======================================
| xx__-> [    9.211946][  T193] ------------[ cut here ]------------
| [    9.212152][  T193] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/193
| [    9.212428][  T193] Modules linked in:
| [    9.212812][  T193] Tainted: [W]=WARN
[    9.212903][  T193] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.213104][  T193] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.213266][  T193] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.213705][  T193] RSP: 0018:ffa00000009a7a80 EFLAGS: 00010286
[    9.213858][  T193] RAX: 00000000ffffffa6 RBX: ff1100000b51be00 RCX: 1ff4000000134f16
[    9.214044][  T193] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b51bebc
[    9.214227][  T193] RBP: ff11000009264000 R08: 1fe22000016a37d9 R09: ff11000010230b80
[    9.214416][  T193] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    9.214596][  T193] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009264000
[    9.214776][  T193] FS:  00007fc822352840(0000) GS:ff110000d42c7000(0000) knlGS:0000000000000000
[    9.214995][  T193] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.215147][  T193] CR2: 0000000000479648 CR3: 000000000fa59002 CR4: 0000000000771ef0
[    9.215336][  T193] PKRU: 55555554
[    9.215429][  T193] Call Trace:
[    9.215521][  T193]  <TASK>
[    9.215586][  T193]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.215707][  T193]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.215830][  T193]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.215926][  T193]  register_netdevice (net/core/dev.c:11488)
[    9.216052][  T193]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.216202][  T193]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    9.216331][  T193]  register_netdev (net/core/dev.c:11552)
[    9.216451][  T193]  loopback_net_init (drivers/net/loopback.c:218)
[    9.216573][  T193]  ops_init (net/core/net_namespace.c:137)
[    9.216666][  T193]  setup_net (net/core/net_namespace.c:446)
[    9.216758][  T193]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.216878][  T193]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.217008][  T193]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.217133][  T193]  copy_net_ns (net/core/net_namespace.c:579)
[    9.217257][  T193]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.217385][  T193]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.217506][  T193]  ksys_unshare (kernel/fork.c:3243)
[    9.217627][  T193]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.217751][  T193]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.217872][  T193]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.218097][  T193]  ? __ia32_sys_open (fs/open.c:1374)
[    9.218219][  T193]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.218347][  T193]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.218468][  T193]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.218675][  T193]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.218796][  T193]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.218924][  T193]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.219078][  T193] RIP: 0033:0x7fc822614bcb
[    9.219300][  T193] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    9.219833][  T193] RSP: 002b:00007fff58faa588 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    9.220022][  T193] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fc822614bcb
[    9.220206][  T193] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.220393][  T193] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    9.220573][  T193] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fff58fac7b0
[    9.220759][  T193] R13: 0000000000000001 R14: 00007fc8223526f8 R15: 00007fff58fae888
| [    9.225651][  T193] ------------[ cut here ]------------
| [    9.225790][  T193] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/193
| [    9.226095][  T193] Modules linked in:
| [    9.226527][  T193] Tainted: [W]=WARN
[    9.226618][  T193] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.226768][  T193] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.226932][  T193] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.227463][  T193] RSP: 0018:ffa00000009a7918 EFLAGS: 00010286
[    9.227720][  T193] RAX: 00000000ffffffa6 RBX: ff1100000cf22e40 RCX: 1ff4000000134ee9
[    9.227902][  T193] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cf22efc
[    9.228086][  T193] RBP: ff1100000fd89000 R08: 1fe22000019e45e1 R09: ff11000010230b80
[    9.228359][  T193] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    9.228542][  T193] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fd89000
[    9.228723][  T193] FS:  00007fc822352840(0000) GS:ff110000d42c7000(0000) knlGS:0000000000000000
[    9.229029][  T193] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.229184][  T193] CR2: 0000000000479648 CR3: 000000000fa59002 CR4: 0000000000771ef0
[    9.229375][  T193] PKRU: 55555554
[    9.229467][  T193] Call Trace:
[    9.229556][  T193]  <TASK>
[    9.229620][  T193]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.229741][  T193]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.229953][  T193]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.230045][  T193]  register_netdevice (net/core/dev.c:11488)
[    9.230166][  T193]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.230319][  T193]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    9.230526][  T193]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[    9.230643][  T193]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[    9.230762][  T193]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[    9.230879][  T193]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[    9.231087][  T193]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[    9.231209][  T193]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[    9.231341][  T193]  ops_init (net/core/net_namespace.c:137)
[    9.231433][  T193]  setup_net (net/core/net_namespace.c:446)
[    9.231526][  T193]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.231729][  T193]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.231847][  T193]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.231971][  T193]  copy_net_ns (net/core/net_namespace.c:579)
[    9.232089][  T193]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.232297][  T193]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.232421][  T193]  ksys_unshare (kernel/fork.c:3243)
[    9.232537][  T193]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.232688][  T193]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.232896][  T193]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.233020][  T193]  ? __ia32_sys_open (fs/open.c:1374)
[    9.233140][  T193]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.233256][  T193]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.233466][  T193]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.233591][  T193]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.233707][  T193]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.233824][  T193]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.234059][  T193] RIP: 0033:0x7fc822614bcb
[    9.234186][  T193] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    9.234724][  T193] RSP: 002b:00007fff58faa588 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    9.234911][  T193] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fc822614bcb
[    9.235177][  T193] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.235355][  T193] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    9.235536][  T193] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fff58fac7b0
[    9.235807][  T193] R13: 0000000000000001 R14: 00007fc8223526f8 R15: 00007fff58fae888
| [    9.240124][  T193] ------------[ cut here ]------------
| [    9.240248][  T193] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/193
| [    9.240463][  T193] Modules linked in:
| [    9.240800][  T193] Tainted: [W]=WARN
[    9.240896][  T193] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.241049][  T193] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.241208][  T193] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.241710][  T193] RSP: 0018:ffa00000009a78f8 EFLAGS: 00010286
[    9.241861][  T193] RAX: 00000000ffffffa6 RBX: ff110000061efe00 RCX: 1ff4000000134ee5
[    9.242047][  T193] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000061efebc
[    9.242372][  T193] RBP: ff1100000a839000 R08: 1fe2200000c3dfd9 R09: ff11000010230b80
[    9.242551][  T193] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    9.242792][  T193] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a839000
[    9.242976][  T193] FS:  00007fc822352840(0000) GS:ff110000d42c7000(0000) knlGS:0000000000000000
[    9.243192][  T193] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.243402][  T193] CR2: 0000000000479648 CR3: 000000000fa59002 CR4: 0000000000771ef0
[    9.243588][  T193] PKRU: 55555554
[    9.243676][  T193] Call Trace:
[    9.243766][  T193]  <TASK>
[    9.243829][  T193]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.244043][  T193]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.244161][  T193]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.244258][  T193]  register_netdevice (net/core/dev.c:11488)
