000000003c54d006 CR4: 0000000000771ef0
[   35.520800][   T12] PKRU: 55555554
[   35.520894][   T12] Call Trace:
[   35.520988][   T12]  <TASK>
[   35.521054][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.521189][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.521286][   T12]  netif_close_many (net/core/dev.c:1804)
[   35.521414][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.521540][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.521667][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.521793][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   35.521919][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   35.522078][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   35.522244][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.522376][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   35.522503][   T12]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   35.522630][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.522791][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   35.522921][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   35.523052][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   35.523187][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   35.523313][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   35.523444][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   35.523576][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   35.523702][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.523832][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   35.523960][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.524087][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.524220][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.524349][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.524481][   T12]  process_one_work (kernel/workqueue.c:3314)
[   35.524612][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.524738][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.524873][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.525006][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.525135][   T12]  kthread (kernel/kthread.c:436)
[   35.525239][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.525402][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.525531][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.525660][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.525821][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.525951][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.526080][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.528797][   T12] ------------[ cut here ]------------
| [   35.528978][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   35.529297][   T12] Modules linked in:
| [   35.529683][   T12] Tainted: [W]=WARN
[   35.529776][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.529929][   T12] Workqueue: netns cleanup_net
[   35.530057][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.530269][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.530716][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   35.530920][   T12] RAX: 00000000ffffffa6 RBX: ff1100000ce598c0 RCX: 1ff4000000018ed5
[   35.531102][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ce5997c
[   35.531335][   T12] RBP: ff1100000e131000 R08: 1fe22000019cb331 R09: ff11000001aed1d0
[   35.531524][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   35.531708][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.531908][   T12] FS:  0000000000000000(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   35.532132][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.532334][   T12] CR2: 000055caeb73bc6c CR3: 000000003c54d006 CR4: 0000000000771ef0
[   35.532526][   T12] PKRU: 55555554
[   35.532617][   T12] Call Trace:
[   35.532709][   T12]  <TASK>
[   35.532773][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.532930][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.533086][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   35.533259][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   35.533393][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   35.533518][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   35.533642][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   35.533778][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   35.533903][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   35.534026][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.534203][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   35.534330][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.534458][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.534583][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.534706][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.534831][   T12]  process_one_work (kernel/workqueue.c:3314)
[   35.534958][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.535079][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.535255][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.535388][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.535513][   T12]  kthread (kernel/kthread.c:436)
[   35.535606][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.535760][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.535885][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.536011][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.536217][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.536343][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.536471][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.549775][  T476] ------------[ cut here ]------------
| [   35.549965][  T476] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/476
| [   35.550258][  T476] Modules linked in:
| [   35.550742][  T476] Tainted: [W]=WARN
[   35.550889][  T476] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.551102][  T476] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.552113][  T476] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.552660][  T476] RSP: 0018:ffa0000001107020 EFLAGS: 00010286
[   35.552878][  T476] RAX: 00000000ffffffa6 RBX: ff1100000c908200 RCX: 1ff4000000220dca
[   35.553125][  T476] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c9082bc
[   35.553397][  T476] RBP: ff1100000f311000 R08: 1fe2200001921059 R09: ff1100000f290b58
[   35.553651][  T476] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[   35.553900][  T476] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   35.554161][  T476] FS:  00007fd5e768d840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   35.554452][  T476] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.554674][  T476] CR2: 000000003e3e7988 CR3: 000000000e085001 CR4: 0000000000771ef0
[   35.554924][  T476] PKRU: 55555554
[   35.555073][  T476] Call Trace:
[   35.555233][  T476]  <TASK>
[   35.555351][  T476]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.555544][  T476]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.555696][  T476]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   35.555897][  T476]  __dev_notify_flags (net/core/dev.c:9787)
[   35.556085][  T476]  ? netif_change_name (net/core/dev.c:1495)
[   35.556279][  T476]  ? __dev_change_flags (net/core/dev.c:9752)
[   35.556470][  T476]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   35.556650][  T476]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.556832][  T476]  ? 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))
[   35.557015][  T476]  netif_change_flags (net/core/dev.c:9820)
[   35.557212][  T476]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   35.557399][  T476]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   35.557582][  T476]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   35.557763][  T476]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   35.557976][  T476]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   35.558167][  T476]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   35.558350][  T476]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   35.558541][  T476]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   35.558723][  T476]  ? __kernel_text_address (kernel/extable.c:79)
[   35.558903][  T476]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   35.559085][  T476]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.559280][  T476]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   35.559471][  T476]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.559653][  T476]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.559836][  T476]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.560015][  T476]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.560210][  T476]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   35.560398][  T476]  ? __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)
[   35.560577][  T476]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   35.560781][  T476]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   35.560968][  T476]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   35.561169][  T476]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   35.561360][  T476]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   35.561553][  T476]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.561736][  T476]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   35.561920][  T476]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   35.562103][  T476]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   35.562296][  T476]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.562487][  T476]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.562671][  T476]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   35.562854][  T476]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   35.563037][  T476]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.563232][  T476]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   35.563420][  T476]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   35.563605][  T476]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   35.563788][  T476]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   35.563972][  T476]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   35.564171][  T476]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.564351][  T476]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   35.564545][  T476]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   35.564729][  T476]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   35.564914][  T476]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   35.565101][  T476]  ? 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))
[   35.565295][  T476]  ? 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))
[   35.565488][  T476]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   35.565676][  T476]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   35.565859][  T476]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   35.566042][  T476]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   35.566239][  T476]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   35.566433][  T476]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   35.566618][  T476]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   35.566804][  T476]  ? copy_msghdr_from_user (net/socket.c:2635)
[   35.567003][  T476]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   35.567228][  T476]  ? move_addr_to_kernel (net/socket.c:258)
[   35.567419][  T476]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   35.567602][  T476]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   35.567791][  T476]  ___sys_sendmsg (net/socket.c:2752)
[   35.567973][  T476]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   35.568203][  T476]  ? copy_msghdr_from_user (net/socket.c:2603)
[   35.568408][  T476]  __sys_sendmsg (net/socket.c:2784)
[   35.568594][  T476]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   35.568777][  T476]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   35.568994][  T476]  ? 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)
[   35.569191][  T476]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.569381][  T476]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   35.569565][  T476]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   35.569748][  T476]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   35.569935][  T476]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.570164][  T476] RIP: 0033:0x7fd5e78c708e
[   35.570354][  T476] 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
[   35.570887][  T476] RSP: 002b:00007fffd8b7cd00 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   35.571153][  T476] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd5e78c708e
[   35.571406][  T476] RDX: 0000000000000000 RSI: 00007fffd8b7cdb0 RDI: 0000000000000005
[   35.571656][  T476] RBP: 00007fffd8b7cd10 R08: 0000000000000000 R09: 0000000000000000
[   35.571902][  T476] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ea2d
[   35.572166][  T476] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fffd8b7d480
| [   35.783425][  T484] ------------[ cut here ]------------
| [   35.783625][  T484] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/484
| [   35.783863][  T484] Modules linked in:
| [   35.784245][  T484] Tainted: [W]=WARN
[   35.784498][  T484] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.784663][  T484] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.784837][  T484] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.785324][  T484] RSP: 0018:ffa0000001507a80 EFLAGS: 00010286
[   35.785494][  T484] RAX: 00000000ffffffa6 RBX: ff1100000cddd8c0 RCX: 1ff40000002a0f16
[   35.785690][  T484] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cddd97c
[   35.785889][  T484] RBP: ff11000009301000 R08: 1fe22000019bbb31 R09: ff1100000f022e80
[   35.786086][  T484] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   35.786287][  T484] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009301000
[   35.786491][  T484] FS:  00007fbc06357840(0000) GS:ff110000b3c47000(0000) knlGS:0000000000000000
[   35.786724][  T484] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.786890][  T484] CR2: 00007fbc065617d0 CR3: 0000000012139005 CR4: 0000000000771ef0
[   35.787090][  T484] PKRU: 55555554
[   35.787197][  T484] Call Trace:
[   35.787297][  T484]  <TASK>
[   35.787367][  T484]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.787547][  T484]  ? notifier_call_chain (kernel/notifier.c:85)
[   35.787696][  T484]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.787810][  T484]  register_netdevice (net/core/dev.c:11488)
[   35.787956][  T484]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   35.788132][  T484]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   35.788285][  T484]  register_netdev (net/core/dev.c:11552)
[   35.788430][  T484]  loopback_net_init (drivers/net/loopback.c:218)
[   35.788575][  T484]  ops_init (net/core/net_namespace.c:137)
[   35.788686][  T484]  setup_net (net/core/net_namespace.c:446)
[   35.788794][  T484]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   35.788935][  T484]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   35.789078][  T484]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   35.789229][  T484]  copy_net_ns (net/core/net_namespace.c:579)
[   35.789380][  T484]  create_new_namespaces (kernel/nsproxy.c:132)
[   35.789534][  T484]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   35.789681][  T484]  ksys_unshare (kernel/fork.c:3243)
[   35.789827][  T484]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   35.789972][  T484]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   35.790115][  T484]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   35.790261][  T484]  ? __ia32_sys_open (fs/open.c:1374)
[   35.790586][  T484]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   35.790730][  T484]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   35.790871][  T484]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   35.791012][  T484]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   35.791157][  T484]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   35.791297][  T484]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.791478][  T484] RIP: 0033:0x7fbc06619bcb
[   35.791624][  T484] 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
[   35.792119][  T484] RSP: 002b:00007fff950319a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   35.792335][  T484] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fbc06619bcb
[   35.792551][  T484] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   35.792762][  T484] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   35.792971][  T484] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff95033bd0
[   35.793185][  T484] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff95034865
| [   35.797523][  T484] ------------[ cut here ]------------
| [   35.797679][  T484] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/484
| [   35.797929][  T484] Modules linked in:
| [   35.798327][  T484] Tainted: [W]=WARN
[   35.798442][  T484] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.798622][  T484] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.798804][  T484] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.799305][  T484] RSP: 0018:ffa0000001507918 EFLAGS: 00010286
