======================================
| xx__-> [    8.836472][  T166] ------------[ cut here ]------------
| [    8.836687][  T166] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: scm_rights/166
| [    8.836964][  T166] Modules linked in:
| [    8.837501][  T166] Tainted: [W]=WARN
[    8.837623][  T166] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.837836][  T166] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.838006][  T166] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.838475][  T166] RSP: 0018:ffa0000000857a80 EFLAGS: 00010286
[    8.838649][  T166] RAX: 00000000ffffffa6 RBX: ff1100000b62e040 RCX: 1ff400000010af16
[    8.838844][  T166] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b62e0fc
[    8.839035][  T166] RBP: ff1100000a0c4000 R08: 1fe22000016c5c21 R09: ff1100000fb8ae80
[    8.839233][  T166] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[    8.839425][  T166] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a0c4000
[    8.839624][  T166] FS:  00007fa0a8e27740(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[    8.839916][  T166] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.840085][  T166] CR2: 00007fa0a8f22bc0 CR3: 000000001021c004 CR4: 0000000000771ef0
[    8.840281][  T166] PKRU: 55555554
[    8.840378][  T166] Call Trace:
[    8.840475][  T166]  <TASK>
[    8.840542][  T166]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.840677][  T166]  ? notifier_call_chain (kernel/notifier.c:85)
[    8.840859][  T166]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.840961][  T166]  register_netdevice (net/core/dev.c:11488)
[    8.841093][  T166]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    8.841254][  T166]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    8.841384][  T166]  register_netdev (net/core/dev.c:11552)
[    8.841512][  T166]  loopback_net_init (drivers/net/loopback.c:218)
[    8.841645][  T166]  ops_init (net/core/net_namespace.c:137)
[    8.841797][  T166]  setup_net (net/core/net_namespace.c:446)
[    8.841899][  T166]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    8.842028][  T166]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    8.842157][  T166]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    8.842288][  T166]  copy_net_ns (net/core/net_namespace.c:579)
[    8.842417][  T166]  create_new_namespaces (kernel/nsproxy.c:132)
[    8.842548][  T166]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    8.842682][  T166]  ksys_unshare (kernel/fork.c:3243)
[    8.842872][  T166]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.843000][  T166]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    8.843127][  T166]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.843255][  T166]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[    8.843386][  T166]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.843518][  T166]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    8.843651][  T166]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    8.843835][  T166]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.843967][  T166]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.844097][  T166]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.844226][  T166]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.844385][  T166] RIP: 0033:0x7fa0a8f22bcb
[    8.844522][  T166] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    8.845040][  T166] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    8.845234][  T166] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[    8.845424][  T166] RDX: 0000000000406360 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[    8.845619][  T166] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[    8.845850][  T166] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[    8.846040][  T166] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [    8.851773][  T166] ------------[ cut here ]------------
| [    8.851919][  T166] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: scm_rights/166
| [    8.852174][  T166] Modules linked in:
| [    8.852582][  T166] Tainted: [W]=WARN
[    8.852681][  T166] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.852848][  T166] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.853014][  T166] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.853486][  T166] RSP: 0018:ffa0000000857918 EFLAGS: 00010286
[    8.853654][  T166] RAX: 00000000ffffffa6 RBX: ff1100000c4bf000 RCX: 1ff400000010aee9
[    8.853911][  T166] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c4bf0bc
[    8.854103][  T166] RBP: ff1100000a329000 R08: 1fe2200001897e19 R09: ff1100000fb8ae80
[    8.854304][  T166] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[    8.854496][  T166] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a329000
[    8.854694][  T166] FS:  00007fa0a8e27740(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[    8.854977][  T166] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.855148][  T166] CR2: 00007fa0a8f22bc0 CR3: 000000001021c004 CR4: 0000000000771ef0
[    8.855342][  T166] PKRU: 55555554
[    8.855438][  T166] Call Trace:
[    8.855535][  T166]  <TASK>
[    8.855660][  T166]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.855845][  T166]  ? notifier_call_chain (kernel/notifier.c:85)
[    8.855974][  T166]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.856075][  T166]  register_netdevice (net/core/dev.c:11488)
[    8.856210][  T166]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    8.856370][  T166]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    8.856500][  T166]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[    8.856640][  T166]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[    8.856824][  T166]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[    8.856954][  T166]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[    8.857092][  T166]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[    8.857222][  T166]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[    8.857352][  T166]  ops_init (net/core/net_namespace.c:137)
[    8.857452][  T166]  setup_net (net/core/net_namespace.c:446)
[    8.857550][  T166]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    8.857682][  T166]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    8.857865][  T166]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    8.858005][  T166]  copy_net_ns (net/core/net_namespace.c:579)
[    8.858134][  T166]  create_new_namespaces (kernel/nsproxy.c:132)
[    8.858368][  T166]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    8.858512][  T166]  ksys_unshare (kernel/fork.c:3243)
[    8.858648][  T166]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.858840][  T166]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    8.858967][  T166]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.859106][  T166]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[    8.859237][  T166]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.859367][  T166]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    8.859494][  T166]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    8.859628][  T166]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.859821][  T166]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.860002][  T166]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.860129][  T166]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.860292][  T166] RIP: 0033:0x7fa0a8f22bcb
[    8.860426][  T166] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    8.860948][  T166] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    8.861141][  T166] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[    8.861334][  T166] RDX: 0000000000406360 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[    8.861524][  T166] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[    8.861724][  T166] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[    8.861969][  T166] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [    8.872557][  T166] ------------[ cut here ]------------
| [    8.872712][  T166] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/166
| [    8.872980][  T166] Modules linked in:
| [    8.873382][  T166] Tainted: [W]=WARN
[    8.873481][  T166] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.873651][  T166] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.873828][  T166] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.874295][  T166] RSP: 0018:ffa00000008578f8 EFLAGS: 00010286
[    8.874462][  T166] RAX: 00000000ffffffa6 RBX: ff1100000c744040 RCX: 1ff400000010aee5
[    8.874663][  T166] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c7440fc
[    8.874865][  T166] RBP: ff110000089a9000 R08: 1fe22000018e8821 R09: ff1100000fb8ae80
[    8.875061][  T166] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    8.875264][  T166] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000089a9000
[    8.875461][  T166] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[    8.875696][  T166] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.875866][  T166] CR2: 00000000004090b0 CR3: 000000001021c006 CR4: 0000000000771ef0
[    8.876063][  T166] PKRU: 55555554
[    8.876167][  T166] Call Trace:
[    8.876266][  T166]  <TASK>
[    8.876334][  T166]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.876465][  T166]  ? notifier_call_chain (kernel/notifier.c:85)
[    8.876601][  T166]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.876701][  T166]  register_netdevice (net/core/dev.c:11488)
[    8.876840][  T166]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    8.877004][  T166]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    8.877142][  T166]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[    8.877275][  T166]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[    8.877406][  T166]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[    8.877538][  T166]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[    8.877674][  T166]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[    8.877812][  T166]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[    8.877945][  T166]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[    8.878079][  T166]  vti_init_net (net/ipv4/ip_vti.c:517)
[    8.878215][  T166]  ops_init (net/core/net_namespace.c:137)
[    8.878318][  T166]  setup_net (net/core/net_namespace.c:446)
[    8.878417][  T166]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    8.878548][  T166]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    8.878683][  T166]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    8.878823][  T166]  copy_net_ns (net/core/net_namespace.c:579)
[    8.878955][  T166]  create_new_namespaces (kernel/nsproxy.c:132)
[    8.879093][  T166]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    8.879225][  T166]  ksys_unshare (kernel/fork.c:3243)
[    8.879355][  T166]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.879486][  T166]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    8.879619][  T166]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.879753][  T166]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[    8.879886][  T166]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.880023][  T166]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    8.880154][  T166]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    8.880285][  T166]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.880415][  T166]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.880545][  T166]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.880680][  T166]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.880846][  T166] RIP: 0033:0x7fa0a8f22bcb
[    8.880983][  T166] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    8.881447][  T166] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    8.881649][  T166] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[    8.881853][  T166] RDX: 0000000000406360 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[    8.882048][  T166] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[    8.882242][  T166] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[    8.882437][  T166] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [    8.886697][  T166] ------------[ cut here ]------------
| [    8.886841][  T166] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/166
| [    8.887106][  T166] Modules linked in:
| [    8.887502][  T166] Tainted: [W]=WARN
[    8.887606][  T166] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.887777][  T166] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.887952][  T166] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.888412][  T166] RSP: 0018:ffa0000000857a78 EFLAGS: 00010286
[    8.888581][  T166] RAX: 00000000ffffffa6 RBX: ff1100000cfbc580 RCX: 1ff400000010af15
[    8.888786][  T166] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cfbc63c