[    9.244441][  T193]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.244605][  T193]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    9.244725][  T193]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[    9.244936][  T193]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[    9.245057][  T193]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[    9.245181][  T193]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[    9.245302][  T193]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[    9.245512][  T193]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[    9.245633][  T193]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[    9.245755][  T193]  vti_init_net (net/ipv4/ip_vti.c:517)
[    9.245965][  T193]  ops_init (net/core/net_namespace.c:137)
[    9.246055][  T193]  setup_net (net/core/net_namespace.c:446)
[    9.246148][  T193]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.246265][  T193]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.246450][  T193]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.246572][  T193]  copy_net_ns (net/core/net_namespace.c:579)
[    9.246695][  T193]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.246819][  T193]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.246945][  T193]  ksys_unshare (kernel/fork.c:3243)
[    9.247066][  T193]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.247185][  T193]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.247457][  T193]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.247580][  T193]  ? __ia32_sys_open (fs/open.c:1374)
[    9.247703][  T193]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.247820][  T193]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.247943][  T193]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.248064][  T193]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.248274][  T193]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.248451][  T193]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.248601][  T193] RIP: 0033:0x7fc822614bcb
[    9.248727][  T193] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    9.249259][  T193] RSP: 002b:00007fff58faa588 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    9.249496][  T193] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fc822614bcb
[    9.249676][  T193] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.249851][  T193] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    9.250135][  T193] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fff58fac7b0
[    9.250371][  T193] R13: 0000000000000001 R14: 00007fc8223526f8 R15: 00007fff58fae888
| [    9.255014][  T193] ------------[ cut here ]------------
| [    9.255210][  T193] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/193
| [    9.255531][  T193] Modules linked in:
| [    9.256040][  T193] Tainted: [W]=WARN
[    9.256201][  T193] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.256446][  T193] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.256686][  T193] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.257239][  T193] RSP: 0018:ffa00000009a7a78 EFLAGS: 00010286
[    9.257484][  T193] RAX: 00000000ffffffa6 RBX: ff1100000c1b4e40 RCX: 1ff4000000134f15
[    9.257749][  T193] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c1b4efc
[    9.258074][  T193] RBP: ff11000008621000 R08: 1fe22000018369e1 R09: ff11000010230b80
[    9.258408][  T193] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    9.258731][  T193] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008621000
[    9.259068][  T193] FS:  00007fc822352840(0000) GS:ff110000d43c7000(0000) knlGS:0000000000000000
[    9.259391][  T193] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.259623][  T193] CR2: 00005564bc217d5c CR3: 000000000fa59004 CR4: 0000000000771ef0
[    9.259891][  T193] PKRU: 55555554
[    9.260058][  T193] Call Trace:
[    9.260244][  T193]  <TASK>
[    9.260415][  T193]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.260661][  T193]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.260905][  T193]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.261111][  T193]  register_netdevice (net/core/dev.c:11488)
[    9.261351][  T193]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.261557][  T193]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.261727][  T193]  register_netdev (net/core/dev.c:11552)
[    9.261894][  T193]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[    9.262071][  T193]  ops_init (net/core/net_namespace.c:137)
[    9.262238][  T193]  setup_net (net/core/net_namespace.c:446)
[    9.262420][  T193]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.262616][  T193]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.262816][  T193]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.263025][  T193]  copy_net_ns (net/core/net_namespace.c:579)
[    9.263226][  T193]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.263439][  T193]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.263635][  T193]  ksys_unshare (kernel/fork.c:3243)
[    9.263829][  T193]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.264035][  T193]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.264231][  T193]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.264463][  T193]  ? __ia32_sys_open (fs/open.c:1374)
[    9.264700][  T193]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.264930][  T193]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.265099][  T193]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.265265][  T193]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.265473][  T193]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.265671][  T193]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.265902][  T193] RIP: 0033:0x7fc822614bcb
[    9.266111][  T193] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    9.266739][  T193] RSP: 002b:00007fff58faa588 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    9.267018][  T193] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fc822614bcb
[    9.267279][  T193] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.267551][  T193] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    9.267811][  T193] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fff58fac7b0
[    9.268083][  T193] R13: 0000000000000001 R14: 00007fc8223526f8 R15: 00007fff58fae888
| [    9.273680][  T193] ------------[ cut here ]------------
| [    9.273884][  T193] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/193
| [    9.274211][  T193] Modules linked in:
| [    9.274843][  T193] Tainted: [W]=WARN
[    9.275063][  T193] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.275394][  T193] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.275683][  T193] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.276231][  T193] RSP: 0018:ffa00000009a7a68 EFLAGS: 00010286
[    9.276520][  T193] RAX: 00000000ffffffa6 RBX: ff1100000c1b5e00 RCX: 1ff4000000134f13
[    9.276836][  T193] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c1b5ebc
[    9.277177][  T193] RBP: ff1100000941c000 R08: 1fe2200001836bd9 R09: ff11000010230b80
[    9.277582][  T193] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    9.277898][  T193] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000941c000
[    9.278186][  T193] FS:  00007fc822352840(0000) GS:ff110000d43c7000(0000) knlGS:0000000000000000
[    9.278526][  T193] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.278824][  T193] CR2: 00005564bc217d5c CR3: 000000000fa59004 CR4: 0000000000771ef0
[    9.279154][  T193] PKRU: 55555554
[    9.279383][  T193] Call Trace:
[    9.279563][  T193]  <TASK>
[    9.279692][  T193]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.279896][  T193]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.280119][  T193]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.280294][  T193]  register_netdevice (net/core/dev.c:11488)
[    9.280505][  T193]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.280736][  T193]  register_netdev (net/core/dev.c:11552)
[    9.280941][  T193]  sit_init_net (net/ipv6/sit.c:1860)
[    9.281149][  T193]  ops_init (net/core/net_namespace.c:137)
[    9.281370][  T193]  setup_net (net/core/net_namespace.c:446)
[    9.281532][  T193]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.281697][  T193]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.281865][  T193]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.282040][  T193]  copy_net_ns (net/core/net_namespace.c:579)
[    9.282209][  T193]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.282393][  T193]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.282612][  T193]  ksys_unshare (kernel/fork.c:3243)
[    9.282811][  T193]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.283015][  T193]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.283217][  T193]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.283455][  T193]  ? __ia32_sys_open (fs/open.c:1374)
[    9.283654][  T193]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.283819][  T193]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.284011][  T193]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.284178][  T193]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.284391][  T193]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.284590][  T193]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.284814][  T193] RIP: 0033:0x7fc822614bcb