[   35.799491][  T484] RAX: 00000000ffffffa6 RBX: ff1100000c909e00 RCX: 1ff40000002a0ee9
[   35.799701][  T484] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c909ebc
[   35.799909][  T484] RBP: ff1100000e329000 R08: 1fe22000019213d9 R09: ff1100000f022e80
[   35.800117][  T484] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   35.800331][  T484] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e329000
[   35.800547][  T484] FS:  00007fbc06357840(0000) GS:ff110000b3c47000(0000) knlGS:0000000000000000
[   35.800790][  T484] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.800965][  T484] CR2: 00007fbc065617d0 CR3: 0000000012139005 CR4: 0000000000771ef0
[   35.801179][  T484] PKRU: 55555554
[   35.801285][  T484] Call Trace:
[   35.801393][  T484]  <TASK>
[   35.801465][  T484]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.801603][  T484]  ? notifier_call_chain (kernel/notifier.c:85)
[   35.801744][  T484]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.801850][  T484]  register_netdevice (net/core/dev.c:11488)
[   35.801993][  T484]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   35.802171][  T484]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   35.802314][  T484]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   35.802460][  T484]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   35.802600][  T484]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   35.802744][  T484]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   35.802885][  T484]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   35.803028][  T484]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   35.803176][  T484]  ops_init (net/core/net_namespace.c:137)
[   35.803284][  T484]  setup_net (net/core/net_namespace.c:446)
[   35.803448][  T484]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   35.803591][  T484]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   35.803734][  T484]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   35.803878][  T484]  copy_net_ns (net/core/net_namespace.c:579)
[   35.804020][  T484]  create_new_namespaces (kernel/nsproxy.c:132)
[   35.804167][  T484]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   35.804308][  T484]  ksys_unshare (kernel/fork.c:3243)
[   35.804454][  T484]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   35.804596][  T484]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   35.804739][  T484]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   35.804883][  T484]  ? __ia32_sys_open (fs/open.c:1374)
[   35.805031][  T484]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   35.805181][  T484]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   35.805323][  T484]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   35.805468][  T484]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   35.805607][  T484]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   35.805747][  T484]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.805921][  T484] RIP: 0033:0x7fbc06619bcb
[   35.806067][  T484] 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
[   35.806573][  T484] RSP: 002b:00007fff950319a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   35.806785][  T484] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fbc06619bcb
[   35.806995][  T484] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   35.807210][  T484] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   35.807424][  T484] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff95033bd0
[   35.807634][  T484] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff95034865
| [   35.811563][  T484] ------------[ cut here ]------------
| [   35.811713][  T484] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/484
| [   35.811965][  T484] Modules linked in:
| [   35.812552][  T484] Tainted: [W]=WARN
[   35.812657][  T484] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.812834][  T484] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.813017][  T484] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.813531][  T484] RSP: 0018:ffa00000015078f8 EFLAGS: 00010286
[   35.813710][  T484] RAX: 00000000ffffffa6 RBX: ff1100000bc26e40 RCX: 1ff40000002a0ee5
[   35.813923][  T484] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bc26efc
[   35.814136][  T484] RBP: ff1100001032c000 R08: 1fe2200001784de1 R09: ff1100000f022e80
[   35.814352][  T484] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   35.814568][  T484] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100001032c000
[   35.814781][  T484] FS:  00007fbc06357840(0000) GS:ff110000b3c47000(0000) knlGS:0000000000000000
[   35.815031][  T484] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.815212][  T484] CR2: 00007fbc065617d0 CR3: 0000000012139005 CR4: 0000000000771ef0
[   35.815428][  T484] PKRU: 55555554
[   35.815534][  T484] Call Trace:
[   35.815641][  T484]  <TASK>
[   35.815713][  T484]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.815855][  T484]  ? notifier_call_chain (kernel/notifier.c:85)
[   35.815999][  T484]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.816106][  T484]  register_netdevice (net/core/dev.c:11488)
[   35.816253][  T484]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   35.816434][  T484]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   35.816578][  T484]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   35.816721][  T484]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   35.816865][  T484]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   35.817010][  T484]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   35.817157][  T484]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   35.817300][  T484]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   35.817447][  T484]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   35.817590][  T484]  vti_init_net (net/ipv4/ip_vti.c:517)
[   35.817733][  T484]  ops_init (net/core/net_namespace.c:137)
[   35.817840][  T484]  setup_net (net/core/net_namespace.c:446)
[   35.817947][  T484]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   35.818091][  T484]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   35.818237][  T484]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   35.818384][  T484]  copy_net_ns (net/core/net_namespace.c:579)
[   35.818527][  T484]  create_new_namespaces (kernel/nsproxy.c:132)
[   35.818672][  T484]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   35.818814][  T484]  ksys_unshare (kernel/fork.c:3243)
[   35.818955][  T484]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   35.819098][  T484]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   35.819245][  T484]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   35.819392][  T484]  ? __ia32_sys_open (fs/open.c:1374)
[   35.819537][  T484]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   35.819679][  T484]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   35.819821][  T484]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   35.819963][  T484]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   35.820107][  T484]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   35.820256][  T484]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.820435][  T484] RIP: 0033:0x7fbc06619bcb
[   35.820581][  T484] 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
[   35.821082][  T484] RSP: 002b:00007fff950319a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   35.821300][  T484] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fbc06619bcb
[   35.821518][  T484] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   35.821733][  T484] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   35.821949][  T484] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff95033bd0
[   35.822168][  T484] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff95034865
| [   35.826351][  T484] ------------[ cut here ]------------
| [   35.826504][  T484] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/484
| [   35.826751][  T484] Modules linked in:
| [   35.827149][  T484] Tainted: [W]=WARN
[   35.827255][  T484] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.827438][  T484] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.827619][  T484] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.828115][  T484] RSP: 0018:ffa0000001507a78 EFLAGS: 00010286
[   35.828297][  T484] RAX: 00000000ffffffa6 RBX: ff1100000f0b6ac0 RCX: 1ff40000002a0f15
[   35.828514][  T484] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000f0b6b7c
[   35.828726][  T484] RBP: ff1100000e461000 R08: 1fe2200001e16d71 R09: ff1100000f022e80
[   35.828937][  T484] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   35.829155][  T484] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e461000
[   35.829368][  T484] FS:  00007fbc06357840(0000) GS:ff110000b3c47000(0000) knlGS:0000000000000000
[   35.829618][  T484] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.829795][  T484] CR2: 00007fbc065617d0 CR3: 0000000012139005 CR4: 0000000000771ef0
[   35.830007][  T484] PKRU: 55555554
[   35.830113][  T484] Call Trace:
[   35.830221][  T484]  <TASK>
[   35.830294][  T484]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.830440][  T484]  ? notifier_call_chain (kernel/notifier.c:85)
[   35.830580][  T484]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.830687][  T484]  register_netdevice (net/core/dev.c:11488)
[   35.830830][  T484]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   35.831005][  T484]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.831156][  T484]  register_netdev (net/core/dev.c:11552)
[   35.831299][  T484]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   35.831443][  T484]  ops_init (net/core/net_namespace.c:137)
[   35.831549][  T484]  setup_net (net/core/net_namespace.c:446)
[   35.831655][  T484]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   35.831795][  T484]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   35.831936][  T484]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   35.832080][  T484]  copy_net_ns (net/core/net_namespace.c:579)
[   35.832225][  T484]  create_new_namespaces (kernel/nsproxy.c:132)
[   35.832372][  T484]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   35.832512][  T484]  ksys_unshare (kernel/fork.c:3243)
[   35.832652][  T484]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   35.832792][  T484]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   35.832932][  T484]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   35.833163][  T484]  ? __ia32_sys_open (fs/open.c:1374)
[   35.833306][  T484]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   35.833448][  T484]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   35.833588][  T484]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   35.833812][  T484]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   35.833952][  T484]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   35.834091][  T484]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.834354][  T484] RIP: 0033:0x7fbc06619bcb
[   35.834505][  T484] 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
[   35.835088][  T484] RSP: 002b:00007fff950319a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   35.835303][  T484] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fbc06619bcb
[   35.835525][  T484] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   35.835820][  T484] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   35.836030][  T484] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff95033bd0
[   35.836329][  T484] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff95034865
| [   35.840825][  T484] ------------[ cut here ]------------
| [   35.840967][  T484] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/484
| [   35.841216][  T484] Modules linked in:
| [   35.841610][  T484] Tainted: [W]=WARN
[   35.841715][  T484] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.841977][  T484] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.842162][  T484] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.842757][  T484] RSP: 0018:ffa0000001507a68 EFLAGS: 00010286
[   35.842935][  T484] RAX: 00000000ffffffa6 RBX: ff1100000c908740 RCX: 1ff40000002a0f13
[   35.843236][  T484] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c9087fc
[   35.843453][  T484] RBP: ff1100000fcf1000 R08: 1fe2200001921101 R09: ff1100000f022e80
[   35.843665][  T484] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   35.843959][  T484] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fcf1000
[   35.844176][  T484] FS:  00007fbc06357840(0000) GS:ff110000b3c47000(0000) knlGS:0000000000000000
[   35.844513][  T484] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.844688][  T484] CR2: 00007fbc065617d0 CR3: 0000000012139005 CR4: 0000000000771ef0
[   35.844901][  T484] PKRU: 55555554
[   35.845008][  T484] Call Trace:
[   35.845199][  T484]  <TASK>
[   35.845270][  T484]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.845414][  T484]  ? notifier_call_chain (kernel/notifier.c:85)
[   35.845557][  T484]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.845665][  T484]  register_netdevice (net/core/dev.c:11488)
[   35.845890][  T484]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   35.846069][  T484]  register_netdev (net/core/dev.c:11552)
[   35.846214][  T484]  sit_init_net (net/ipv6/sit.c:1860)
[   35.846357][  T484]  ops_init (net/core/net_namespace.c:137)
[   35.846549][  T484]  setup_net (net/core/net_namespace.c:446)
[   35.846655][  T484]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   35.846795][  T484]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   35.846935][  T484]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   35.847167][  T484]  copy_net_ns (net/core/net_namespace.c:579)
[   35.847308][  T484]  create_new_namespaces (kernel/nsproxy.c:132)
[   35.847454][  T484]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   35.847596][  T484]  ksys_unshare (kernel/fork.c:3243)
[   35.847820][  T484]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   35.847961][  T484]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   35.848104][  T484]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   35.848251][  T484]  ? __ia32_sys_open (fs/open.c:1374)
[   35.848483][  T484]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   35.848617][  T484]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   35.848749][  T484]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   35.848879][  T484]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   35.849094][  T484]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   35.849231][  T484]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.849394][  T484] RIP: 0033:0x7fbc06619bcb
[   35.849529][  T484] 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
[   35.850114][  T484] RSP: 002b:00007fff950319a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   35.850407][  T484] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fbc06619bcb
[   35.850601][  T484] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   35.850794][  T484] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   35.851073][  T484] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff95033bd0
[   35.851274][  T484] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff95034865
| [   35.856673][  T484] ------------[ cut here ]------------
| [   35.856907][  T484] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/484
| [   35.857166][  T484] Modules linked in:
| [   35.857658][  T484] Tainted: [W]=WARN
[   35.857765][  T484] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.857945][  T484] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.858131][  T484] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.858661][  T484] RSP: 0018:ffa0000001507a78 EFLAGS: 00010286
[   35.858928][  T484] RAX: 00000000ffffffa6 RBX: ff1100000b1b4580 RCX: 1ff40000002a0f15
[   35.859153][  T484] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b1b463c
[   35.859374][  T484] RBP: ff1100000f15c000 R08: 1fe22000016368c9 R09: ff1100000f022e80
[   35.859675][  T484] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   35.859888][  T484] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f15c000
[   35.860196][  T484] FS:  00007fbc06357840(0000) GS:ff110000b3c47000(0000) knlGS:0000000000000000
[   35.860453][  T484] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.860634][  T484] CR2: 00007fbc065617d0 CR3: 0000000012139005 CR4: 0000000000771ef0
[   35.860941][  T484] PKRU: 55555554
[   35.861050][  T484] Call Trace:
[   35.861160][  T484]  <TASK>
[   35.861235][  T484]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.861381][  T484]  ? notifier_call_chain (kernel/notifier.c:85)
[   35.861609][  T484]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.861720][  T484]  register_netdevice (net/core/dev.c:11488)
[   35.861866][  T484]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   35.862043][  T484]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.862277][  T484]  register_netdev (net/core/dev.c:11552)
[   35.862428][  T484]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   35.862572][  T484]  ops_init (net/core/net_namespace.c:137)