[    8.888981][  T166] RBP: ff1100000916c000 R08: 1fe22000019f78c9 R09: ff1100000fb8ae80
[    8.889174][  T166] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    8.889368][  T166] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000916c000
[    8.889570][  T166] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[    8.889804][  T166] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.889967][  T166] CR2: 00000000004090b0 CR3: 000000001021c006 CR4: 0000000000771ef0
[    8.890162][  T166] PKRU: 55555554
[    8.890259][  T166] Call Trace:
[    8.890355][  T166]  <TASK>
[    8.890423][  T166]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.890557][  T166]  ? notifier_call_chain (kernel/notifier.c:85)
[    8.890694][  T166]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.890799][  T166]  register_netdevice (net/core/dev.c:11488)
[    8.890931][  T166]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    8.891092][  T166]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.891225][  T166]  register_netdev (net/core/dev.c:11552)
[    8.891360][  T166]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[    8.891492][  T166]  ops_init (net/core/net_namespace.c:137)
[    8.891598][  T166]  setup_net (net/core/net_namespace.c:446)
[    8.891697][  T166]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    8.891834][  T166]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    8.891964][  T166]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    8.892096][  T166]  copy_net_ns (net/core/net_namespace.c:579)
[    8.892227][  T166]  create_new_namespaces (kernel/nsproxy.c:132)
[    8.892361][  T166]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    8.892492][  T166]  ksys_unshare (kernel/fork.c:3243)
[    8.892627][  T166]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.892763][  T166]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    8.892892][  T166]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.893022][  T166]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[    8.893167][  T166]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.893298][  T166]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    8.893427][  T166]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    8.893557][  T166]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.893690][  T166]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.893826][  T166]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.893957][  T166]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.894119][  T166] RIP: 0033:0x7fa0a8f22bcb
[    8.894257][  T166] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    8.894725][  T166] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    8.894925][  T166] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[    8.895127][  T166] RDX: 0000000000406360 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[    8.895322][  T166] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[    8.895516][  T166] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[    8.895712][  T166] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [    8.900025][  T166] ------------[ cut here ]------------
| [    8.900328][  T166] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/166
| [    8.900587][  T166] Modules linked in:
| [    8.901072][  T166] Tainted: [W]=WARN
[    8.901171][  T166] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.901337][  T166] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.901602][  T166] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.902158][  T166] RSP: 0018:ffa0000000857a68 EFLAGS: 00010286
[    8.902323][  T166] RAX: 00000000ffffffa6 RBX: ff1100000cfbdc40 RCX: 1ff400000010af13
[    8.902520][  T166] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cfbdcfc
[    8.902811][  T166] RBP: ff1100000a8d1000 R08: 1fe22000019f7ba1 R09: ff1100000fb8ae80
[    8.903007][  T166] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    8.903200][  T166] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a8d1000
[    8.903488][  T166] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[    8.903721][  T166] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.903889][  T166] CR2: 00000000004090b0 CR3: 000000001021c006 CR4: 0000000000771ef0
[    8.904171][  T166] PKRU: 55555554
[    8.904269][  T166] Call Trace:
[    8.904369][  T166]  <TASK>
[    8.904436][  T166]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.904747][  T166]  ? notifier_call_chain (kernel/notifier.c:85)
[    8.904879][  T166]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.904988][  T166]  register_netdevice (net/core/dev.c:11488)
[    8.905120][  T166]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    8.905371][  T166]  register_netdev (net/core/dev.c:11552)
[    8.905504][  T166]  sit_init_net (net/ipv6/sit.c:1860)
[    8.905641][  T166]  ops_init (net/core/net_namespace.c:137)
[    8.905746][  T166]  setup_net (net/core/net_namespace.c:446)
[    8.905845][  T166]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    8.906059][  T166]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    8.906189][  T166]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    8.906322][  T166]  copy_net_ns (net/core/net_namespace.c:579)
[    8.906454][  T166]  create_new_namespaces (kernel/nsproxy.c:132)
[    8.906681][  T166]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    8.906815][  T166]  ksys_unshare (kernel/fork.c:3243)
[    8.906946][  T166]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.907075][  T166]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    8.907289][  T166]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.907420][  T166]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[    8.907552][  T166]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.907695][  T166]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    8.907832][  T166]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    8.907962][  T166]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.908091][  T166]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.908225][  T166]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.908440][  T166]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.908606][  T166] RIP: 0033:0x7fa0a8f22bcb
[    8.908747][  T166] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    8.909306][  T166] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    8.909501][  T166] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[    8.909792][  T166] RDX: 0000000000406360 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[    8.909988][  T166] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[    8.910268][  T166] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[    8.910463][  T166] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [    8.915103][  T166] ------------[ cut here ]------------
| [    8.915241][  T166] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/166
| [    8.915589][  T166] Modules linked in:
| [    8.916090][  T166] Tainted: [W]=WARN
[    8.916189][  T166] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.916353][  T166] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.916523][  T166] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.917096][  T166] RSP: 0018:ffa0000000857a78 EFLAGS: 00010286
[    8.917353][  T166] RAX: 00000000ffffffa6 RBX: ff1100000ba92900 RCX: 1ff400000010af15
[    8.917551][  T166] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ba929bc
[    8.917757][  T166] RBP: ff110000091e1000 R08: 1fe2200001752539 R09: ff1100000fb8ae80
[    8.918046][  T166] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    8.918242][  T166] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000091e1000
[    8.918440][  T166] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[    8.918771][  T166] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.918935][  T166] CR2: 00000000004090b0 CR3: 000000001021c006 CR4: 0000000000771ef0
[    8.919228][  T166] PKRU: 55555554
[    8.919326][  T166] Call Trace:
[    8.919425][  T166]  <TASK>
[    8.919493][  T166]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.919629][  T166]  ? notifier_call_chain (kernel/notifier.c:85)
[    8.919853][  T166]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.919953][  T166]  register_netdevice (net/core/dev.c:11488)
[    8.920086][  T166]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    8.920252][  T166]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.920473][  T166]  register_netdev (net/core/dev.c:11552)
[    8.920607][  T166]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[    8.920744][  T166]  ops_init (net/core/net_namespace.c:137)
[    8.920845][  T166]  setup_net (net/core/net_namespace.c:446)
[    8.920944][  T166]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    8.921075][  T166]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    8.921210][  T166]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    8.921344][  T166]  copy_net_ns (net/core/net_namespace.c:579)
[    8.921477][  T166]  create_new_namespaces (kernel/nsproxy.c:132)
[    8.921702][  T166]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    8.921841][  T166]  ksys_unshare (kernel/fork.c:3243)
[    8.921971][  T166]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.922102][  T166]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    8.922322][  T166]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.922454][  T166]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[    8.922592][  T166]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.922728][  T166]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    8.922866][  T166]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    8.922999][  T166]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.923130][  T166]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.923265][  T166]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.923486][  T166]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.923653][  T166] RIP: 0033:0x7fa0a8f22bcb
[    8.923795][  T166] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    8.924353][  T166] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    8.924647][  T166] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[    8.924846][  T166] RDX: 0000000000406360 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[    8.925041][  T166] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[    8.925324][  T166] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[    8.925523][  T166] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [    9.937781][   T12] ------------[ cut here ]------------
| [    9.938067][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [    9.938389][   T12] Modules linked in:
| [    9.939003][   T12] Tainted: [W]=WARN
[    9.939201][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.939449][   T12] Workqueue: netns cleanup_net
[    9.939649][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.939877][   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
[    9.940365][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[    9.940588][   T12] RAX: 00000000ffffffa6 RBX: ff1100000ba92ac0 RCX: 1ff4000000018eed
[    9.940851][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ba92b7c
[    9.941089][   T12] RBP: ff110000091e1000 R08: 1fe2200001752571 R09: ff11000001aed1d0
[    9.941332][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    9.941562][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[    9.941813][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[    9.942075][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.942292][   T12] CR2: 0000564716d0bcf0 CR3: 0000000004bac006 CR4: 0000000000771ef0
[    9.942535][   T12] PKRU: 55555554
[    9.942684][   T12] Call Trace:
[    9.942838][   T12]  <TASK>
[    9.942953][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    9.943159][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[    9.943373][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[    9.943575][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[    9.943771][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[    9.943953][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[    9.944125][   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)
[    9.944303][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[    9.944470][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[    9.944640][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.944825][   T12]  cleanup_net (net/core/net_namespace.c:702)
[    9.945013][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[    9.945194][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[    9.945380][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.945563][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.945767][   T12]  process_one_work (kernel/workqueue.c:3314)