[    9.285021][  T193] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    9.285699][  T193] RSP: 002b:00007fff58faa588 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    9.286035][  T193] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fc822614bcb
[    9.286366][  T193] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.286646][  T193] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    9.286907][  T193] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fff58fac7b0
[    9.287173][  T193] R13: 0000000000000001 R14: 00007fc8223526f8 R15: 00007fff58fae888
| [    9.292798][  T193] ------------[ cut here ]------------
| [    9.292962][  T193] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/193
| [    9.293214][  T193] Modules linked in:
| [    9.294301][  T193] Tainted: [W]=WARN
[    9.294582][  T193] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.294948][  T193] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.295341][  T193] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.296029][  T193] RSP: 0018:ffa00000009a7a78 EFLAGS: 00010286
[    9.296282][  T193] RAX: 00000000ffffffa6 RBX: ff1100000cf94580 RCX: 1ff4000000134f15
[    9.296613][  T193] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cf9463c
[    9.296937][  T193] RBP: ff11000009804000 R08: 1fe22000019f28c9 R09: ff11000010230b80
[    9.297273][  T193] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    9.297635][  T193] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009804000
[    9.298052][  T193] FS:  00007fc822352840(0000) GS:ff110000d43c7000(0000) knlGS:0000000000000000
[    9.298519][  T193] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.298817][  T193] CR2: 00005564bc217d5c CR3: 000000000fa59004 CR4: 0000000000771ef0
[    9.299153][  T193] PKRU: 55555554
[    9.299380][  T193] Call Trace:
[    9.299593][  T193]  <TASK>
[    9.299776][  T193]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.300047][  T193]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.300325][  T193]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.300515][  T193]  register_netdevice (net/core/dev.c:11488)
[    9.300772][  T193]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.301055][  T193]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.301318][  T193]  register_netdev (net/core/dev.c:11552)
[    9.301526][  T193]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[    9.301712][  T193]  ops_init (net/core/net_namespace.c:137)
[    9.301854][  T193]  setup_net (net/core/net_namespace.c:446)
[    9.302019][  T193]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.302183][  T193]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.302367][  T193]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.302538][  T193]  copy_net_ns (net/core/net_namespace.c:579)
[    9.302707][  T193]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.302876][  T193]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.303051][  T193]  ksys_unshare (kernel/fork.c:3243)
[    9.303236][  T193]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.303415][  T193]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.303587][  T193]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.303755][  T193]  ? __ia32_sys_open (fs/open.c:1374)
[    9.303930][  T193]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.304111][  T193]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.304341][  T193]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.304539][  T193]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.304735][  T193]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.304940][  T193]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.305172][  T193] RIP: 0033:0x7fc822614bcb
[    9.305403][  T193] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    9.305984][  T193] RSP: 002b:00007fff58faa588 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    9.306211][  T193] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fc822614bcb
[    9.306481][  T193] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.306769][  T193] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    9.307042][  T193] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fff58fac7b0
[    9.307326][  T193] R13: 0000000000000001 R14: 00007fc8223526f8 R15: 00007fff58fae888
| [    9.340938][  T194] ------------[ cut here ]------------
| [    9.342065][  T194] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/194
| [    9.342358][  T194] Modules linked in:
| [    9.342730][  T194] Tainted: [W]=WARN
[    9.342826][  T194] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.342993][  T194] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.343162][  T194] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.343704][  T194] RSP: 0018:ffa00000009a7020 EFLAGS: 00010286
[    9.343869][  T194] RAX: 00000000ffffffa6 RBX: ff1100000923b700 RCX: 1ff4000000134dca
[    9.344066][  T194] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000923b7bc
[    9.344263][  T194] RBP: ff11000009264000 R08: 1fe22000012476f9 R09: ff11000010232e58
[    9.344479][  T194] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[    9.344675][  T194] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[    9.344873][  T194] FS:  00007fc0f519d840(0000) GS:ff110000d4447000(0000) knlGS:0000000000000000
[    9.345107][  T194] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.345269][  T194] CR2: 000000003e894988 CR3: 000000001094b001 CR4: 0000000000771ef0
[    9.345471][  T194] PKRU: 55555554
[    9.345568][  T194] Call Trace:
[    9.345664][  T194]  <TASK>
[    9.345733][  T194]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.345864][  T194]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.345966][  T194]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.346095][  T194]  __dev_notify_flags (net/core/dev.c:9787)
[    9.346228][  T194]  ? netif_change_name (net/core/dev.c:1495)
[    9.346365][  T194]  ? __dev_change_flags (net/core/dev.c:9752)
[    9.346499][  T194]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[    9.346629][  T194]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.346762][  T194]  ? 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))
[    9.346893][  T194]  netif_change_flags (net/core/dev.c:9820)
[    9.347028][  T194]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[    9.347161][  T194]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    9.347297][  T194]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    9.347434][  T194]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.347599][  T194]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    9.347732][  T194]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.347865][  T194]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    9.347999][  T194]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.348131][  T194]  ? __kernel_text_address (kernel/extable.c:79)
[    9.348261][  T194]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.348397][  T194]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.348526][  T194]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.348656][  T194]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.348785][  T194]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.348912][  T194]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.349084][  T194]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.349207][  T194]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.349334][  T194]  ? __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)
[    9.349455][  T194]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.349577][  T194]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.349700][  T194]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.349824][  T194]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    9.349954][  T194]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.350076][  T194]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.350194][  T194]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.350319][  T194]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.350437][  T194]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.350558][  T194]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.350679][  T194]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.350801][  T194]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.350929][  T194]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.351053][  T194]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.351177][  T194]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.351297][  T194]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.351421][  T194]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.351539][  T194]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.351673][  T194]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.351799][  T194]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.351928][  T194]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.352055][  T194]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.352175][  T194]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.352297][  T194]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.352425][  T194]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    9.352545][  T194]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    9.352667][  T194]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.352790][  T194]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.352929][  T194]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.353054][  T194]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.353174][  T194]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.353293][  T194]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.353418][  T194]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.353537][  T194]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.353656][  T194]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.353813][  T194]  ? move_addr_to_kernel (net/socket.c:258)