[   35.862681][  T484]  setup_net (net/core/net_namespace.c:446)
[   35.862877][  T484]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   35.863019][  T484]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   35.863165][  T484]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   35.863310][  T484]  copy_net_ns (net/core/net_namespace.c:579)
[   35.863547][  T484]  create_new_namespaces (kernel/nsproxy.c:132)
[   35.863693][  T484]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   35.863836][  T484]  ksys_unshare (kernel/fork.c:3243)
[   35.863980][  T484]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   35.864215][  T484]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   35.864375][  T484]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   35.864509][  T484]  ? __ia32_sys_open (fs/open.c:1374)
[   35.864644][  T484]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   35.864862][  T484]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   35.864996][  T484]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   35.865129][  T484]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   35.865268][  T484]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   35.865493][  T484]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.865659][  T484] RIP: 0033:0x7fbc06619bcb
[   35.865797][  T484] 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
[   35.866374][  T484] RSP: 002b:00007fff950319a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   35.866578][  T484] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fbc06619bcb
[   35.866860][  T484] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   35.867055][  T484] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   35.867341][  T484] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff95033bd0
[   35.867551][  T484] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff95034865
| [   35.899832][  T485] ------------[ cut here ]------------
| [   35.900043][  T485] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/485
| [   35.900912][  T485] Modules linked in:
| [   35.901432][  T485] Tainted: [W]=WARN
[   35.901587][  T485] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.901822][  T485] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.902066][  T485] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.902649][  T485] RSP: 0018:ffa0000001517020 EFLAGS: 00010286
[   35.902880][  T485] RAX: 00000000ffffffa6 RBX: ff1100000f0b78c0 RCX: 1ff40000002a2dca
[   35.903321][  T485] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000f0b797c
[   35.903582][  T485] RBP: ff11000009301000 R08: 1fe2200001e16f31 R09: ff1100000eb2ae58
[   35.903822][  T485] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[   35.904062][  T485] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   35.904318][  T485] FS:  00007fc4649fc840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   35.904601][  T485] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.904846][  T485] CR2: 0000000007f9e988 CR3: 000000001204c002 CR4: 0000000000771ef0
[   35.905093][  T485] PKRU: 55555554
[   35.905251][  T485] Call Trace:
[   35.905403][  T485]  <TASK>
[   35.905518][  T485]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.905705][  T485]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.905857][  T485]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   35.906036][  T485]  __dev_notify_flags (net/core/dev.c:9787)
[   35.906227][  T485]  ? netif_change_name (net/core/dev.c:1495)
[   35.906416][  T485]  ? __dev_change_flags (net/core/dev.c:9752)
[   35.906605][  T485]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   35.906810][  T485]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.906993][  T485]  ? 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))
[   35.907191][  T485]  netif_change_flags (net/core/dev.c:9820)
[   35.907379][  T485]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   35.907558][  T485]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   35.907747][  T485]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   35.907926][  T485]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   35.908139][  T485]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   35.908332][  T485]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   35.908520][  T485]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   35.908698][  T485]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   35.908881][  T485]  ? __kernel_text_address (kernel/extable.c:79)
[   35.909063][  T485]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   35.909256][  T485]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.909443][  T485]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   35.909623][  T485]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.909803][  T485]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.909980][  T485]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.910170][  T485]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.910351][  T485]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   35.910540][  T485]  ? __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)
[   35.910747][  T485]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   35.910927][  T485]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   35.911108][  T485]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   35.911300][  T485]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   35.911488][  T485]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   35.911670][  T485]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.911850][  T485]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   35.912028][  T485]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   35.912219][  T485]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   35.912402][  T485]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.912584][  T485]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.912761][  T485]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   35.912974][  T485]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   35.913175][  T485]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.913368][  T485]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   35.913567][  T485]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   35.913756][  T485]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   35.913944][  T485]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   35.914132][  T485]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   35.914337][  T485]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.914526][  T485]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   35.914712][  T485]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   35.914900][  T485]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   35.915084][  T485]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   35.915285][  T485]  ? 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))
[   35.915473][  T485]  ? 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))
[   35.915664][  T485]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   35.915852][  T485]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   35.916044][  T485]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   35.916247][  T485]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   35.916443][  T485]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   35.916634][  T485]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   35.916825][  T485]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   35.917013][  T485]  ? copy_msghdr_from_user (net/socket.c:2635)
[   35.917212][  T485]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   35.917440][  T485]  ? move_addr_to_kernel (net/socket.c:258)
[   35.917632][  T485]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   35.917821][  T485]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   35.918008][  T485]  ___sys_sendmsg (net/socket.c:2752)
[   35.918206][  T485]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   35.918428][  T485]  ? copy_msghdr_from_user (net/socket.c:2603)
[   35.918623][  T485]  __sys_sendmsg (net/socket.c:2784)
[   35.918812][  T485]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   35.918999][  T485]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   35.919237][  T485]  ? 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)
[   35.919433][  T485]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.919623][  T485]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   35.919812][  T485]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   35.920000][  T485]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   35.920197][  T485]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.920421][  T485] RIP: 0033:0x7fc464c3608e
[   35.920617][  T485] 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
[   35.921171][  T485] RSP: 002b:00007ffccbd98690 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   35.921464][  T485] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fc464c3608e
[   35.921717][  T485] RDX: 0000000000000000 RSI: 00007ffccbd98740 RDI: 0000000000000005
[   35.921959][  T485] RBP: 00007ffccbd986a0 R08: 0000000000000000 R09: 0000000000000000
[   35.922212][  T485] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ea2e
[   35.922477][  T485] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffccbd98e10
| [   36.024196][  T488] ------------[ cut here ]------------
| [   36.024381][  T488] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/488
| [   36.024630][  T488] Modules linked in:
| [   36.025029][  T488] Tainted: [W]=WARN
[   36.025139][  T488] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   36.025327][  T488] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   36.025520][  T488] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   36.026024][  T488] RSP: 0018:ffa0000001546e30 EFLAGS: 00010286
[   36.026207][  T488] RAX: 00000000ffffffa6 RBX: ff11000009b14580 RCX: 1ff40000002a8d8c
[   36.026418][  T488] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009b1463c
[   36.026626][  T488] RBP: ff110000024ec000 R08: 1fe22000013628c9 R09: ff1100000f77ae80
[   36.026835][  T488] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   36.027046][  T488] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009704e84
[   36.027262][  T488] FS:  00007ff44a0e7840(0000) GS:ff110000b3c47000(0000) knlGS:0000000000000000
[   36.027509][  T488] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.027684][  T488] CR2: 00000000004eb188 CR3: 000000000ff81002 CR4: 0000000000771ef0
[   36.027892][  T488] PKRU: 55555554
[   36.027996][  T488] Call Trace:
[   36.028101][  T488]  <TASK>
[   36.028181][  T488]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   36.028322][  T488]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   36.028436][  T488]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[   36.028612][  T488]  __dev_notify_flags (net/core/dev.c:9787)
[   36.028755][  T488]  ? netif_change_name (net/core/dev.c:1495)
[   36.028894][  T488]  ? rtnl_newlink (net/core/rtnetlink.c:4150)
[   36.029033][  T488]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   36.029176][  T488]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   36.029315][  T488]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[   36.029460][  T488]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.029605][  T488]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   36.029743][  T488]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   36.029881][  T488]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   36.030020][  T488]  ? queue_delayed_work_on (kernel/workqueue.c:2616 (discriminator 6))
[   36.030904][  T488]  veth_newlink (drivers/net/veth.c:1871)
[   36.031049][  T488]  ? veth_poll_controller (drivers/net/veth.c:1470)
[   36.031219][  T488]  ? kasan_save_stack (mm/kasan/common.c:57)
[   36.031360][  T488]  ? kasan_save_track (mm/kasan/common.c:78)
[   36.031503][  T488]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   36.031657][  T488]  ? __kvmalloc_node_noprof (mm/slub.c:5296 mm/slub.c:6832)
[   36.031795][  T488]  ? alloc_netdev_mqs (net/core/dev.c:12129 (discriminator 7))
[   36.031935][  T488]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   36.032074][  T488]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   36.032222][  T488]  ? rtnl_create_link (net/core/rtnetlink.c:3720)
[   36.032368][  T488]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   36.032517][  T488]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   36.032655][  T488]  ? __dev_get_by_name (net/core/dev.c:883)
[   36.032794][  T488]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   36.032940][  T488]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   36.033084][  T488]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   36.033230][  T488]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.033369][  T488]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   36.033513][  T488]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   36.033652][  T488]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   36.033792][  T488]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.033935][  T488]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.034074][  T488]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   36.034219][  T488]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   36.034356][  T488]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   36.034501][  T488]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   36.034642][  T488]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   36.034784][  T488]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.034925][  T488]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   36.035065][  T488]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   36.035209][  T488]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   36.035350][  T488]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   36.035494][  T488]  ? 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))
[   36.035631][  T488]  ? 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))
[   36.035774][  T488]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   36.035917][  T488]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   36.036058][  T488]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   36.036205][  T488]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   36.036346][  T488]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   36.036493][  T488]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   36.036636][  T488]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   36.036777][  T488]  ? copy_msghdr_from_user (net/socket.c:2635)
[   36.036915][  T488]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   36.037087][  T488]  ? move_addr_to_kernel (net/socket.c:258)
[   36.037231][  T488]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.037376][  T488]  ? rcu_read_unlock (./include/linux/rcupdate.h:867 (discriminator 5))
[   36.037517][  T488]  ___sys_sendmsg (net/socket.c:2752)
[   36.037656][  T488]  ? wp_page_copy (./include/linux/pgtable.h:117 mm/memory.c:3976)
[   36.037795][  T488]  ? copy_msghdr_from_user (net/socket.c:2603)
[   36.037939][  T488]  ? do_wp_page (./include/linux/pgtable.h:117 mm/memory.c:4331)
[   36.038085][  T488]  ? 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))
[   36.038231][  T488]  __sys_sendmsg (net/socket.c:2784)
[   36.038378][  T488]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   36.038522][  T488]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.038662][  T488]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.038804][  T488]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   36.038943][  T488]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   36.039083][  T488]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   36.039224][  T488]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   36.039398][  T488] RIP: 0033:0x7ff44a32108e
[   36.039545][  T488] 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
[   36.040040][  T488] RSP: 002b:00007ffebde5e150 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   36.040259][  T488] RAX: ffffffffffffffda RBX: 00007ffebde5e900 RCX: 00007ff44a32108e
[   36.040470][  T488] RDX: 0000000000000000 RSI: 00007ffebde5e200 RDI: 0000000000000005
[   36.040678][  T488] RBP: 00007ffebde5e160 R08: 0000000000000000 R09: 0000000000000000
[   36.040885][  T488] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ea2e
[   36.041095][  T488] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffebde5e8d8
| [   36.061483][  T488] ------------[ cut here ]------------
| [   36.061681][  T488] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/488
| [   36.061969][  T488] Modules linked in:
| [   36.062471][  T488] Tainted: [W]=WARN
[   36.062622][  T488] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   36.062844][  T488] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   36.063075][  T488] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   36.063637][  T488] RSP: 0018:ffa00000015471b0 EFLAGS: 00010286
[   36.063861][  T488] RAX: 00000000ffffffa6 RBX: ff1100000b997e00 RCX: 1ff40000002a8dfc