[    9.945953][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[    9.946116][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.946284][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    9.946451][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    9.946617][   T12]  kthread (kernel/kthread.c:436)
[    9.946766][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    9.946965][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[    9.947129][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[    9.947294][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[    9.947485][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[    9.947658][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[    9.947835][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    9.950684][   T12] ------------[ cut here ]------------
| [    9.950929][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [    9.951278][   T12] Modules linked in:
| [    9.951752][   T12] Tainted: [W]=WARN
[    9.951885][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.952075][   T12] Workqueue: netns cleanup_net
[    9.952242][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.952440][   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
[    9.952918][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[    9.953172][   T12] RAX: 00000000ffffffa6 RBX: ff1100000ba93700 RCX: 1ff4000000018eed
[    9.953390][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ba937bc
[    9.953615][   T12] RBP: ff1100000a8d1000 R08: 1fe22000017526f9 R09: ff11000001aed1d0
[    9.953843][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    9.954059][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[    9.954280][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[    9.954528][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.954725][   T12] CR2: 0000564716d0bcf0 CR3: 0000000004bac006 CR4: 0000000000771ef0
[    9.954958][   T12] PKRU: 55555554
[    9.955091][   T12] Call Trace:
[    9.955225][   T12]  <TASK>
[    9.955332][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    9.955528][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[    9.955727][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[    9.955907][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[    9.956072][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[    9.956233][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[    9.956397][   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)
[    9.956561][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[    9.956748][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[    9.956913][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.957080][   T12]  cleanup_net (net/core/net_namespace.c:702)
[    9.957247][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[    9.957411][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[    9.957583][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.957760][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.957926][   T12]  process_one_work (kernel/workqueue.c:3314)
[    9.958092][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[    9.958256][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.958423][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    9.958599][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    9.958776][   T12]  kthread (kernel/kthread.c:436)
[    9.958912][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    9.959104][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[    9.959268][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[    9.959435][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[    9.959632][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[    9.959808][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[    9.959972][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    9.962644][   T12] ------------[ cut here ]------------
| [    9.963213][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [    9.963534][   T12] Modules linked in:
| [    9.964135][   T12] Tainted: [W]=WARN
[    9.964314][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.964550][   T12] Workqueue: netns cleanup_net
[    9.964787][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.965034][   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
[    9.965539][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[    9.965793][   T12] RAX: 00000000ffffffa6 RBX: ff1100000d089000 RCX: 1ff4000000018eed
[    9.966058][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d0890bc
[    9.966319][   T12] RBP: ff1100000916c000 R08: 1fe2200001a11219 R09: ff11000001aed1d0
[    9.966594][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    9.966872][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[    9.967139][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[    9.967432][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.967681][   T12] CR2: 0000564716d0bcf0 CR3: 0000000004bac006 CR4: 0000000000771ef0
[    9.968013][   T12] PKRU: 55555554
[    9.968203][   T12] Call Trace:
[    9.968333][   T12]  <TASK>
[    9.968440][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    9.968645][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[    9.968853][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[    9.969020][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[    9.969187][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[    9.969351][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[    9.969515][   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)
[    9.969688][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[    9.969870][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[    9.970031][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.970197][   T12]  cleanup_net (net/core/net_namespace.c:702)
[    9.970361][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[    9.970527][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[    9.970699][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.970871][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.971037][   T12]  process_one_work (kernel/workqueue.c:3314)
[    9.971206][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[    9.971370][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.971537][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    9.971711][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    9.971886][   T12]  kthread (kernel/kthread.c:436)
[    9.972020][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    9.972210][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[    9.972374][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[    9.972540][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[    9.972752][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[    9.972919][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[    9.973082][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    9.975521][   T12] ------------[ cut here ]------------
| [    9.975658][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [    9.975901][   T12] Modules linked in:
| [    9.976254][   T12] Tainted: [W]=WARN
[    9.976346][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.976492][   T12] Workqueue: netns cleanup_net
[    9.976618][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.976775][   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
[    9.977186][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[    9.977334][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c4bee40 RCX: 1ff4000000018eed
[    9.977512][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c4beefc
[    9.977691][   T12] RBP: ff110000089a9000 R08: 1fe2200001897de1 R09: ff11000001aed1d0
[    9.977883][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[    9.978057][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[    9.978231][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[    9.978439][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.978594][   T12] CR2: 00007fa0a8e9a0a0 CR3: 000000001021c002 CR4: 0000000000771ef0
[    9.978774][   T12] PKRU: 55555554
[    9.978862][   T12] Call Trace:
[    9.978949][   T12]  <TASK>
[    9.979010][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    9.979158][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[    9.979302][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[    9.979419][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[    9.979535][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[    9.979655][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[    9.979777][   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)
[    9.979895][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[    9.980012][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[    9.980127][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.980245][   T12]  cleanup_net (net/core/net_namespace.c:702)
[    9.980362][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[    9.980478][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[    9.980600][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.980721][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.980845][   T12]  process_one_work (kernel/workqueue.c:3314)
[    9.980966][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[    9.981086][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.981206][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    9.981327][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    9.981447][   T12]  kthread (kernel/kthread.c:436)
[    9.981535][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    9.981683][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[    9.981802][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[    9.981918][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[    9.982063][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[    9.982178][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[    9.982295][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    9.984238][   T12] ------------[ cut here ]------------
| [    9.984354][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [    9.984583][   T12] Modules linked in:
| [    9.984941][   T12] Tainted: [W]=WARN
[    9.985029][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.985174][   T12] Workqueue: netns cleanup_net
[    9.985294][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.985445][   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
[    9.985873][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[    9.986019][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c2823c0 RCX: 1ff4000000018eed
[    9.986195][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c28247c
[    9.986372][   T12] RBP: ff1100000a329000 R08: 1fe2200001850491 R09: ff11000001aed1d0
[    9.986547][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[    9.986731][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[    9.986911][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[    9.987114][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.987262][   T12] CR2: 00007fa0a8e9a0a0 CR3: 000000001021c002 CR4: 0000000000771ef0
[    9.987435][   T12] PKRU: 55555554
[    9.987521][   T12] Call Trace:
[    9.987612][   T12]  <TASK>
[    9.987672][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    9.987827][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[    9.987970][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[    9.988087][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[    9.988204][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[    9.988319][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[    9.988435][   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)
[    9.988552][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[    9.988674][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[    9.988796][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.988914][   T12]  cleanup_net (net/core/net_namespace.c:702)
[    9.989035][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[    9.989150][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[    9.989267][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.989382][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.989503][   T12]  process_one_work (kernel/workqueue.c:3314)
[    9.989628][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[    9.989746][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.989866][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    9.989985][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    9.990100][   T12]  kthread (kernel/kthread.c:436)
[    9.990187][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    9.990330][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[    9.990449][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[    9.990564][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[    9.990712][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[    9.990830][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[    9.990945][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    9.999502][  T168] ------------[ cut here ]------------