[    9.353937][  T194]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.354058][  T194]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.354180][  T194]  ___sys_sendmsg (net/socket.c:2752)
[    9.354297][  T194]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    9.354450][  T194]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.354590][  T194]  __sys_sendmsg (net/socket.c:2784)
[    9.354712][  T194]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.354830][  T194]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    9.354984][  T194]  ? 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)
[    9.355102][  T194]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.355220][  T194]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.355351][  T194]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.355470][  T194]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.355594][  T194]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.355747][  T194] RIP: 0033:0x7fc0f53d708e
[    9.355874][  T194] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    9.356314][  T194] RSP: 002b:00007ffcf810ca80 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.356499][  T194] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fc0f53d708e
[    9.356683][  T194] RDX: 0000000000000000 RSI: 00007ffcf810cb30 RDI: 0000000000000005
[    9.356863][  T194] RBP: 00007ffcf810ca90 R08: 0000000000000000 R09: 0000000000000000
[    9.357049][  T194] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e01a
[    9.357227][  T194] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffcf810d200
| [    9.563062][  T199] ------------[ cut here ]------------
| [    9.563253][  T199] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/199
| [    9.563541][  T199] Modules linked in: ifb
| [    9.563933][  T199] Tainted: [W]=WARN
[    9.564034][  T199] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.564192][  T199] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.564364][  T199] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.564825][  T199] RSP: 0018:ffa00000005871b0 EFLAGS: 00010286
[    9.564993][  T199] RAX: 00000000ffffffa6 RBX: ff110000054ae3c0 RCX: 1ff40000000b0dfc
[    9.565180][  T199] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000054ae47c
[    9.565368][  T199] RBP: ff1100000eae1000 R08: 1fe2200000a95c91 R09: ff1100000f8a0b80
[    9.565553][  T199] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    9.565741][  T199] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffc08046a0
[    9.565936][  T199] FS:  00007f98278be840(0000) GS:ff110000d4447000(0000) knlGS:0000000000000000
[    9.566153][  T199] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.566315][  T199] CR2: 00007f9827bcff10 CR3: 000000000e398003 CR4: 0000000000771ef0
[    9.566503][  T199] PKRU: 55555554
[    9.566601][  T199] Call Trace:
[    9.566696][  T199]  <TASK>
[    9.566764][  T199]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.566888][  T199]  ? netconsole_netdev_event (drivers/net/netconsole.c:1647)
[    9.567017][  T199]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.567111][  T199]  __dev_notify_flags (net/core/dev.c:9787)
[    9.567242][  T199]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.567374][  T199]  ? netif_change_name (net/core/dev.c:1495)
[    9.567498][  T199]  ? register_netdevice (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:11474)
[    9.567625][  T199]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.567780][  T199]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[    9.567906][  T199]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[    9.568039][  T199]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[    9.568160][  T199]  ? __dev_get_by_name (net/core/dev.c:883)
[    9.568287][  T199]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[    9.568420][  T199]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[    9.568550][  T199]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.568683][  T199]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.568811][  T199]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.568938][  T199]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.569060][  T199]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.569181][  T199]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.569313][  T199]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.569436][  T199]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.569562][  T199]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.569689][  T199]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.569814][  T199]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.569941][  T199]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.570064][  T199]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.570193][  T199]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.570383][  T199]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.570506][  T199]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.570629][  T199]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.570758][  T199]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    9.570882][  T199]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    9.571015][  T199]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.571139][  T199]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.571265][  T199]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.571456][  T199]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.571589][  T199]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.571717][  T199]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.571844][  T199]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.571970][  T199]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.572092][  T199]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.572247][  T199]  ? move_addr_to_kernel (net/socket.c:258)
[    9.572429][  T199]  ___sys_sendmsg (net/socket.c:2752)
[    9.572555][  T199]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.572682][  T199]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.572813][  T199]  ? 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))
[    9.572940][  T199]  __sys_sendmsg (net/socket.c:2784)
[    9.573065][  T199]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.573195][  T199]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.573372][  T199]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.573495][  T199]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.573621][  T199]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.573746][  T199]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.573870][  T199]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.574030][  T199] RIP: 0033:0x7f9827af808e
[    9.574163][  T199] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    9.574668][  T199] RSP: 002b:00007ffcbd1f0d50 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.574856][  T199] RAX: ffffffffffffffda RBX: 00007ffcbd1f14e8 RCX: 00007f9827af808e
[    9.575046][  T199] RDX: 0000000000000000 RSI: 00007ffcbd1f0e00 RDI: 0000000000000005
[    9.575240][  T199] RBP: 00007ffcbd1f0d60 R08: 0000000000000000 R09: 0000000000000000
[    9.575482][  T199] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e01a
[    9.575672][  T199] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffcbd1f14c0
| [    9.604379][  T200] ------------[ cut here ]------------
| [    9.604516][  T200] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/200
| [    9.604727][  T200] Modules linked in: ifb
| [    9.605132][  T200] Tainted: [W]=WARN
[    9.605225][  T200] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.605380][  T200] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.605537][  T200] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.605978][  T200] RSP: 0018:ffa0000000557020 EFLAGS: 00010286
[    9.606132][  T200] RAX: 00000000ffffffa6 RBX: ff110000054ae580 RCX: 1ff40000000aadca
[    9.606317][  T200] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000054ae63c
[    9.606498][  T200] RBP: ff1100000eae1000 R08: 1fe2200000a95cc9 R09: ff1100000f8a2e58
[    9.606678][  T200] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[    9.606852][  T200] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[    9.607042][  T200] FS:  00007f3638e14840(0000) GS:ff110000d42c7000(0000) knlGS:0000000000000000
[    9.607249][  T200] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.607474][  T200] CR2: 000000003f72e988 CR3: 000000000e35e006 CR4: 0000000000771ef0