[   36.064114][  T488] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b997ebc
[   36.064483][  T488] RBP: ff1100000591c000 R08: 1fe2200001732fd9 R09: ff1100000f77ae80
[   36.064735][  T488] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   36.064985][  T488] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffb6403b20
[   36.065255][  T488] FS:  00007ff44a0e7840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   36.065555][  T488] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.065774][  T488] CR2: 00007fb9c2033000 CR3: 000000000ff81001 CR4: 0000000000771ef0
[   36.066029][  T488] PKRU: 55555554
[   36.066192][  T488] Call Trace:
[   36.066344][  T488]  <TASK>
[   36.066473][  T488]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   36.066667][  T488]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   36.066821][  T488]  __dev_notify_flags (net/core/dev.c:9787)
[   36.067012][  T488]  ? netif_change_name (net/core/dev.c:1495)
[   36.067212][  T488]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   36.067407][  T488]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   36.067596][  T488]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   36.067783][  T488]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   36.067971][  T488]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   36.068169][  T488]  ? __dev_get_by_name (net/core/dev.c:883)
[   36.068357][  T488]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   36.068561][  T488]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   36.068752][  T488]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   36.068938][  T488]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.069123][  T488]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   36.069322][  T488]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   36.069520][  T488]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   36.069707][  T488]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.069897][  T488]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.070085][  T488]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   36.070283][  T488]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   36.070481][  T488]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   36.070669][  T488]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   36.070854][  T488]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   36.071039][  T488]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.071237][  T488]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   36.071435][  T488]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   36.071621][  T488]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   36.071810][  T488]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   36.072000][  T488]  ? 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))
[   36.072195][  T488]  ? 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))
[   36.072390][  T488]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   36.072579][  T488]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   36.072763][  T488]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   36.072950][  T488]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   36.073137][  T488]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   36.073336][  T488]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   36.073528][  T488]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   36.073715][  T488]  ? copy_msghdr_from_user (net/socket.c:2635)
[   36.073900][  T488]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   36.074120][  T488]  ? move_addr_to_kernel (net/socket.c:258)
[   36.074321][  T488]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.074518][  T488]  ? rcu_read_unlock (./include/linux/rcupdate.h:867 (discriminator 5))
[   36.074704][  T488]  ___sys_sendmsg (net/socket.c:2752)
[   36.074891][  T488]  ? wp_page_copy (./include/linux/pgtable.h:117 mm/memory.c:3976)
[   36.075078][  T488]  ? copy_msghdr_from_user (net/socket.c:2603)
[   36.075281][  T488]  ? do_wp_page (./include/linux/pgtable.h:117 mm/memory.c:4331)
[   36.075482][  T488]  ? 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))
[   36.075674][  T488]  __sys_sendmsg (net/socket.c:2784)
[   36.075861][  T488]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   36.076051][  T488]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.076249][  T488]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.076446][  T488]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   36.076634][  T488]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   36.076823][  T488]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   36.077010][  T488]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   36.077243][  T488] RIP: 0033:0x7ff44a32108e
[   36.077444][  T488] 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
[   36.077978][  T488] RSP: 002b:00007ffebde5e150 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   36.078246][  T488] RAX: ffffffffffffffda RBX: 00007ffebde5e900 RCX: 00007ff44a32108e
[   36.078506][  T488] RDX: 0000000000000000 RSI: 00007ffebde5e200 RDI: 0000000000000005
[   36.078761][  T488] RBP: 00007ffebde5e160 R08: 0000000000000000 R09: 0000000000000000
[   36.079013][  T488] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ea2e
[   36.079277][  T488] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffebde5e8d8
| [   36.362898][  T497] ------------[ cut here ]------------
| [   36.363092][  T497] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/497
| [   36.363375][  T497] Modules linked in:
| [   36.363753][  T497] Tainted: [W]=WARN
[   36.363853][  T497] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   36.364037][  T497] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   36.364255][  T497] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   36.364759][  T497] RSP: 0018:ffa00000015a7020 EFLAGS: 00010286
[   36.364924][  T497] RAX: 00000000ffffffa6 RBX: ff110000092b4e40 RCX: 1ff40000002b4dca
[   36.365123][  T497] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000092b4efc
[   36.365332][  T497] RBP: ff1100000591c000 R08: 1fe22000012569e1 R09: ff1100000f77d158
[   36.365535][  T497] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[   36.365728][  T497] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   36.365926][  T497] FS:  00007f3cf71a2840(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   36.366177][  T497] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.366350][  T497] CR2: 00007f3cf74721a0 CR3: 000000000f717003 CR4: 0000000000771ef0
[   36.366550][  T497] PKRU: 55555554
[   36.366648][  T497] Call Trace:
[   36.366748][  T497]  <TASK>
[   36.366818][  T497]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   36.366951][  T497]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   36.367051][  T497]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   36.367188][  T497]  __dev_notify_flags (net/core/dev.c:9787)
[   36.367378][  T497]  ? netif_change_name (net/core/dev.c:1495)
[   36.367552][  T497]  ? __dev_change_flags (net/core/dev.c:9752)
[   36.367685][  T497]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   36.367823][  T497]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.367959][  T497]  ? 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))
[   36.368094][  T497]  netif_change_flags (net/core/dev.c:9820)
[   36.368234][  T497]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   36.368367][  T497]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   36.368506][  T497]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   36.368639][  T497]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   36.368805][  T497]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   36.368957][  T497]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   36.369127][  T497]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   36.369267][  T497]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   36.369406][  T497]  ? __kernel_text_address (kernel/extable.c:79)
[   36.369574][  T497]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   36.369709][  T497]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.369841][  T497]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   36.369975][  T497]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.370106][  T497]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   36.370242][  T497]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.370410][  T497]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.370548][  T497]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   36.370682][  T497]  ? __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)
[   36.370814][  T497]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   36.370946][  T497]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   36.371079][  T497]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   36.371246][  T497]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   36.371384][  T497]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   36.371518][  T497]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.371648][  T497]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   36.371779][  T497]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   36.371910][  T497]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   36.372049][  T497]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.372207][  T497]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.372368][  T497]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   36.372503][  T497]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   36.372635][  T497]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.372769][  T497]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   36.372902][  T497]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   36.373043][  T497]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   36.373182][  T497]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   36.373335][  T497]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   36.373486][  T497]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.373622][  T497]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   36.373756][  T497]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   36.373889][  T497]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   36.374019][  T497]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   36.374160][  T497]  ? 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))
[   36.374315][  T497]  ? 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))
[   36.374456][  T497]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   36.374601][  T497]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   36.374730][  T497]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   36.374861][  T497]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   36.374997][  T497]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   36.375129][  T497]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   36.375269][  T497]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   36.375405][  T497]  ? copy_msghdr_from_user (net/socket.c:2635)
[   36.375538][  T497]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   36.375701][  T497]  ? move_addr_to_kernel (net/socket.c:258)
[   36.375834][  T497]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   36.375968][  T497]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   36.376107][  T497]  ___sys_sendmsg (net/socket.c:2752)
[   36.376244][  T497]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   36.376441][  T497]  ? copy_msghdr_from_user (net/socket.c:2603)
[   36.376583][  T497]  __sys_sendmsg (net/socket.c:2784)
[   36.376730][  T497]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   36.376866][  T497]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   36.377035][  T497]  ? 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)
[   36.377173][  T497]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.377307][  T497]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   36.377445][  T497]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   36.377578][  T497]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   36.377721][  T497]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   36.377914][  T497] RIP: 0033:0x7f3cf73dc08e
[   36.378053][  T497] 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
[   36.378541][  T497] RSP: 002b:00007ffdae587720 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   36.378748][  T497] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f3cf73dc08e
[   36.378952][  T497] RDX: 0000000000000000 RSI: 00007ffdae5877d0 RDI: 0000000000000005
[   36.379159][  T497] RBP: 00007ffdae587730 R08: 0000000000000000 R09: 0000000000000000
[   36.379366][  T497] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ea2e
[   36.379573][  T497] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffdae587ea8
| [   36.418088][  T498] ------------[ cut here ]------------
| [   36.418498][  T498] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/498
| [   36.418789][  T498] Modules linked in:
| [   36.419267][  T498] Tainted: [W]=WARN
[   36.419420][  T498] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   36.419632][  T498] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   36.419854][  T498] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   36.420424][  T498] RSP: 0018:ffa00000015b7020 EFLAGS: 00010286
[   36.420654][  T498] RAX: 00000000ffffffa6 RBX: ff1100000d1a2200 RCX: 1ff40000002b6dca
[   36.420919][  T498] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d1a22bc
[   36.421201][  T498] RBP: ff110000024ec000 R08: 1fe2200001a34459 R09: ff1100000f778b58
[   36.421473][  T498] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[   36.421732][  T498] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   36.421993][  T498] FS:  00007fa882cfb840(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   36.422300][  T498] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.422529][  T498] CR2: 000000002af04988 CR3: 000000000e36b004 CR4: 0000000000771ef0
[   36.422783][  T498] PKRU: 55555554
[   36.422931][  T498] Call Trace:
[   36.423079][  T498]  <TASK>
[   36.423210][  T498]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   36.423404][  T498]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   36.423558][  T498]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   36.423743][  T498]  __dev_notify_flags (net/core/dev.c:9787)
[   36.423927][  T498]  ? netif_change_name (net/core/dev.c:1495)
[   36.424104][  T498]  ? __dev_change_flags (net/core/dev.c:9752)
[   36.424293][  T498]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   36.424488][  T498]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.424680][  T498]  ? 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))
[   36.424875][  T498]  netif_change_flags (net/core/dev.c:9820)
[   36.425067][  T498]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   36.425275][  T498]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   36.425541][  T498]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   36.425727][  T498]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   36.425963][  T498]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   36.426160][  T498]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   36.426339][  T498]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   36.426522][  T498]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   36.426701][  T498]  ? __kernel_text_address (kernel/extable.c:79)
[   36.426880][  T498]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   36.427086][  T498]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.427280][  T498]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   36.427469][  T498]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.427649][  T498]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   36.427832][  T498]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.428024][  T498]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.428229][  T498]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   36.428424][  T498]  ? __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)
[   36.428617][  T498]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   36.428806][  T498]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   36.428993][  T498]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   36.429194][  T498]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   36.429391][  T498]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   36.429577][  T498]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.429759][  T498]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   36.429941][  T498]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   36.430120][  T498]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   36.430310][  T498]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.430507][  T498]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.430695][  T498]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   36.430885][  T498]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   36.431072][  T498]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.431273][  T498]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   36.431470][  T498]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   36.431663][  T498]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   36.431853][  T498]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   36.432043][  T498]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   36.432246][  T498]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.432440][  T498]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   36.432629][  T498]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   36.432816][  T498]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   36.433002][  T498]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   36.433205][  T498]  ? 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))