| [    9.999654][  T168] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/168
| [    9.999926][  T168] Modules linked in:
| [   10.000327][  T168] Tainted: [W]=WARN
[   10.000425][  T168] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.000592][  T168] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.000769][  T168] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   10.001230][  T168] RSP: 0018:ffa00000005d7a80 EFLAGS: 00010286
[   10.001393][  T168] RAX: 00000000ffffffa6 RBX: ff1100000d0898c0 RCX: 1ff40000000baf16
[   10.001589][  T168] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d08997c
[   10.001794][  T168] RBP: ff1100000ea99000 R08: 1fe2200001a11331 R09: ff11000010022e80
[   10.001987][  T168] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   10.002183][  T168] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000ea99000
[   10.002379][  T168] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   10.002612][  T168] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.002780][  T168] CR2: 00007fa0a8f22bc0 CR3: 000000000da86001 CR4: 0000000000771ef0
[   10.002977][  T168] PKRU: 55555554
[   10.003073][  T168] Call Trace:
[   10.003170][  T168]  <TASK>
[   10.003237][  T168]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   10.003368][  T168]  ? notifier_call_chain (kernel/notifier.c:85)
[   10.003499][  T168]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   10.003604][  T168]  register_netdevice (net/core/dev.c:11488)
[   10.003741][  T168]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   10.003911][  T168]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   10.004044][  T168]  register_netdev (net/core/dev.c:11552)
[   10.004173][  T168]  loopback_net_init (drivers/net/loopback.c:218)
[   10.004308][  T168]  ops_init (net/core/net_namespace.c:137)
[   10.004407][  T168]  setup_net (net/core/net_namespace.c:446)
[   10.004507][  T168]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   10.004642][  T168]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   10.004779][  T168]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   10.004912][  T168]  copy_net_ns (net/core/net_namespace.c:579)
[   10.005045][  T168]  create_new_namespaces (kernel/nsproxy.c:132)
[   10.005179][  T168]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   10.005311][  T168]  ksys_unshare (kernel/fork.c:3243)
[   10.005443][  T168]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   10.005578][  T168]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   10.005713][  T168]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.005846][  T168]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   10.005980][  T168]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.006112][  T168]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   10.006242][  T168]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   10.006374][  T168]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   10.006505][  T168]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   10.006641][  T168]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   10.006779][  T168]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.006942][  T168] RIP: 0033:0x7fa0a8f22bcb
[   10.007082][  T168] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   10.007546][  T168] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   10.007753][  T168] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   10.007951][  T168] RDX: 0000000000406360 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   10.008146][  T168] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   10.008343][  T168] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   10.008540][  T168] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   10.012838][  T168] ------------[ cut here ]------------
| [   10.012974][  T168] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/168
| [   10.013233][  T168] Modules linked in:
| [   10.013630][  T168] Tainted: [W]=WARN
[   10.013727][  T168] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.013895][  T168] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.014062][  T168] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   10.014521][  T168] RSP: 0018:ffa00000005d7918 EFLAGS: 00010286
[   10.014689][  T168] RAX: 00000000ffffffa6 RBX: ff1100000e4ba040 RCX: 1ff40000000baee9
[   10.014889][  T168] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e4ba0fc
[   10.015083][  T168] RBP: ff1100000fec9000 R08: 1fe2200001c97421 R09: ff11000010022e80
[   10.015275][  T168] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   10.015468][  T168] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fec9000
[   10.015669][  T168] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   10.015900][  T168] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.016062][  T168] CR2: 00007fa0a8f22bc0 CR3: 000000000da86001 CR4: 0000000000771ef0
[   10.016258][  T168] PKRU: 55555554
[   10.016355][  T168] Call Trace:
[   10.016452][  T168]  <TASK>
[   10.016521][  T168]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   10.016656][  T168]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   10.016760][  T168]  register_netdevice (net/core/dev.c:11488)
[   10.016892][  T168]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   10.017053][  T168]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   10.017185][  T168]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   10.017316][  T168]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   10.017447][  T168]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   10.017582][  T168]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   10.017712][  T168]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   10.017846][  T168]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   10.017977][  T168]  ops_init (net/core/net_namespace.c:137)
[   10.018076][  T168]  setup_net (net/core/net_namespace.c:446)
[   10.018175][  T168]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   10.018304][  T168]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   10.018435][  T168]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   10.018566][  T168]  copy_net_ns (net/core/net_namespace.c:579)
[   10.018703][  T168]  create_new_namespaces (kernel/nsproxy.c:132)
[   10.018840][  T168]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   10.018970][  T168]  ksys_unshare (kernel/fork.c:3243)
[   10.019099][  T168]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   10.019230][  T168]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   10.019359][  T168]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.019489][  T168]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   10.019625][  T168]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.019761][  T168]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   10.019891][  T168]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   10.020019][  T168]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   10.020149][  T168]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   10.020277][  T168]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   10.020411][  T168]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.020576][  T168] RIP: 0033:0x7fa0a8f22bcb
[   10.020712][  T168] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   10.021172][  T168] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   10.021370][  T168] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   10.021561][  T168] RDX: 0000000000406360 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   10.021764][  T168] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   10.021958][  T168] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   10.022154][  T168] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   10.025960][  T168] ------------[ cut here ]------------
| [   10.026098][  T168] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/168
| [   10.026357][  T168] Modules linked in:
| [   10.026762][  T168] Tainted: [W]=WARN
[   10.026860][  T168] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.027025][  T168] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.027196][  T168] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   10.027665][  T168] RSP: 0018:ffa00000005d78f8 EFLAGS: 00010286
[   10.027834][  T168] RAX: 00000000ffffffa6 RBX: ff1100000be5cac0 RCX: 1ff40000000baee5
[   10.028031][  T168] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000be5cb7c
[   10.028225][  T168] RBP: ff11000002419000 R08: 1fe22000017cb971 R09: ff11000010022e80
[   10.028420][  T168] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   10.028620][  T168] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000002419000
[   10.028823][  T168] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   10.029054][  T168] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.029218][  T168] CR2: 00007fa0a8f22bc0 CR3: 000000000da86001 CR4: 0000000000771ef0
[   10.029415][  T168] PKRU: 55555554
[   10.029513][  T168] Call Trace:
[   10.029614][  T168]  <TASK>
[   10.029682][  T168]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   10.029818][  T168]  ? notifier_call_chain (kernel/notifier.c:85)
[   10.029950][  T168]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   10.030051][  T168]  register_netdevice (net/core/dev.c:11488)
[   10.030185][  T168]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   10.030348][  T168]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   10.030480][  T168]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   10.030617][  T168]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   10.030750][  T168]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   10.030883][  T168]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   10.031013][  T168]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   10.031146][  T168]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   10.031278][  T168]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   10.031411][  T168]  vti_init_net (net/ipv4/ip_vti.c:517)
[   10.031541][  T168]  ops_init (net/core/net_namespace.c:137)
[   10.031646][  T168]  setup_net (net/core/net_namespace.c:446)
[   10.031748][  T168]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   10.031878][  T168]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   10.032008][  T168]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   10.032140][  T168]  copy_net_ns (net/core/net_namespace.c:579)
[   10.032272][  T168]  create_new_namespaces (kernel/nsproxy.c:132)
[   10.032405][  T168]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   10.032539][  T168]  ksys_unshare (kernel/fork.c:3243)
[   10.032674][  T168]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   10.032810][  T168]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   10.032939][  T168]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.033069][  T168]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   10.033203][  T168]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.033335][  T168]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   10.033465][  T168]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   10.033604][  T168]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   10.033738][  T168]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   10.033869][  T168]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   10.033999][  T168]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.034160][  T168] RIP: 0033:0x7fa0a8f22bcb
[   10.034295][  T168] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   10.034779][  T168] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   10.034982][  T168] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   10.035174][  T168] RDX: 0000000000406360 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   10.035370][  T168] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   10.035564][  T168] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   10.035767][  T168] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   10.040249][   T12] ------------[ cut here ]------------
| [   10.040378][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   10.040628][   T12] Modules linked in:
| [   10.041002][   T12] Tainted: [W]=WARN
[   10.041093][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.041244][   T12] Workqueue: netns cleanup_net
[   10.041367][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.041522][   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
[   10.041958][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   10.042106][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c2831c0 RCX: 1ff4000000018ed5
[   10.042285][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c28327c