[    9.607659][  T200] PKRU: 55555554
[    9.607748][  T200] Call Trace:
[    9.607837][  T200]  <TASK>
[    9.607899][  T200]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.608029][  T200]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.608122][  T200]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.608251][  T200]  __dev_notify_flags (net/core/dev.c:9787)
[    9.608459][  T200]  ? netif_change_name (net/core/dev.c:1495)
[    9.608577][  T200]  ? __dev_change_flags (net/core/dev.c:9752)
[    9.608695][  T200]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[    9.608812][  T200]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.608935][  T200]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[    9.609060][  T200]  netif_change_flags (net/core/dev.c:9820)
[    9.609179][  T200]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[    9.609361][  T200]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    9.609482][  T200]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    9.609690][  T200]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.609838][  T200]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    9.609959][  T200]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.610077][  T200]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    9.610193][  T200]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.610344][  T200]  ? __kernel_text_address (kernel/extable.c:79)
[    9.610462][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.610582][  T200]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.610701][  T200]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.610822][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.610947][  T200]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.611064][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.611184][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.611310][  T200]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.611429][  T200]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[    9.611547][  T200]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.611665][  T200]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.611788][  T200]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.611912][  T200]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    9.612042][  T200]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.612162][  T200]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.612286][  T200]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.612409][  T200]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.612526][  T200]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.612644][  T200]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.612763][  T200]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.612884][  T200]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.613005][  T200]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.613126][  T200]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.613244][  T200]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.613372][  T200]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.613494][  T200]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.613613][  T200]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.613739][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.613861][  T200]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.613984][  T200]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.614102][  T200]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.614221][  T200]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.614344][  T200]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.614468][  T200]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    9.614585][  T200]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    9.614712][  T200]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.614833][  T200]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.614955][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.615074][  T200]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.615197][  T200]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.615320][  T200]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.615444][  T200]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.615562][  T200]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.615681][  T200]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.615829][  T200]  ? move_addr_to_kernel (net/socket.c:258)
[    9.615951][  T200]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.616072][  T200]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.616190][  T200]  ___sys_sendmsg (net/socket.c:2752)
[    9.616314][  T200]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    9.616461][  T200]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.616594][  T200]  __sys_sendmsg (net/socket.c:2784)
[    9.616714][  T200]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.616830][  T200]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    9.616987][  T200]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[    9.617107][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.617224][  T200]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.617347][  T200]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.617468][  T200]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.617589][  T200]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.617739][  T200] RIP: 0033:0x7f363904e08e
[    9.617863][  T200] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    9.618294][  T200] RSP: 002b:00007ffc72e06be0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.618476][  T200] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f363904e08e
[    9.618652][  T200] RDX: 0000000000000000 RSI: 00007ffc72e06c90 RDI: 0000000000000005
[    9.618826][  T200] RBP: 00007ffc72e06bf0 R08: 0000000000000000 R09: 0000000000000000
[    9.619008][  T200] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e01a
[    9.619184][  T200] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc72e07350
| [   74.382811][   T12] ------------[ cut here ]------------
| [   74.383008][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   74.383229][   T12] Modules linked in: act_mirred cls_u32 sch_ingress ifb
| [   74.383709][   T12] Tainted: [W]=WARN
[   74.383832][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   74.383970][   T12] Workqueue: netns cleanup_net
[   74.384093][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   74.384274][   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
[   74.384672][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   74.384811][   T12] RAX: 00000000ffffffa6 RBX: ff1100000cb14ac0 RCX: 1ff4000000018eed
[   74.384977][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cb14b7c
[   74.385138][   T12] RBP: ff11000009804000 R08: 1fe2200001962971 R09: ff11000001aed1d0
[   74.385322][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   74.385495][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   74.385669][   T12] FS:  0000000000000000(0000) GS:ff110000d42c7000(0000) knlGS:0000000000000000
[   74.385868][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   74.386009][   T12] CR2: 00007f81a68a4574 CR3: 0000000076d4d001 CR4: 0000000000771ef0
[   74.386190][   T12] PKRU: 55555554
[   74.386277][   T12] Call Trace:
[   74.386366][   T12]  <TASK>
[   74.386428][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   74.386572][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   74.386708][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   74.386820][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   74.386933][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   74.387044][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   74.387240][   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)
[   74.387432][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   74.387543][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   74.387652][   T12]  ? 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)
[   74.387765][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   74.387876][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   74.387981][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   74.388092][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   74.388209][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   74.388330][   T12]  process_one_work (kernel/workqueue.c:3314)
[   74.388449][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   74.388564][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   74.388684][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   74.388798][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   74.388905][   T12]  kthread (kernel/kthread.c:436)
[   74.388987][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   74.389123][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   74.389243][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   74.389407][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   74.389544][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   74.389653][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   74.389762][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   74.392701][   T12] ------------[ cut here ]------------