[   36.433396][  T498]  ? 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))
[   36.433587][  T498]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   36.433776][  T498]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   36.433965][  T498]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   36.434165][  T498]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   36.434352][  T498]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   36.434545][  T498]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   36.434733][  T498]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   36.434916][  T498]  ? copy_msghdr_from_user (net/socket.c:2635)
[   36.435094][  T498]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   36.435315][  T498]  ? move_addr_to_kernel (net/socket.c:258)
[   36.435503][  T498]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   36.435714][  T498]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   36.435895][  T498]  ___sys_sendmsg (net/socket.c:2752)
[   36.436094][  T498]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   36.436321][  T498]  ? copy_msghdr_from_user (net/socket.c:2603)
[   36.436523][  T498]  __sys_sendmsg (net/socket.c:2784)
[   36.436701][  T498]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   36.436878][  T498]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   36.437091][  T498]  ? 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)
[   36.437282][  T498]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.437586][  T498]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   36.437773][  T498]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   36.437960][  T498]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   36.438161][  T498]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   36.438385][  T498] RIP: 0033:0x7fa882f3508e
[   36.438575][  T498] 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
[   36.439094][  T498] RSP: 002b:00007ffd40531fe0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   36.439382][  T498] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fa882f3508e
[   36.439643][  T498] RDX: 0000000000000000 RSI: 00007ffd40532090 RDI: 0000000000000005
[   36.439902][  T498] RBP: 00007ffd40531ff0 R08: 0000000000000000 R09: 0000000000000000
[   36.440175][  T498] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ea2e
[   36.440444][  T498] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd40532768
| [   36.443172][   T60] ------------[ cut here ]------------
| [   36.443348][   T60] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/60
| [   36.443662][   T60] Modules linked in:
| [   36.444669][   T60] Tainted: [W]=WARN
[   36.444814][   T60] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   36.445035][   T60] Workqueue: events_unbound linkwatch_event
[   36.445278][   T60] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   36.445499][   T60] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   36.446007][   T60] RSP: 0018:ffa000000040f9e0 EFLAGS: 00010286
[   36.446225][   T60] RAX: 00000000ffffffa6 RBX: ff1100000d1a2c80 RCX: 1ff4000000081f02
[   36.446472][   T60] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d1a2d3c
[   36.446713][   T60] RBP: ff1100000591c000 R08: 1fe2200001a345a9 R09: ff110000052ad1a8
[   36.446956][   T60] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000000
[   36.447212][   T60] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   36.447456][   T60] FS:  0000000000000000(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   36.447732][   T60] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.447945][   T60] CR2: 000000002af04988 CR3: 000000003c54d006 CR4: 0000000000771ef0
[   36.448203][   T60] PKRU: 55555554
[   36.448349][   T60] Call Trace:
[   36.448559][   T60]  <TASK>
[   36.448672][   T60]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   36.448851][   T60]  ? notifier_call_chain (kernel/notifier.c:85)
[   36.449030][   T60]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   36.449191][   T60]  netif_state_change (net/core/dev.c:1605)
[   36.449369][   T60]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[   36.449583][   T60]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[   36.449756][   T60]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   36.449926][   T60]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   36.450099][   T60]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   36.450287][   T60]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   36.450463][   T60]  process_one_work (kernel/workqueue.c:3314)
[   36.450636][   T60]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   36.450801][   T60]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.450971][   T60]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   36.451138][   T60]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   36.451316][   T60]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   36.451491][   T60]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   36.451682][   T60]  kthread (kernel/kthread.c:436)
[   36.451825][   T60]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   36.452022][   T60]  ? kthread_affine_node (kernel/kthread.c:378)
[   36.452221][   T60]  ret_from_fork (arch/x86/kernel/process.c:158)
[   36.452400][   T60]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   36.452598][   T60]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   36.452765][   T60]  ? kthread_affine_node (kernel/kthread.c:378)
[   36.452934][   T60]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   37.387666][   T60] ------------[ cut here ]------------
| [   37.387909][   T60] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/60
| [   37.388233][   T60] Modules linked in:
| [   37.388718][   T60] Tainted: [W]=WARN
[   37.388860][   T60] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   37.389068][   T60] Workqueue: events_unbound linkwatch_event
[   37.389296][   T60] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   37.389517][   T60] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   37.390004][   T60] RSP: 0018:ffa000000040f9e0 EFLAGS: 00010286
[   37.390239][   T60] RAX: 00000000ffffffa6 RBX: ff11000009066580 RCX: 1ff4000000081f02
[   37.390478][   T60] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000906663c
[   37.390706][   T60] RBP: ff110000024ec000 R08: 1fe220000120ccc9 R09: ff110000052ad1a8
[   37.390937][   T60] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000000
[   37.391181][   T60] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   37.391430][   T60] FS:  0000000000000000(0000) GS:ff110000b3bc7000(0000) knlGS:0000000000000000
[   37.391690][   T60] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   37.391891][   T60] CR2: 00007f8883032808 CR3: 000000003c54d006 CR4: 0000000000771ef0
[   37.392121][   T60] PKRU: 55555554
[   37.392274][   T60] Call Trace:
[   37.392422][   T60]  <TASK>
[   37.392536][   T60]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   37.392710][   T60]  ? notifier_call_chain (kernel/notifier.c:85)
[   37.392884][   T60]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   37.393027][   T60]  netif_state_change (net/core/dev.c:1605)
[   37.393216][   T60]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[   37.393427][   T60]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[   37.393600][   T60]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   37.393774][   T60]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   37.393947][   T60]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   37.394121][   T60]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   37.394307][   T60]  process_one_work (kernel/workqueue.c:3314)
[   37.394490][   T60]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   37.394665][   T60]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   37.394843][   T60]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   37.395016][   T60]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   37.395200][   T60]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   37.395381][   T60]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   37.395552][   T60]  kthread (kernel/kthread.c:436)
[   37.395691][   T60]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   37.395891][   T60]  ? kthread_affine_node (kernel/kthread.c:378)
[   37.396062][   T60]  ret_from_fork (arch/x86/kernel/process.c:158)
[   37.396249][   T60]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   37.396455][   T60]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   37.396627][   T60]  ? kthread_affine_node (kernel/kthread.c:378)
[   37.396796][   T60]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   38.951901][   T12] ------------[ cut here ]------------
| [   38.952074][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   38.952340][   T12] Modules linked in:
| [   38.952730][   T12] Tainted: [W]=WARN
[   38.952824][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   38.952977][   T12] Workqueue: netns cleanup_net
[   38.953108][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   38.953333][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   38.953839][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   38.953995][   T12] RAX: 00000000ffffffa6 RBX: ff1100000d03f000 RCX: 1ff4000000018eed
[   38.954232][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d03f0bc
[   38.954421][   T12] RBP: ff110000020bc000 R08: 1fe2200001a07e19 R09: ff11000001aed1d0
[   38.954602][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   38.954787][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   38.954971][   T12] FS:  0000000000000000(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   38.955215][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   38.955370][   T12] CR2: 000055cac4453ae8 CR3: 000000000e234002 CR4: 0000000000771ef0
[   38.955562][   T12] PKRU: 55555554
[   38.955654][   T12] Call Trace:
[   38.955748][   T12]  <TASK>
[   38.955813][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   38.955973][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   38.956124][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   38.956257][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   38.956386][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   38.956508][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   38.956631][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   38.956756][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   38.956885][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   38.957006][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   38.957150][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   38.957283][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   38.957415][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   38.957539][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   38.957662][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   38.957788][   T12]  process_one_work (kernel/workqueue.c:3314)
[   38.957915][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   38.958036][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   38.958170][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   38.958297][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   38.958421][   T12]  kthread (kernel/kthread.c:436)
[   38.958515][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   38.958670][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   38.958803][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   38.958927][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   38.959079][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   38.959214][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   38.959336][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   38.961626][   T12] ------------[ cut here ]------------
| [   38.961758][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   38.961998][   T12] Modules linked in:
| [   38.962458][   T12] Tainted: [W]=WARN
[   38.962551][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   38.962706][   T12] Workqueue: netns cleanup_net
[   38.962839][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   38.962995][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   38.963456][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   38.963610][   T12] RAX: 00000000ffffffa6 RBX: ff1100000ff21700 RCX: 1ff4000000018eed
[   38.963790][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ff217bc
[   38.963970][   T12] RBP: ff1100000ffc9000 R08: 1fe2200001fe42f9 R09: ff11000001aed1d0
[   38.964154][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   38.964336][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   38.964521][   T12] FS:  0000000000000000(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   38.964731][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   38.964883][   T12] CR2: 000055cac4453ae8 CR3: 000000000e234002 CR4: 0000000000771ef0
[   38.965065][   T12] PKRU: 55555554
[   38.965163][   T12] Call Trace:
[   38.965263][   T12]  <TASK>
[   38.965326][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   38.965494][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   38.965642][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   38.965764][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   38.965887][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   38.966008][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   38.966133][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   38.966263][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   38.966390][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   38.966512][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   38.966637][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   38.966757][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   38.966879][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   38.967001][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   38.967123][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   38.967252][   T12]  process_one_work (kernel/workqueue.c:3314)
[   38.967378][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   38.967504][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   38.967630][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   38.967756][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   38.967878][   T12]  kthread (kernel/kthread.c:436)
[   38.967971][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   38.968123][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   38.968247][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   38.968369][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   38.968523][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   38.968644][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   38.968766][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   38.970978][   T12] ------------[ cut here ]------------
| [   38.971108][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   38.971411][   T12] Modules linked in:
| [   38.971776][   T12] Tainted: [W]=WARN
[   38.971867][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   38.972017][   T12] Workqueue: netns cleanup_net
[   38.972214][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   38.972376][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   38.972816][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   38.972968][   T12] RAX: 00000000ffffffa6 RBX: ff1100000ff21e00 RCX: 1ff4000000018eed
[   38.973228][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ff21ebc
[   38.973415][   T12] RBP: ff1100001003c000 R08: 1fe2200001fe43d9 R09: ff11000001aed1d0
[   38.973645][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   38.973832][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   38.974013][   T12] FS:  0000000000000000(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   38.974270][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   38.974427][   T12] CR2: 000055cac4453ae8 CR3: 000000000e234002 CR4: 0000000000771ef0
[   38.974615][   T12] PKRU: 55555554
[   38.974705][   T12] Call Trace:
[   38.974795][   T12]  <TASK>