[   10.042462][   T12] RBP: ff1100000a0c4000 R08: 1fe2200001850651 R09: ff11000001aed1d0
[   10.042645][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   10.042829][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   10.043011][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   10.043217][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.043371][   T12] CR2: 00007fa0a8e9a0a0 CR3: 000000001021c002 CR4: 0000000000771ef0
[   10.043549][   T12] PKRU: 55555554
[   10.043644][   T12] Call Trace:
[   10.043738][   T12]  <TASK>
[   10.043802][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   10.043952][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   10.044105][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   10.044228][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   10.044357][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   10.044476][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   10.044598][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   10.044718][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   10.044844][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   10.044962][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.045084][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   10.045205][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   10.045324][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   10.045444][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   10.045566][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.045690][   T12]  process_one_work (kernel/workqueue.c:3314)
[   10.045869][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   10.045986][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.046108][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   10.046230][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   10.046347][   T12]  kthread (kernel/kthread.c:436)
[   10.046436][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.046585][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   10.046703][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   10.046872][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   10.047070][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   10.047186][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   10.047304][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   10.051785][  T168] ------------[ cut here ]------------
| [   10.051924][  T168] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/168
| [   10.052179][  T168] Modules linked in:
| [   10.052575][  T168] Tainted: [W]=WARN
[   10.052676][  T168] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.052844][  T168] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.053012][  T168] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   10.053470][  T168] RSP: 0018:ffa00000005d7a78 EFLAGS: 00010286
[   10.053641][  T168] RAX: 00000000ffffffa6 RBX: ff1100000be5d700 RCX: 1ff40000000baf15
[   10.053840][  T168] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000be5d7bc
[   10.054033][  T168] RBP: ff1100000f3c4000 R08: 1fe22000017cbaf9 R09: ff11000010022e80
[   10.054227][  T168] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   10.054421][  T168] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f3c4000
[   10.054619][  T168] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   10.054853][  T168] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.055014][  T168] CR2: 00007fa0a8f22bc0 CR3: 000000000da86001 CR4: 0000000000771ef0
[   10.055209][  T168] PKRU: 55555554
[   10.055306][  T168] Call Trace:
[   10.055402][  T168]  <TASK>
[   10.055468][  T168]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   10.055601][  T168]  ? notifier_call_chain (kernel/notifier.c:85)
[   10.055731][  T168]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   10.055834][  T168]  register_netdevice (net/core/dev.c:11488)
[   10.055965][  T168]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   10.056125][  T168]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.056257][  T168]  register_netdev (net/core/dev.c:11552)
[   10.056387][  T168]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   10.056519][  T168]  ops_init (net/core/net_namespace.c:137)
[   10.056623][  T168]  setup_net (net/core/net_namespace.c:446)
[   10.056721][  T168]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   10.056856][  T168]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   10.056984][  T168]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   10.057117][  T168]  copy_net_ns (net/core/net_namespace.c:579)
[   10.057247][  T168]  create_new_namespaces (kernel/nsproxy.c:132)
[   10.057378][  T168]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   10.057508][  T168]  ksys_unshare (kernel/fork.c:3243)
[   10.057642][  T168]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   10.057776][  T168]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   10.057903][  T168]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.058033][  T168]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   10.058165][  T168]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.058295][  T168]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   10.058424][  T168]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   10.058553][  T168]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   10.058684][  T168]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   10.058817][  T168]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   10.058948][  T168]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.059109][  T168] RIP: 0033:0x7fa0a8f22bcb
[   10.059245][  T168] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   10.059707][  T168] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   10.059906][  T168] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   10.060098][  T168] RDX: 0000000000406360 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   10.060290][  T168] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   10.060482][  T168] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   10.060678][  T168] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   10.064674][  T168] ------------[ cut here ]------------
| [   10.064812][  T168] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/168
| [   10.065066][  T168] Modules linked in:
| [   10.065455][  T168] Tainted: [W]=WARN
[   10.065552][  T168] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.065718][  T168] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.065892][  T168] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   10.066347][  T168] RSP: 0018:ffa00000005d7a68 EFLAGS: 00010286
[   10.066510][  T168] RAX: 00000000ffffffa6 RBX: ff1100000e4ba900 RCX: 1ff40000000baf13
[   10.066708][  T168] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e4ba9bc
[   10.066905][  T168] RBP: ff1100000fac4000 R08: 1fe2200001c97539 R09: ff11000010022e80
[   10.067097][  T168] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   10.067290][  T168] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fac4000
[   10.067486][  T168] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   10.067713][  T168] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.067875][  T168] CR2: 00007fa0a8f22bc0 CR3: 000000000da86001 CR4: 0000000000771ef0
[   10.068071][  T168] PKRU: 55555554
[   10.068168][  T168] Call Trace:
[   10.068264][  T168]  <TASK>
[   10.068330][  T168]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   10.068461][  T168]  ? notifier_call_chain (kernel/notifier.c:85)
[   10.068595][  T168]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   10.068694][  T168]  register_netdevice (net/core/dev.c:11488)
[   10.068830][  T168]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   10.068994][  T168]  register_netdev (net/core/dev.c:11552)
[   10.069124][  T168]  sit_init_net (net/ipv6/sit.c:1860)
[   10.069255][  T168]  ops_init (net/core/net_namespace.c:137)
[   10.069356][  T168]  setup_net (net/core/net_namespace.c:446)
[   10.069453][  T168]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   10.069584][  T168]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   10.069713][  T168]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   10.069846][  T168]  copy_net_ns (net/core/net_namespace.c:579)
[   10.069976][  T168]  create_new_namespaces (kernel/nsproxy.c:132)
[   10.070108][  T168]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   10.070239][  T168]  ksys_unshare (kernel/fork.c:3243)
[   10.070367][  T168]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   10.070495][  T168]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   10.070626][  T168]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.070760][  T168]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   10.070892][  T168]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.071023][  T168]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   10.071152][  T168]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   10.071280][  T168]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   10.071408][  T168]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   10.071536][  T168]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   10.071668][  T168]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.071833][  T168] RIP: 0033:0x7fa0a8f22bcb
[   10.071967][  T168] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   10.072422][  T168] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   10.072619][  T168] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   10.072812][  T168] RDX: 0000000000406360 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   10.073004][  T168] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   10.073193][  T168] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   10.073384][  T168] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   10.083742][  T168] ------------[ cut here ]------------
| [   10.083878][  T168] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/168
| [   10.084134][  T168] Modules linked in:
| [   10.084524][  T168] Tainted: [W]=WARN
[   10.084629][  T168] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.084798][  T168] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.084966][  T168] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   10.085420][  T168] RSP: 0018:ffa00000005d7a78 EFLAGS: 00010286
[   10.085587][  T168] RAX: 00000000ffffffa6 RBX: ff1100000cfc5a80 RCX: 1ff40000000baf15
[   10.085784][  T168] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cfc5b3c
[   10.085976][  T168] RBP: ff1100000fc81000 R08: 1fe22000019f8b69 R09: ff11000010022e80
[   10.086168][  T168] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   10.086359][  T168] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fc81000
[   10.086555][  T168] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   10.086788][  T168] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.086951][  T168] CR2: 00007fa0a8f22bc0 CR3: 000000000da86001 CR4: 0000000000771ef0
[   10.087145][  T168] PKRU: 55555554
[   10.087241][  T168] Call Trace:
[   10.087337][  T168]  <TASK>
[   10.087404][  T168]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   10.087533][  T168]  ? notifier_call_chain (kernel/notifier.c:85)
[   10.087665][  T168]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   10.087767][  T168]  register_netdevice (net/core/dev.c:11488)
[   10.087897][  T168]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   10.088058][  T168]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.088189][  T168]  register_netdev (net/core/dev.c:11552)
[   10.088320][  T168]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   10.088449][  T168]  ops_init (net/core/net_namespace.c:137)
[   10.088546][  T168]  setup_net (net/core/net_namespace.c:446)
[   10.088646][  T168]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   10.088777][  T168]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   10.088905][  T168]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   10.089036][  T168]  copy_net_ns (net/core/net_namespace.c:579)
[   10.089167][  T168]  create_new_namespaces (kernel/nsproxy.c:132)
[   10.089298][  T168]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   10.089428][  T168]  ksys_unshare (kernel/fork.c:3243)
[   10.089557][  T168]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   10.089689][  T168]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   10.089821][  T168]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.089950][  T168]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   10.090080][  T168]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.090211][  T168]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   10.090338][  T168]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   10.090465][  T168]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   10.090596][  T168]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   10.090723][  T168]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   10.090857][  T168]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.091015][  T168] RIP: 0033:0x7fa0a8f22bcb