| [   74.393103][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   74.393449][   T12] Modules linked in: act_mirred cls_u32 sch_ingress ifb
| [   74.393992][   T12] Tainted: [W]=WARN
[   74.394111][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   74.394359][   T12] Workqueue: netns cleanup_net
[   74.394575][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   74.394826][   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
[   74.395457][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   74.395648][   T12] RAX: 00000000ffffffa6 RBX: ff1100000cb151c0 RCX: 1ff4000000018eed
[   74.395888][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cb1527c
[   74.396126][   T12] RBP: ff1100000941c000 R08: 1fe2200001962a51 R09: ff11000001aed1d0
[   74.396412][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   74.396632][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   74.396859][   T12] FS:  0000000000000000(0000) GS:ff110000d42c7000(0000) knlGS:0000000000000000
[   74.397275][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   74.397506][   T12] CR2: 00007f81a68a4574 CR3: 0000000076d4d001 CR4: 0000000000771ef0
[   74.397672][   T12] PKRU: 55555554
[   74.397752][   T12] Call Trace:
[   74.397831][   T12]  <TASK>
[   74.397887][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   74.398099][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   74.398252][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   74.398411][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   74.398521][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   74.398704][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   74.398813][   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)
[   74.398997][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   74.399108][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   74.399225][   T12]  ? 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)
[   74.399390][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   74.399575][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   74.399682][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   74.399808][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   74.399916][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   74.400025][   T12]  process_one_work (kernel/workqueue.c:3314)
[   74.400137][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   74.400248][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   74.400410][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   74.400522][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   74.400630][   T12]  kthread (kernel/kthread.c:436)
[   74.400713][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   74.400847][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   74.400957][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   74.401139][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   74.401277][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   74.401436][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   74.401543][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   74.404336][   T12] ------------[ cut here ]------------
| [   74.404486][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   74.404701][   T12] Modules linked in: act_mirred cls_u32 sch_ingress ifb
| [   74.405157][   T12] Tainted: [W]=WARN
[   74.405245][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   74.405389][   T12] Workqueue: netns cleanup_net
[   74.405504][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   74.405643][   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
[   74.406022][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   74.406161][   T12] RAX: 00000000ffffffa6 RBX: ff1100000cb158c0 RCX: 1ff4000000018eed
[   74.406341][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cb1597c
[   74.406502][   T12] RBP: ff11000008621000 R08: 1fe2200001962b31 R09: ff11000001aed1d0
[   74.406660][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   74.406819][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   74.406979][   T12] FS:  0000000000000000(0000) GS:ff110000d4347000(0000) knlGS:0000000000000000
[   74.407173][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   74.407310][   T12] CR2: 000055bfb3e6a048 CR3: 0000000010944003 CR4: 0000000000771ef0
[   74.407475][   T12] PKRU: 55555554
[   74.407555][   T12] Call Trace:
[   74.407638][   T12]  <TASK>
[   74.407697][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   74.407836][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   74.407971][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   74.408078][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   74.408246][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   74.408360][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   74.408469][   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)
[   74.408579][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   74.408690][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   74.408797][   T12]  ? 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)
[   74.408904][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   74.409010][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   74.409117][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   74.409232][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   74.409345][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   74.409453][   T12]  process_one_work (kernel/workqueue.c:3314)
[   74.409564][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   74.409671][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   74.409782][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   74.409894][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   74.409999][   T12]  kthread (kernel/kthread.c:436)
[   74.410080][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   74.410223][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   74.410339][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   74.410448][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   74.410584][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   74.410689][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   74.410795][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   74.420670][   T12] ------------[ cut here ]------------
| [   74.420876][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   74.421087][   T12] Modules linked in: act_mirred cls_u32 sch_ingress ifb
| [   74.421495][   T12] Tainted: [W]=WARN
[   74.421578][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   74.421713][   T12] Workqueue: netns cleanup_net
[   74.421906][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   74.422052][   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
[   74.423401][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   74.423550][   T12] RAX: 00000000ffffffa6 RBX: ff1100000cb15c40 RCX: 1ff4000000018eed
[   74.423710][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cb15cfc
[   74.423874][   T12] RBP: ff1100000a839000 R08: 1fe2200001962ba1 R09: ff11000001aed1d0
[   74.424036][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   74.424222][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   74.424477][   T12] FS:  0000000000000000(0000) GS:ff110000d4347000(0000) knlGS:0000000000000000
[   74.424715][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   74.424850][   T12] CR2: 00007f50941a7680 CR3: 0000000076d4d002 CR4: 0000000000771ef0
[   74.425008][   T12] PKRU: 55555554
[   74.425087][   T12] Call Trace:
[   74.425183][   T12]  <TASK>
[   74.425243][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   74.425431][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   74.425563][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   74.425674][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   74.425781][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   74.425888][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   74.425996][   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)
[   74.426105][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   74.426224][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   74.426385][   T12]  ? 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)
[   74.426497][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   74.426604][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   74.426711][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   74.426819][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   74.426924][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   74.427032][   T12]  process_one_work (kernel/workqueue.c:3314)
[   74.427140][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   74.427255][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   74.427412][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   74.427523][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   74.427628][   T12]  kthread (kernel/kthread.c:436)
[   74.427708][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   74.427841][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   74.427949][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   74.428056][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   74.428199][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   74.428353][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   74.428460][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   74.441124][   T12] ------------[ cut here ]------------