[   38.974858][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   38.975016][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   38.975212][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   38.975334][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   38.975460][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   38.975581][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   38.975703][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   38.975828][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   38.975951][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   38.976073][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   38.976245][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   38.976367][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   38.976493][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   38.976615][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   38.976737][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   38.976901][   T12]  process_one_work (kernel/workqueue.c:3314)
[   38.977041][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   38.977221][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   38.977458][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   38.977609][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   38.977737][   T12]  kthread (kernel/kthread.c:436)
[   38.977836][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   38.978006][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   38.978139][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   38.978374][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   38.978542][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   38.978674][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   38.978801][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   38.987081][   T12] ------------[ cut here ]------------
| [   38.987233][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   38.987501][   T12] Modules linked in:
| [   38.987906][   T12] Tainted: [W]=WARN
[   38.988005][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   38.988179][   T12] Workqueue: netns cleanup_net
[   38.988317][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   38.988490][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   38.988952][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   38.989120][   T12] RAX: 00000000ffffffa6 RBX: ff110000026ea200 RCX: 1ff4000000018eed
[   38.989321][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000026ea2bc
[   38.989521][   T12] RBP: ff1100000f549000 R08: 1fe22000004dd459 R09: ff11000001aed1d0
[   38.989716][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   38.989914][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   38.990109][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   38.990356][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   38.990527][   T12] CR2: 000055cac4457d5c CR3: 000000000a2c9001 CR4: 0000000000771ef0
[   38.990722][   T12] PKRU: 55555554
[   38.990820][   T12] Call Trace:
[   38.990918][   T12]  <TASK>
[   38.990987][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   38.991159][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   38.991318][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   38.991455][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   38.991588][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   38.991717][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   38.991849][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   38.991983][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   38.992118][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   38.992251][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   38.992390][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   38.992525][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   38.992656][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   38.992787][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   38.992922][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   38.993057][   T12]  process_one_work (kernel/workqueue.c:3314)
[   38.993198][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   38.993329][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   38.993470][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   38.993608][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   38.993739][   T12]  kthread (kernel/kthread.c:436)
[   38.993838][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   38.994010][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   38.994151][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   38.994283][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   38.994452][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   38.994585][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   38.994718][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   38.996842][   T12] ------------[ cut here ]------------
| [   38.996975][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   38.998002][   T12] Modules linked in:
| [   38.998413][   T12] Tainted: [W]=WARN
[   38.998513][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   38.998677][   T12] Workqueue: netns cleanup_net
[   38.998815][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   38.998985][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   38.999491][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   38.999653][   T12] RAX: 00000000ffffffa6 RBX: ff110000060beac0 RCX: 1ff4000000018eed
[   38.999848][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000060beb7c
[   39.000042][   T12] RBP: ff11000009541000 R08: 1fe2200000c17d71 R09: ff11000001aed1d0
[   39.000244][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   39.000445][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   39.000638][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   39.000869][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   39.001040][   T12] CR2: 000055cac4457d5c CR3: 000000000a2c9001 CR4: 0000000000771ef0
[   39.001250][   T12] PKRU: 55555554
[   39.001349][   T12] Call Trace:
[   39.001453][   T12]  <TASK>
[   39.001522][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   39.001688][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   39.001852][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   39.001984][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   39.002118][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   39.002255][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   39.002390][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   39.002524][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   39.002653][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   39.002784][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   39.002917][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   39.003048][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   39.003189][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   39.003320][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   39.003454][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   39.003586][   T12]  process_one_work (kernel/workqueue.c:3314)
[   39.003720][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   39.003849][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   39.003984][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   39.004119][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   39.004252][   T12]  kthread (kernel/kthread.c:436)
[   39.004349][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   39.004515][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.004645][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   39.004777][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   39.004940][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   39.005072][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.005211][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   39.025548][   T12] ------------[ cut here ]------------
| [   39.025712][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   39.025976][   T12] Modules linked in:
| [   39.026393][   T12] Tainted: [W]=WARN
[   39.026492][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   39.026662][   T12] Workqueue: netns cleanup_net
[   39.026803][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   39.026974][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   39.027459][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   39.027630][   T12] RAX: 00000000ffffffa6 RBX: ff110000060be580 RCX: 1ff4000000018eaf
[   39.027821][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000060be63c
[   39.028013][   T12] RBP: ff110000024ec000 R08: 1fe2200000c17cc9 R09: ff11000001aed1d0
[   39.028218][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[   39.028416][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000591c000
[   39.028612][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   39.028839][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   39.029002][   T12] CR2: 00007feb83a55000 CR3: 000000003c54d005 CR4: 0000000000771ef0
[   39.029209][   T12] PKRU: 55555554
[   39.029308][   T12] Call Trace:
[   39.029412][   T12]  <TASK>
[   39.029480][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   39.029616][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   39.029715][   T12]  netif_close_many (net/core/dev.c:1804)
[   39.029846][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   39.029976][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   39.030107][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   39.030244][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   39.030377][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   39.030546][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   39.030709][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   39.030841][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   39.031005][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   39.031133][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   39.031267][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   39.031439][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   39.031573][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   39.031706][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   39.031835][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   39.031965][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   39.032100][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   39.032239][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   39.032370][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   39.032510][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   39.032640][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   39.032769][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   39.032900][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   39.033029][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   39.033166][   T12]  process_one_work (kernel/workqueue.c:3314)
[   39.033299][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   39.033484][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   39.033617][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   39.033751][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   39.033880][   T12]  kthread (kernel/kthread.c:436)
[   39.033977][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   39.034138][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.034275][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   39.034417][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   39.034577][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   39.034707][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.034838][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   39.037162][   T12] ------------[ cut here ]------------
| [   39.037292][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   39.037548][   T12] Modules linked in:
| [   39.037938][   T12] Tainted: [W]=WARN
[   39.038034][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   39.038203][   T12] Workqueue: netns cleanup_net
[   39.038337][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   39.038513][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   39.038979][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   39.039148][   T12] RAX: 00000000ffffffa6 RBX: ff1100000d1a2740 RCX: 1ff4000000018eaf
[   39.039341][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d1a27fc
[   39.039540][   T12] RBP: ff1100000591c000 R08: 1fe2200001a34501 R09: ff11000001aed1d0
[   39.039735][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[   39.039928][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f311000
[   39.040122][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   39.040352][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   39.040520][   T12] CR2: 00007feb83a55000 CR3: 000000003c54d005 CR4: 0000000000771ef0
[   39.040713][   T12] PKRU: 55555554
[   39.040809][   T12] Call Trace:
[   39.040905][   T12]  <TASK>
[   39.040972][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   39.041101][   T12]  ? notifier_call_chain (kernel/notifier.c:85)
[   39.041237][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   39.041336][   T12]  netif_close_many (net/core/dev.c:1804)
[   39.041473][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   39.041602][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   39.041730][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   39.041860][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   39.041990][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   39.042157][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   39.042319][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   39.042455][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   39.042617][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   39.042745][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   39.042872][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   39.043032][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   39.043170][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   39.043302][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   39.043439][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   39.043571][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   39.043702][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   39.043833][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   39.043961][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   39.044094][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   39.044236][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   39.044364][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   39.044502][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   39.044630][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   39.044760][   T12]  process_one_work (kernel/workqueue.c:3314)
[   39.044894][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   39.045022][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   39.045160][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   39.045295][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   39.045428][   T12]  kthread (kernel/kthread.c:436)
[   39.045527][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   39.045686][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.045815][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   39.045947][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   39.046109][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   39.046246][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.046378][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   39.048979][   T12] ------------[ cut here ]------------
| [   39.049115][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   39.049376][   T12] Modules linked in:
| [   39.049780][   T12] Tainted: [W]=WARN
[   39.049877][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   39.050039][   T12] Workqueue: netns cleanup_net
[   39.050179][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   39.050350][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   39.050820][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   39.050984][   T12] RAX: 00000000ffffffa6 RBX: ff1100000b8f6ac0 RCX: 1ff4000000018eaf
[   39.051186][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b8f6b7c
[   39.051384][   T12] RBP: ff1100000f311000 R08: 1fe220000171ed71 R09: ff11000001aed1d0
[   39.051579][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[   39.051770][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000000c77e0
[   39.051965][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   39.052202][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   39.052362][   T12] CR2: 00007feb83a55000 CR3: 000000003c54d005 CR4: 0000000000771ef0
[   39.052560][   T12] PKRU: 55555554
[   39.052656][   T12] Call Trace:
[   39.052753][   T12]  <TASK>
[   39.052819][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   39.052949][   T12]  ? notifier_call_chain (kernel/notifier.c:85)
[   39.053078][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   39.053183][   T12]  netif_close_many (net/core/dev.c:1804)