[   10.091175][  T168] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   10.091634][  T168] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   10.091833][  T168] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   10.092029][  T168] RDX: 0000000000406360 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   10.092219][  T168] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   10.092408][  T168] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   10.092604][  T168] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   11.101417][   T12] ------------[ cut here ]------------
| [   11.101592][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   11.101855][   T12] Modules linked in:
| [   11.102238][   T12] Tainted: [W]=WARN
[   11.102338][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.102493][   T12] Workqueue: netns cleanup_net
[   11.102624][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.102789][   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
[   11.103239][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   11.103409][   T12] RAX: 00000000ffffffa6 RBX: ff11000009726900 RCX: 1ff4000000018eed
[   11.103608][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000097269bc
[   11.103794][   T12] RBP: ff1100000fc81000 R08: 1fe22000012e4d39 R09: ff11000001aed1d0
[   11.103970][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   11.104157][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   11.104340][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   11.104585][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.104739][   T12] CR2: 00000000004090e8 CR3: 0000000044d4d003 CR4: 0000000000771ef0
[   11.104936][   T12] PKRU: 55555554
[   11.105025][   T12] Call Trace:
[   11.105129][   T12]  <TASK>
[   11.105193][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   11.105361][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   11.105520][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   11.105641][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   11.105768][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   11.105910][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   11.106034][   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)
[   11.106152][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   11.106274][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   11.106390][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.106510][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   11.106639][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   11.106760][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   11.106878][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   11.106993][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.107116][   T12]  process_one_work (kernel/workqueue.c:3314)
[   11.107246][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   11.107386][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.107529][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   11.107662][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   11.107802][   T12]  kthread (kernel/kthread.c:436)
[   11.107906][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   11.108069][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   11.108199][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   11.108325][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   11.108478][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   11.108609][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   11.108729][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   11.111071][   T12] ------------[ cut here ]------------
| [   11.111188][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   11.111439][   T12] Modules linked in:
| [   11.112178][   T12] Tainted: [W]=WARN
[   11.112266][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.112411][   T12] Workqueue: netns cleanup_net
[   11.112533][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.112689][   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
[   11.113110][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   11.113258][   T12] RAX: 00000000ffffffa6 RBX: ff11000009727a80 RCX: 1ff4000000018eed
[   11.113431][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009727b3c
[   11.113610][   T12] RBP: ff1100000fac4000 R08: 1fe22000012e4f69 R09: ff11000001aed1d0
[   11.113789][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   11.113968][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   11.114147][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   11.114353][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.114501][   T12] CR2: 00000000004090e8 CR3: 0000000044d4d003 CR4: 0000000000771ef0
[   11.114678][   T12] PKRU: 55555554
[   11.114771][   T12] Call Trace:
[   11.114859][   T12]  <TASK>
[   11.114920][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   11.115069][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   11.115214][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   11.115343][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   11.115461][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   11.115581][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   11.115699][   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)
[   11.115824][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   11.115944][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   11.116061][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.116182][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   11.116300][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   11.116418][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   11.116536][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   11.116660][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.116783][   T12]  process_one_work (kernel/workqueue.c:3314)
[   11.116902][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   11.117018][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.117139][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   11.117260][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   11.117376][   T12]  kthread (kernel/kthread.c:436)
[   11.117465][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   11.117612][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   11.117729][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   11.117852][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   11.117998][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   11.118114][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   11.118231][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   11.120374][   T12] ------------[ cut here ]------------
| [   11.120492][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   11.120725][   T12] Modules linked in:
| [   11.121131][   T12] Tainted: [W]=WARN
[   11.121221][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.121365][   T12] Workqueue: netns cleanup_net
[   11.121487][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.121640][   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
[   11.122060][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   11.122209][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c7fb000 RCX: 1ff4000000018eed
[   11.122381][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c7fb0bc
[   11.122557][   T12] RBP: ff1100000f3c4000 R08: 1fe22000018ff619 R09: ff11000001aed1d0
[   11.122738][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   11.122911][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   11.123089][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   11.123303][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.123448][   T12] CR2: 00000000004090e8 CR3: 0000000044d4d003 CR4: 0000000000771ef0
[   11.123629][   T12] PKRU: 55555554
[   11.123716][   T12] Call Trace:
[   11.123806][   T12]  <TASK>
[   11.123867][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   11.124017][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   11.124167][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   11.124285][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   11.124407][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   11.124524][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   11.124644][   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)
[   11.124767][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   11.124885][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   11.125001][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.125120][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   11.125242][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   11.125358][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   11.125477][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   11.125596][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.125713][   T12]  process_one_work (kernel/workqueue.c:3314)
[   11.125835][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   11.125952][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.126072][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   11.126191][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   11.126308][   T12]  kthread (kernel/kthread.c:436)
[   11.126401][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   11.126544][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   11.126663][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   11.126786][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   11.126935][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   11.127051][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   11.127168][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   11.129130][   T12] ------------[ cut here ]------------
| [   11.129244][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   11.129471][   T12] Modules linked in:
| [   11.129826][   T12] Tainted: [W]=WARN
[   11.129913][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.130058][   T12] Workqueue: netns cleanup_net
[   11.130177][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.130327][   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
[   11.130746][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   11.130892][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c7fb380 RCX: 1ff4000000018eed
[   11.131063][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c7fb43c
[   11.131233][   T12] RBP: ff11000002419000 R08: 1fe22000018ff689 R09: ff11000001aed1d0
[   11.131406][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   11.131583][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   11.131763][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   11.131966][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.132112][   T12] CR2: 00000000004090e8 CR3: 0000000044d4d003 CR4: 0000000000771ef0
[   11.132287][   T12] PKRU: 55555554
[   11.132374][   T12] Call Trace:
[   11.132460][   T12]  <TASK>
[   11.132521][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   11.132674][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   11.132823][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   11.132940][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   11.133058][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   11.133172][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   11.133290][   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)
[   11.133407][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   11.133527][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   11.133646][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.133770][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   11.133887][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   11.134003][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   11.134120][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   11.134236][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.134354][   T12]  process_one_work (kernel/workqueue.c:3314)
[   11.134478][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   11.134598][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.134719][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   11.134846][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   11.134962][   T12]  kthread (kernel/kthread.c:436)
[   11.135051][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   11.135198][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   11.135318][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   11.135436][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   11.135589][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   11.135706][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   11.135828][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   11.137825][   T12] ------------[ cut here ]------------