| [   74.441272][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   74.441663][   T12] Modules linked in: act_mirred cls_u32 sch_ingress ifb
| [   74.442086][   T12] Tainted: [W]=WARN
[   74.442185][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   74.442513][   T12] Workqueue: netns cleanup_net
[   74.442639][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   74.442793][   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
[   74.443217][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   74.443458][   T12] RAX: 00000000ffffffa6 RBX: ff11000010912040 RCX: 1ff4000000018eed
[   74.443636][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000109120fc
[   74.443898][   T12] RBP: ff1100000fd89000 R08: 1fe2200002122421 R09: ff11000001aed1d0
[   74.444069][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   74.444255][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   74.444522][   T12] FS:  0000000000000000(0000) GS:ff110000d4447000(0000) knlGS:0000000000000000
[   74.444727][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   74.444872][   T12] CR2: 00007fa082b17f98 CR3: 0000000076d4d006 CR4: 0000000000771ef0
[   74.445137][   T12] PKRU: 55555554
[   74.445232][   T12] Call Trace:
[   74.445391][   T12]  <TASK>
[   74.445456][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   74.445620][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   74.445770][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   74.445888][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   74.446009][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   74.446122][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   74.446245][   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)
[   74.446441][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   74.446559][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   74.446678][   T12]  ? 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)
[   74.446795][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   74.446913][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   74.447028][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   74.447152][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   74.447270][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   74.447462][   T12]  process_one_work (kernel/workqueue.c:3314)
[   74.447584][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   74.447702][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   74.447824][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   74.447943][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   74.448062][   T12]  kthread (kernel/kthread.c:436)
[   74.448154][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   74.448298][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   74.448462][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   74.448626][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   74.448773][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   74.448889][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   74.449006][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   74.465743][   T12] ------------[ cut here ]------------
| [   74.465881][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   74.466106][   T12] Modules linked in: act_mirred cls_u32 sch_ingress ifb
| [   74.466529][   T12] Tainted: [W]=WARN
[   74.466614][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   74.466753][   T12] Workqueue: netns cleanup_net
[   74.466869][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   74.467017][   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
[   74.467434][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   74.467583][   T12] RAX: 00000000ffffffa6 RBX: ff11000010912200 RCX: 1ff4000000018eaf
[   74.467751][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000109122bc
[   74.467915][   T12] RBP: ff1100000eae1000 R08: 1fe2200002122459 R09: ff11000001aed1d0
[   74.468083][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000041
[   74.468253][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009264000
[   74.468430][   T12] FS:  0000000000000000(0000) GS:ff110000d4347000(0000) knlGS:0000000000000000
[   74.468622][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   74.468761][   T12] CR2: 00007f50941a7680 CR3: 0000000076d4d002 CR4: 0000000000771ef0
[   74.468931][   T12] PKRU: 55555554
[   74.469017][   T12] Call Trace:
[   74.469100][   T12]  <TASK>
[   74.469166][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   74.469281][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   74.469375][   T12]  netif_close_many (net/core/dev.c:1804)
[   74.469488][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   74.469608][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   74.469722][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   74.469835][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   74.469946][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   74.470087][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   74.470234][   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)
[   74.470355][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   74.470469][   T12]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   74.470580][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   74.470715][   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)
[   74.470825][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   74.470935][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   74.471075][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   74.471195][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   74.471315][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   74.471428][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   74.471543][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   74.471654][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   74.471767][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   74.471880][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   74.471993][   T12]  ? 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)
[   74.472107][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   74.472235][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   74.472355][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   74.472467][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   74.472576][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   74.472689][   T12]  process_one_work (kernel/workqueue.c:3314)
[   74.472804][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   74.472915][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   74.473028][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   74.473141][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   74.473261][   T12]  kthread (kernel/kthread.c:436)
[   74.473352][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   74.473494][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   74.473607][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   74.473734][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   74.473874][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   74.473986][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   74.474096][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   74.476182][   T12] ------------[ cut here ]------------
| [   74.476295][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   74.476866][   T12] Modules linked in: act_mirred cls_u32 sch_ingress ifb
| [   74.477293][   T12] Tainted: [W]=WARN
[   74.477387][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   74.477530][   T12] Workqueue: netns cleanup_net
[   74.477647][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   74.477794][   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
[   74.478197][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   74.478343][   T12] RAX: 00000000ffffffa6 RBX: ff11000010912e40 RCX: 1ff4000000018eaf
[   74.478511][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000010912efc
[   74.478674][   T12] RBP: ff11000009264000 R08: 1fe22000021225e1 R09: ff11000001aed1d0
[   74.478836][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000041
[   74.478998][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000000c77e0
[   74.479167][   T12] FS:  0000000000000000(0000) GS:ff110000d4347000(0000) knlGS:0000000000000000
[   74.479367][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   74.479524][   T12] CR2: 00007f50941a7680 CR3: 0000000076d4d002 CR4: 0000000000771ef0
[   74.479692][   T12] PKRU: 55555554
[   74.479774][   T12] Call Trace:
[   74.479856][   T12]  <TASK>
[   74.479913][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   74.480026][   T12]  ? notifier_call_chain (kernel/notifier.c:85)
[   74.480138][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   74.480226][   T12]  netif_close_many (net/core/dev.c:1804)