[   39.053311][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   39.053443][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   39.053570][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   39.053698][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   39.053829][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   39.053991][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   39.054158][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   39.054287][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   39.054453][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   39.054580][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   39.054707][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   39.054869][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   39.055001][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   39.055130][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   39.055266][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   39.055398][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   39.055529][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   39.055659][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   39.055786][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   39.055921][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   39.056049][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   39.056182][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   39.056314][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   39.056447][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   39.056576][   T12]  process_one_work (kernel/workqueue.c:3314)
[   39.056710][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   39.056839][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   39.056971][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   39.057105][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   39.057239][   T12]  kthread (kernel/kthread.c:436)
[   39.057335][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   39.057500][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.057629][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   39.057762][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   39.057921][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   39.058050][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.058184][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   39.060590][   T12] ------------[ cut here ]------------
| [   39.060724][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   39.060980][   T12] Modules linked in:
| [   39.062923][   T12] Tainted: [W]=WARN
[   39.063018][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   39.063244][   T12] Workqueue: netns cleanup_net
[   39.063376][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   39.063567][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   39.064053][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   39.064302][   T12] RAX: 00000000ffffffa6 RBX: ff1100000b8f7700 RCX: 1ff4000000018ed5
[   39.064506][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b8f77bc
[   39.064753][   T12] RBP: ff110000024ec000 R08: 1fe220000171eef9 R09: ff11000001aed1d0
[   39.064952][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   39.065198][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   39.065398][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   39.065694][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   39.065849][   T12] CR2: 00007feb83a55000 CR3: 000000003c54d005 CR4: 0000000000771ef0
[   39.066111][   T12] PKRU: 55555554
[   39.066253][   T12] Call Trace:
[   39.066346][   T12]  <TASK>
[   39.066417][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   39.066573][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   39.066726][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   39.066847][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   39.066971][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   39.067126][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   39.067299][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   39.067425][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   39.067549][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   39.067672][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   39.067871][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   39.067995][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   39.068122][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   39.068294][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   39.068422][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   39.068546][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   39.068667][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   39.068940][   T12]  process_one_work (kernel/workqueue.c:3314)
[   39.069066][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   39.069238][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   39.069366][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   39.069498][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   39.069621][   T12]  kthread (kernel/kthread.c:436)
[   39.069713][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   39.069865][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.069988][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   39.070113][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   39.070319][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   39.070447][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.070578][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   39.082517][   T12] ------------[ cut here ]------------
| [   39.082666][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   39.082911][   T12] Modules linked in:
| [   39.083292][   T12] Tainted: [W]=WARN
[   39.083391][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   39.083544][   T12] Workqueue: netns cleanup_net
[   39.083674][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   39.083835][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   39.084287][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   39.084452][   T12] RAX: 00000000ffffffa6 RBX: ff1100000a2e18c0 RCX: 1ff4000000018ed5
[   39.084638][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a2e197c
[   39.084821][   T12] RBP: ff1100000591c000 R08: 1fe220000145c331 R09: ff11000001aed1d0
[   39.085002][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   39.085187][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   39.085403][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   39.085617][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   39.085771][   T12] CR2: 00007feb83a55000 CR3: 000000003c54d005 CR4: 0000000000771ef0
[   39.085954][   T12] PKRU: 55555554
[   39.086046][   T12] Call Trace:
[   39.086139][   T12]  <TASK>
[   39.086210][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   39.086367][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   39.086523][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   39.086644][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   39.086766][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   39.086926][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   39.087050][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   39.087181][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   39.087304][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   39.087460][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   39.087589][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   39.087712][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   39.087839][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   39.087963][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   39.088088][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   39.088215][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   39.088333][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   39.088460][   T12]  process_one_work (kernel/workqueue.c:3314)
[   39.088588][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   39.088706][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   39.088830][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   39.088954][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   39.089074][   T12]  kthread (kernel/kthread.c:436)
[   39.089170][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   39.089320][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.089452][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   39.089580][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   39.089734][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   39.089858][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.089983][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   39.092434][   T12] ------------[ cut here ]------------
| [   39.092566][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   39.092807][   T12] Modules linked in:
| [   39.093188][   T12] Tainted: [W]=WARN
[   39.093281][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   39.093437][   T12] Workqueue: netns cleanup_net
[   39.093565][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   39.093723][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   39.094165][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   39.094320][   T12] RAX: 00000000ffffffa6 RBX: ff11000010374200 RCX: 1ff4000000018ed5
[   39.094510][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000103742bc
[   39.094699][   T12] RBP: ff1100000f311000 R08: 1fe220000206e859 R09: ff11000001aed1d0
[   39.094883][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   39.095066][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   39.095262][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   39.095489][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   39.095643][   T12] CR2: 00007feb83a55000 CR3: 000000003c54d005 CR4: 0000000000771ef0
[   39.095829][   T12] PKRU: 55555554
[   39.095923][   T12] Call Trace:
[   39.096017][   T12]  <TASK>
[   39.096081][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   39.096245][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   39.096406][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   39.096529][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   39.096652][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   39.096820][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   39.096945][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   39.097071][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   39.097205][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   39.097339][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   39.097471][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   39.097594][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   39.097721][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   39.097847][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   39.097974][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   39.098101][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   39.098231][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   39.098357][   T12]  process_one_work (kernel/workqueue.c:3314)
[   39.098488][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   39.098612][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   39.098741][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   39.098872][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   39.098999][   T12]  kthread (kernel/kthread.c:436)
[   39.099092][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   39.099250][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.099375][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   39.099506][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   39.099661][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   39.099784][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.099911][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   39.155417][   T12] ------------[ cut here ]------------
| [   39.155576][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   39.155818][   T12] Modules linked in:
| [   39.156198][   T12] Tainted: [W]=WARN
[   39.156294][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   39.156466][   T12] Workqueue: netns cleanup_net
[   39.156594][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   39.156757][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   39.157196][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   39.157350][   T12] RAX: 00000000ffffffa6 RBX: ff11000010375000 RCX: 1ff4000000018eed
[   39.157536][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000103750bc
[   39.157719][   T12] RBP: ff1100000f15c000 R08: 1fe220000206ea19 R09: ff11000001aed1d0
[   39.157902][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   39.158084][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   39.158272][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   39.158489][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   39.158644][   T12] CR2: 00007feb83a55000 CR3: 000000003c54d005 CR4: 0000000000771ef0
[   39.158844][   T12] PKRU: 55555554
[   39.158936][   T12] Call Trace:
[   39.159032][   T12]  <TASK>
[   39.159096][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   39.159259][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   39.159416][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   39.159539][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   39.159664][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   39.159785][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   39.159908][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   39.160032][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   39.160254][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   39.160375][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   39.160509][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   39.160640][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   39.160759][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   39.160881][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   39.161002][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   39.161126][   T12]  process_one_work (kernel/workqueue.c:3314)
[   39.161260][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   39.161386][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   39.161519][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   39.161644][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   39.161765][   T12]  kthread (kernel/kthread.c:436)
[   39.161857][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   39.162009][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.162133][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   39.162267][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   39.162423][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   39.162545][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.162668][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   39.164884][   T12] ------------[ cut here ]------------
| [   39.165013][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   39.165256][   T12] Modules linked in:
| [   39.165622][   T12] Tainted: [W]=WARN
[   39.165714][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   39.165865][   T12] Workqueue: netns cleanup_net
[   39.165990][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   39.166153][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   39.166587][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   39.166741][   T12] RAX: 00000000ffffffa6 RBX: ff11000010375700 RCX: 1ff4000000018eed
[   39.166921][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000103757bc
[   39.167105][   T12] RBP: ff1100000fcf1000 R08: 1fe220000206eaf9 R09: ff11000001aed1d0
[   39.167290][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   39.167488][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   39.167671][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   39.167883][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   39.168034][   T12] CR2: 00007feb83a55000 CR3: 000000003c54d005 CR4: 0000000000771ef0
[   39.168220][   T12] PKRU: 55555554
[   39.168309][   T12] Call Trace:
[   39.168407][   T12]  <TASK>
[   39.168472][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   39.168627][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   39.168777][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   39.168900][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   39.169022][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   39.169146][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   39.169268][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   39.169397][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   39.169520][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   39.169646][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   39.169770][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   39.169891][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   39.170010][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   39.170132][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   39.170537][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   39.170669][   T12]  process_one_work (kernel/workqueue.c:3314)