| [   11.137939][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   11.138164][   T12] Modules linked in:
| [   11.138517][   T12] Tainted: [W]=WARN
[   11.138609][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.138759][   T12] Workqueue: netns cleanup_net
[   11.138881][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.139032][   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
[   11.139446][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   11.139597][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c7fb700 RCX: 1ff4000000018eed
[   11.139774][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c7fb7bc
[   11.139947][   T12] RBP: ff1100000fec9000 R08: 1fe22000018ff6f9 R09: ff11000001aed1d0
[   11.140121][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   11.140293][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   11.140467][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   11.140673][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.140825][   T12] CR2: 00000000004090e8 CR3: 0000000044d4d003 CR4: 0000000000771ef0
[   11.141005][   T12] PKRU: 55555554
[   11.141104][   T12] Call Trace:
[   11.141190][   T12]  <TASK>
[   11.141254][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   11.141406][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   11.141550][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   11.141668][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   11.141794][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   11.141912][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   11.142030][   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)
[   11.142147][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   11.142266][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   11.142381][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.142502][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   11.142623][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   11.142744][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   11.142863][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   11.142979][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.143100][   T12]  process_one_work (kernel/workqueue.c:3314)
[   11.143220][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   11.143336][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.143458][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   11.143587][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   11.143704][   T12]  kthread (kernel/kthread.c:436)
[   11.143797][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   11.143942][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   11.144060][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   11.144178][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   11.144324][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   11.144442][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   11.144559][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   11.158475][  T170] ------------[ cut here ]------------
| [   11.158666][  T170] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/170
| [   11.159004][  T170] Modules linked in:
| [   11.159496][  T170] Tainted: [W]=WARN
[   11.159647][  T170] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.159869][  T170] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.160086][  T170] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   11.160603][  T170] RSP: 0018:ffa0000000857a80 EFLAGS: 00010286
[   11.160829][  T170] RAX: 00000000ffffffa6 RBX: ff1100000c744580 RCX: 1ff400000010af16
[   11.161072][  T170] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c74463c
[   11.161317][  T170] RBP: ff1100000f3e4000 R08: 1fe22000018e88c9 R09: ff11000009b5ae80
[   11.161559][  T170] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   11.161820][  T170] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f3e4000
[   11.162065][  T170] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   11.162349][  T170] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.162564][  T170] CR2: 00007fa0a8f22bc0 CR3: 0000000010a7b001 CR4: 0000000000771ef0
[   11.162831][  T170] PKRU: 55555554
[   11.162977][  T170] Call Trace:
[   11.163124][  T170]  <TASK>
[   11.163239][  T170]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   11.163420][  T170]  ? notifier_call_chain (kernel/notifier.c:85)
[   11.163611][  T170]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   11.163773][  T170]  register_netdevice (net/core/dev.c:11488)
[   11.163955][  T170]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   11.164166][  T170]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   11.164346][  T170]  register_netdev (net/core/dev.c:11552)
[   11.164523][  T170]  loopback_net_init (drivers/net/loopback.c:218)
[   11.164711][  T170]  ops_init (net/core/net_namespace.c:137)
[   11.164877][  T170]  setup_net (net/core/net_namespace.c:446)
[   11.165025][  T170]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   11.165205][  T170]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   11.165386][  T170]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   11.165568][  T170]  copy_net_ns (net/core/net_namespace.c:579)
[   11.165769][  T170]  create_new_namespaces (kernel/nsproxy.c:132)
[   11.165954][  T170]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   11.166136][  T170]  ksys_unshare (kernel/fork.c:3243)
[   11.166315][  T170]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.166495][  T170]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   11.166682][  T170]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.166884][  T170]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   11.167065][  T170]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.167246][  T170]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   11.167429][  T170]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   11.167616][  T170]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.167809][  T170]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.167987][  T170]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.168164][  T170]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.168374][  T170] RIP: 0033:0x7fa0a8f22bcb
[   11.168558][  T170] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   11.169091][  T170] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   11.169338][  T170] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   11.169586][  T170] RDX: 0000000000406360 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   11.169842][  T170] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   11.170083][  T170] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   11.170323][  T170] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   11.172632][   T12] ------------[ cut here ]------------
| [   11.172769][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   11.173003][   T12] Modules linked in:
| [   11.173365][   T12] Tainted: [W]=WARN
[   11.173454][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.173617][   T12] Workqueue: netns cleanup_net
[   11.174216][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.174423][   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
[   11.174906][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   11.175069][   T12] RAX: 00000000ffffffa6 RBX: ff1100000ba93000 RCX: 1ff4000000018ed5
[   11.175244][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ba930bc
[   11.175420][   T12] RBP: ff1100000ea99000 R08: 1fe2200001752619 R09: ff11000001aed1d0
[   11.175601][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   11.175829][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   11.176009][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   11.176216][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.176367][   T12] CR2: 00000000004090e8 CR3: 0000000044d4d003 CR4: 0000000000771ef0
[   11.176545][   T12] PKRU: 55555554
[   11.176642][   T12] Call Trace:
[   11.176731][   T12]  <TASK>
[   11.176840][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   11.176992][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   11.177141][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   11.177264][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   11.177384][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   11.177502][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   11.177624][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   11.177792][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   11.177913][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   11.178031][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.178153][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   11.178273][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   11.178390][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   11.178509][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   11.178632][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.178809][   T12]  process_one_work (kernel/workqueue.c:3314)
[   11.178979][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   11.179098][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.179222][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   11.179345][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   11.179463][   T12]  kthread (kernel/kthread.c:436)
[   11.179553][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   11.179707][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   11.179874][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   11.179993][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   11.180142][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   11.180260][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   11.180379][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   11.198175][  T170] ------------[ cut here ]------------
| [   11.198356][  T170] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/170
| [   11.198666][  T170] Modules linked in:
| [   11.199217][  T170] Tainted: [W]=WARN
[   11.199364][  T170] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.199580][  T170] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.199811][  T170] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   11.200317][  T170] RSP: 0018:ffa0000000857918 EFLAGS: 00010286
[   11.200527][  T170] RAX: 00000000ffffffa6 RBX: ff1100000d9b5000 RCX: 1ff400000010aee9
[   11.200784][  T170] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d9b50bc
[   11.201024][  T170] RBP: ff11000010229000 R08: 1fe2200001b36a19 R09: ff11000009b5ae80
[   11.201261][  T170] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   11.201507][  T170] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000010229000
[   11.201768][  T170] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   11.202041][  T170] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.202249][  T170] CR2: 00007fa0a8f22bc0 CR3: 0000000010a7b001 CR4: 0000000000771ef0
[   11.202495][  T170] PKRU: 55555554
[   11.202647][  T170] Call Trace:
[   11.202802][  T170]  <TASK>
[   11.202917][  T170]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   11.203093][  T170]  ? notifier_call_chain (kernel/notifier.c:85)
[   11.203269][  T170]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   11.203415][  T170]  register_netdevice (net/core/dev.c:11488)
[   11.203598][  T170]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   11.203868][  T170]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   11.204048][  T170]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   11.204225][  T170]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   11.204400][  T170]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   11.204587][  T170]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   11.204780][  T170]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   11.204961][  T170]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   11.205141][  T170]  ops_init (net/core/net_namespace.c:137)
[   11.205289][  T170]  setup_net (net/core/net_namespace.c:446)
[   11.205434][  T170]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   11.205615][  T170]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   11.205804][  T170]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   11.205982][  T170]  copy_net_ns (net/core/net_namespace.c:579)
[   11.206161][  T170]  create_new_namespaces (kernel/nsproxy.c:132)
[   11.206341][  T170]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   11.206521][  T170]  ksys_unshare (kernel/fork.c:3243)