[   74.480344][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   74.480453][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   74.480563][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   74.480673][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   74.480785][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   74.480925][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   74.481061][   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)
[   74.481174][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   74.481283][   T12]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   74.481397][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   74.481534][   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)
[   74.481646][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   74.481757][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   74.481895][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   74.482005][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   74.482119][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   74.482242][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   74.482360][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   74.482472][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   74.482586][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   74.482698][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   74.482813][   T12]  ? 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)
[   74.482927][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   74.483037][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   74.483145][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   74.483263][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   74.483380][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   74.483495][   T12]  process_one_work (kernel/workqueue.c:3314)
[   74.483609][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   74.483719][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   74.483834][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   74.483949][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   74.484060][   T12]  kthread (kernel/kthread.c:436)
[   74.484143][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   74.484295][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   74.484413][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   74.484523][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   74.484661][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   74.484771][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   74.484883][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   74.488072][   T12] ------------[ cut here ]------------
| [   74.488190][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   74.488403][   T12] Modules linked in: act_mirred cls_u32 sch_ingress ifb
| [   74.488782][   T12] Tainted: [W]=WARN
[   74.488863][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   74.488997][   T12] Workqueue: netns cleanup_net
[   74.489109][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   74.489254][   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
[   74.489638][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   74.489769][   T12] RAX: 00000000ffffffa6 RBX: ff11000010913e00 RCX: 1ff4000000018ed5
[   74.489926][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000010913ebc
[   74.490085][   T12] RBP: ff1100000eae1000 R08: 1fe22000021227d9 R09: ff11000001aed1d0
[   74.490251][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   74.490417][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   74.490578][   T12] FS:  0000000000000000(0000) GS:ff110000d4347000(0000) knlGS:0000000000000000
[   74.490768][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   74.490903][   T12] CR2: 00007f50941a7680 CR3: 0000000076d4d002 CR4: 0000000000771ef0
[   74.491065][   T12] PKRU: 55555554
[   74.491143][   T12] Call Trace:
[   74.491229][   T12]  <TASK>
[   74.491285][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   74.491428][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   74.491561][   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)
[   74.491667][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   74.491773][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   74.491908][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   74.492017][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   74.492125][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   74.492238][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   74.492352][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   74.492461][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   74.492568][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   74.492673][   T12]  ? 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)
[   74.492784][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   74.492894][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   74.493000][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   74.493111][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   74.493226][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   74.493340][   T12]  process_one_work (kernel/workqueue.c:3314)
[   74.493450][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   74.493554][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   74.493665][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   74.493776][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   74.493882][   T12]  kthread (kernel/kthread.c:436)
[   74.493965][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   74.494096][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   74.494206][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   74.494318][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   74.494452][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   74.494556][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   74.494666][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   74.500481][   T12] ------------[ cut here ]------------
| [   74.500610][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   74.500828][   T12] Modules linked in: act_mirred cls_u32 sch_ingress ifb
| [   74.501214][   T12] Tainted: [W]=WARN
[   74.501292][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   74.501427][   T12] Workqueue: netns cleanup_net
[   74.501538][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   74.501678][   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
[   74.502052][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   74.502193][   T12] RAX: 00000000ffffffa6 RBX: ff11000002838ac0 RCX: 1ff4000000018ed5
[   74.502375][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000002838b7c
[   74.502531][   T12] RBP: ff11000009264000 R08: 1fe2200000507171 R09: ff11000001aed1d0
[   74.502686][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   74.502841][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   74.503000][   T12] FS:  0000000000000000(0000) GS:ff110000d4347000(0000) knlGS:0000000000000000
[   74.503189][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   74.503323][   T12] CR2: 00007f50941a7680 CR3: 0000000076d4d002 CR4: 0000000000771ef0
[   74.503479][   T12] PKRU: 55555554
[   74.503560][   T12] Call Trace:
[   74.503639][   T12]  <TASK>
[   74.503694][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   74.503829][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   74.503957][   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)
[   74.504064][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   74.504174][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   74.504310][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   74.504416][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   74.504526][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   74.504631][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   74.504735][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   74.504842][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   74.504949][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   74.505056][   T12]  ? 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)
[   74.505169][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   74.505281][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   74.505463][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   74.505572][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   74.505676][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   74.505786][   T12]  process_one_work (kernel/workqueue.c:3314)
[   74.505894][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   74.505999][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   74.506107][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   74.506226][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   74.506419][   T12]  kthread (kernel/kthread.c:436)
[   74.506500][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   74.506631][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   74.506735][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   74.506839][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   74.506970][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   74.507075][   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:unregister_netdevice_many_notify:ops_undo_list:cleanup_net:process_one_work
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