[   39.170793][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   39.170915][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   39.171040][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   39.171170][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   39.171292][   T12]  kthread (kernel/kthread.c:436)
[   39.171390][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   39.171542][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.171663][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   39.171783][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   39.171939][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   39.172060][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.172196][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   39.174378][   T12] ------------[ cut here ]------------
| [   39.174505][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   39.174744][   T12] Modules linked in:
| [   39.175107][   T12] Tainted: [W]=WARN
[   39.175204][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   39.175359][   T12] Workqueue: netns cleanup_net
[   39.175485][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   39.175641][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   39.176082][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   39.176240][   T12] RAX: 00000000ffffffa6 RBX: ff11000010375e00 RCX: 1ff4000000018eed
[   39.176424][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000010375ebc
[   39.176605][   T12] RBP: ff1100000e461000 R08: 1fe220000206ebd9 R09: ff11000001aed1d0
[   39.176793][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   39.176973][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   39.177157][   T12] FS:  0000000000000000(0000) GS:ff110000b3ac7000(0000) knlGS:0000000000000000
[   39.177403][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   39.177556][   T12] CR2: 00007feb83a55000 CR3: 000000003c54d005 CR4: 0000000000771ef0
[   39.177737][   T12] PKRU: 55555554
[   39.177827][   T12] Call Trace:
[   39.177916][   T12]  <TASK>
[   39.177980][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   39.178134][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   39.178298][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   39.178425][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   39.178547][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   39.178674][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   39.178797][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   39.178923][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   39.179046][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   39.179202][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   39.179325][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   39.179453][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   39.179573][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   39.179695][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   39.179816][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   39.179939][   T12]  process_one_work (kernel/workqueue.c:3314)
[   39.180064][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   39.180235][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   39.180364][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   39.180547][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   39.180668][   T12]  kthread (kernel/kthread.c:436)
[   39.180763][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   39.180913][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.181033][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   39.181205][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   39.181355][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   39.181481][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.181606][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   39.183916][   T12] ------------[ cut here ]------------
| [   39.184055][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   39.184306][   T12] Modules linked in:
| [   39.184685][   T12] Tainted: [W]=WARN
[   39.184777][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   39.184929][   T12] Workqueue: netns cleanup_net
[   39.185056][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   39.185217][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   39.185652][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   39.185807][   T12] RAX: 00000000ffffffa6 RBX: ff1100000ff20040 RCX: 1ff4000000018eed
[   39.185987][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ff200fc
[   39.186171][   T12] RBP: ff1100001032c000 R08: 1fe2200001fe4021 R09: ff11000001aed1d0
[   39.186351][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   39.186536][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   39.186721][   T12] FS:  0000000000000000(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   39.186935][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   39.187091][   T12] CR2: 00007f24afb449dc CR3: 000000003c54d001 CR4: 0000000000771ef0
[   39.187279][   T12] PKRU: 55555554
[   39.187371][   T12] Call Trace:
[   39.187469][   T12]  <TASK>
[   39.187533][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   39.187692][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   39.187847][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   39.187967][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   39.188089][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   39.188213][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   39.188335][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   39.188468][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   39.188594][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   39.188715][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   39.188841][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   39.188963][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   39.189084][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   39.189213][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   39.189334][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   39.189461][   T12]  process_one_work (kernel/workqueue.c:3314)
[   39.189587][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   39.189709][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   39.189835][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   39.189965][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   39.190087][   T12]  kthread (kernel/kthread.c:436)
[   39.190184][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   39.190334][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.190464][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   39.190586][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   39.190737][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   39.190860][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.190981][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   39.198007][   T12] ------------[ cut here ]------------
| [   39.198148][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   39.198395][   T12] Modules linked in:
| [   39.198765][   T12] Tainted: [W]=WARN
[   39.198857][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   39.199008][   T12] Workqueue: netns cleanup_net
[   39.199137][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   39.200169][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   39.200633][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   39.200786][   T12] RAX: 00000000ffffffa6 RBX: ff1100000ff203c0 RCX: 1ff4000000018eed
[   39.200973][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ff2047c
[   39.201164][   T12] RBP: ff1100000e329000 R08: 1fe2200001fe4091 R09: ff11000001aed1d0
[   39.201347][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   39.201539][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   39.201722][   T12] FS:  0000000000000000(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   39.201935][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   39.202090][   T12] CR2: 00007f24afb449dc CR3: 000000003c54d001 CR4: 0000000000771ef0
[   39.202275][   T12] PKRU: 55555554
[   39.202366][   T12] Call Trace:
[   39.202466][   T12]  <TASK>
[   39.202531][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   39.202687][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   39.202836][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   39.202959][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   39.203082][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   39.203208][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   39.203330][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   39.203457][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   39.203581][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   39.203703][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   39.203828][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   39.203953][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   39.204074][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   39.204203][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   39.204323][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   39.204453][   T12]  process_one_work (kernel/workqueue.c:3314)
[   39.204578][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   39.204698][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   39.204827][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   39.204954][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   39.205077][   T12]  kthread (kernel/kthread.c:436)
[   39.205174][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   39.205331][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.205457][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   39.205580][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   39.205733][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   39.205854][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.205974][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   39.220791][   T12] ------------[ cut here ]------------
| [   39.220954][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   39.221214][   T12] Modules linked in:
| [   39.221611][   T12] Tainted: [W]=WARN
[   39.221710][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   39.221874][   T12] Workqueue: netns cleanup_net
[   39.222010][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   39.222186][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   39.222657][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   39.222816][   T12] RAX: 00000000ffffffa6 RBX: ff1100000ff20740 RCX: 1ff4000000018eaf
[   39.223006][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ff207fc
[   39.223203][   T12] RBP: ff11000009301000 R08: 1fe2200001fe4101 R09: ff11000001aed1d0
[   39.223398][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000041
[   39.223589][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000000c77e0
[   39.223779][   T12] FS:  0000000000000000(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   39.224002][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   39.224168][   T12] CR2: 00007f24afb449dc CR3: 000000003c54d001 CR4: 0000000000771ef0
[   39.224362][   T12] PKRU: 55555554
[   39.224463][   T12] Call Trace:
[   39.224558][   T12]  <TASK>
[   39.224625][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   39.224754][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   39.224852][   T12]  netif_close_many (net/core/dev.c:1804)
[   39.224981][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   39.225106][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   39.225242][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   39.225371][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   39.225503][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   39.225663][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   39.225825][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   39.225952][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   39.226080][   T12]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   39.226215][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   39.226378][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   39.226513][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   39.226642][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   39.226770][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   39.226898][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   39.227029][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   39.227166][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   39.227297][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   39.227431][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   39.227560][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   39.227685][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   39.227812][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   39.227940][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   39.228070][   T12]  process_one_work (kernel/workqueue.c:3314)
[   39.228264][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   39.228399][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   39.228534][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   39.228666][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   39.228794][   T12]  kthread (kernel/kthread.c:436)
[   39.228891][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   39.229050][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.229235][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   39.229366][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   39.229529][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   39.229656][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.229785][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   39.232254][   T12] ------------[ cut here ]------------
| [   39.232396][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   39.232644][   T12] Modules linked in:
| [   39.233018][   T12] Tainted: [W]=WARN
[   39.233113][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   39.233276][   T12] Workqueue: netns cleanup_net
[   39.233412][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   39.233572][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   39.234018][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   39.234180][   T12] RAX: 00000000ffffffa6 RBX: ff1100000a2e0740 RCX: 1ff4000000018ed5
[   39.234364][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a2e07fc
[   39.234554][   T12] RBP: ff11000009301000 R08: 1fe220000145c101 R09: ff11000001aed1d0
[   39.234740][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   39.234923][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   39.235109][   T12] FS:  0000000000000000(0000) GS:ff110000b3b47000(0000) knlGS:0000000000000000
[   39.235331][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   39.235490][   T12] CR2: 00007f24afb449dc CR3: 000000003c54d001 CR4: 0000000000771ef0
[   39.235674][   T12] PKRU: 55555554
[   39.235767][   T12] Call Trace:
[   39.235857][   T12]  <TASK>
[   39.235921][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   39.236076][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   39.236236][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   39.236364][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   39.236495][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   39.236619][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   39.236742][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   39.236866][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   39.236990][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   39.237112][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   39.237246][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   39.237373][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   39.237501][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   39.237626][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   39.237749][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   39.237872][   T12]  process_one_work (kernel/workqueue.c:3314)
[   39.237999][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   39.238122][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   39.238715][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   39.238848][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   39.238972][   T12]  kthread (kernel/kthread.c:436)
[   39.239065][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   39.239258][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.239389][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   39.239513][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   39.239668][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   39.239794][   T12]  ? kthread_affine_node (kernel/kthread.c:378)


Finger prints:
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:__dev_notify_flags:rtnl_configure_link:rtnl_newlink_create
rtmsg_ifinfo_build_skb:rtmsg_ifinfo: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: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