[   11.206706][  T170]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.206897][  T170]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   11.207071][  T170]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.207247][  T170]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   11.207425][  T170]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.207609][  T170]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   11.207803][  T170]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   11.207980][  T170]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.208156][  T170]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.208331][  T170]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.208511][  T170]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.208726][  T170] RIP: 0033:0x7fa0a8f22bcb
[   11.208922][  T170] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   11.209424][  T170] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   11.209671][  T170] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   11.209922][  T170] RDX: 0000000000406360 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   11.210163][  T170] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   11.210403][  T170] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   11.210648][  T170] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   11.214851][  T170] ------------[ cut here ]------------
| [   11.215026][  T170] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/170
| [   11.215326][  T170] Modules linked in:
| [   11.215833][  T170] Tainted: [W]=WARN
[   11.215978][  T170] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.216186][  T170] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.216401][  T170] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   11.216930][  T170] RSP: 0018:ffa00000008578f8 EFLAGS: 00010286
[   11.217140][  T170] RAX: 00000000ffffffa6 RBX: ff1100000be5d000 RCX: 1ff400000010aee5
[   11.217378][  T170] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000be5d0bc
[   11.217621][  T170] RBP: ff1100000f311000 R08: 1fe22000017cba19 R09: ff11000009b5ae80
[   11.217878][  T170] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   11.218118][  T170] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f311000
[   11.218359][  T170] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   11.218641][  T170] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.218988][  T170] CR2: 00007fa0a8f22bc0 CR3: 0000000010a7b001 CR4: 0000000000771ef0
[   11.219240][  T170] PKRU: 55555554
[   11.219384][  T170] Call Trace:
[   11.219529][  T170]  <TASK>
[   11.219650][  T170]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   11.219843][  T170]  ? notifier_call_chain (kernel/notifier.c:85)
[   11.220021][  T170]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   11.220169][  T170]  register_netdevice (net/core/dev.c:11488)
[   11.220352][  T170]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   11.220561][  T170]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   11.220761][  T170]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   11.220942][  T170]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   11.221129][  T170]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   11.221309][  T170]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   11.221488][  T170]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   11.221676][  T170]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   11.221872][  T170]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   11.222051][  T170]  vti_init_net (net/ipv4/ip_vti.c:517)
[   11.222229][  T170]  ops_init (net/core/net_namespace.c:137)
[   11.222377][  T170]  setup_net (net/core/net_namespace.c:446)
[   11.222522][  T170]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   11.222709][  T170]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   11.222901][  T170]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   11.223083][  T170]  copy_net_ns (net/core/net_namespace.c:579)
[   11.223262][  T170]  create_new_namespaces (kernel/nsproxy.c:132)
[   11.223443][  T170]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   11.223629][  T170]  ksys_unshare (kernel/fork.c:3243)
[   11.223818][  T170]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.223998][  T170]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   11.224174][  T170]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.224355][  T170]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   11.224534][  T170]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.224721][  T170]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   11.224912][  T170]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   11.225089][  T170]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.225266][  T170]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.225443][  T170]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.225626][  T170]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.225847][  T170] RIP: 0033:0x7fa0a8f22bcb
[   11.226031][  T170] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   11.226540][  T170] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   11.226803][  T170] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   11.227047][  T170] RDX: 0000000000406360 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   11.227287][  T170] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   11.227526][  T170] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   11.227784][  T170] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   11.232413][  T170] ------------[ cut here ]------------
| [   11.232598][  T170] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/170
| [   11.232914][  T170] Modules linked in:
| [   11.233393][  T170] Tainted: [W]=WARN
[   11.233539][  T170] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.234135][  T170] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.234413][  T170] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   11.234996][  T170] RSP: 0018:ffa0000000857a78 EFLAGS: 00010286
[   11.235260][  T170] RAX: 00000000ffffffa6 RBX: ff1100000937b700 RCX: 1ff400000010af15
[   11.235552][  T170] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000937b7bc
[   11.235865][  T170] RBP: ff1100000f8e1000 R08: 1fe220000126f6f9 R09: ff11000009b5ae80
[   11.236156][  T170] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   11.236457][  T170] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f8e1000
[   11.236775][  T170] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   11.237104][  T170] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.237367][  T170] CR2: 00007fa0a8f22bc0 CR3: 0000000010a7b001 CR4: 0000000000771ef0
[   11.237671][  T170] PKRU: 55555554
[   11.237881][  T170] Call Trace:
[   11.238076][  T170]  <TASK>
[   11.238243][  T170]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   11.238477][  T170]  ? notifier_call_chain (kernel/notifier.c:85)
[   11.238714][  T170]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   11.238927][  T170]  register_netdevice (net/core/dev.c:11488)
[   11.239161][  T170]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   11.239421][  T170]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.239660][  T170]  register_netdev (net/core/dev.c:11552)
[   11.239907][  T170]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   11.240139][  T170]  ops_init (net/core/net_namespace.c:137)
[   11.240340][  T170]  setup_net (net/core/net_namespace.c:446)
[   11.240537][  T170]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   11.240786][  T170]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   11.241015][  T170]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   11.241245][  T170]  copy_net_ns (net/core/net_namespace.c:579)
[   11.241477][  T170]  create_new_namespaces (kernel/nsproxy.c:132)
[   11.241719][  T170]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   11.241965][  T170]  ksys_unshare (kernel/fork.c:3243)
[   11.242194][  T170]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.242422][  T170]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   11.242656][  T170]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.242902][  T170]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   11.243135][  T170]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.243371][  T170]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   11.243609][  T170]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   11.243852][  T170]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.244081][  T170]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.244308][  T170]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.244538][  T170]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.244815][  T170] RIP: 0033:0x7fa0a8f22bcb
[   11.245052][  T170] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   11.245620][  T170] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   11.245927][  T170] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   11.246222][  T170] RDX: 0000000000406360 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   11.246511][  T170] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   11.246821][  T170] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   11.247110][  T170] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   11.252566][  T170] ------------[ cut here ]------------
| [   11.252714][  T170] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: scm_rights/170
| [   11.252984][  T170] Modules linked in:
| [   11.253398][  T170] Tainted: [W]=WARN
[   11.253497][  T170] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.253664][  T170] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.253842][  T170] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   11.254308][  T170] RSP: 0018:ffa0000000857a68 EFLAGS: 00010286
[   11.254474][  T170] RAX: 00000000ffffffa6 RBX: ff11000008f83a80 RCX: 1ff400000010af13
[   11.254674][  T170] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000008f83b3c
[   11.254877][  T170] RBP: ff1100000f359000 R08: 1fe22000011f0769 R09: ff11000009b5ae80
[   11.255073][  T170] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   11.255273][  T170] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f359000
[   11.255470][  T170] FS:  00007fa0a8e27740(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   11.255706][  T170] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.255877][  T170] CR2: 0000564716d0bcf0 CR3: 0000000010a7b004 CR4: 0000000000771ef0
[   11.256074][  T170] PKRU: 55555554
[   11.256170][  T170] Call Trace:
[   11.256267][  T170]  <TASK>
[   11.256335][  T170]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   11.256467][  T170]  ? notifier_call_chain (kernel/notifier.c:85)
[   11.256600][  T170]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   11.256701][  T170]  register_netdevice (net/core/dev.c:11488)
[   11.256840][  T170]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   11.257005][  T170]  register_netdev (net/core/dev.c:11552)
[   11.257135][  T170]  sit_init_net (net/ipv6/sit.c:1860)
[   11.257266][  T170]  ops_init (net/core/net_namespace.c:137)
[   11.257366][  T170]  setup_net (net/core/net_namespace.c:446)
[   11.257464][  T170]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   11.257597][  T170]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   11.257726][  T170]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   11.257863][  T170]  copy_net_ns (net/core/net_namespace.c:579)
[   11.257994][  T170]  create_new_namespaces (kernel/nsproxy.c:132)
[   11.258127][  T170]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   11.258258][  T170]  ksys_unshare (kernel/fork.c:3243)
[   11.258388][  T170]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.258521][  T170]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   11.258653][  T170]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.258789][  T170]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   11.258921][  T170]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.259051][  T170]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   11.259180][  T170]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   11.259311][  T170]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.259442][  T170]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.259579][  T170]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.259710][  T170]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.259877][  T170] RIP: 0033:0x7fa0a8f22bcb
[   11.260016][  T170] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   11.260484][  T170] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   11.260685][  T170] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   11.260888][  T170] RDX: 0000000000406360 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   11.261085][  T170] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   11.261283][  T170] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   11.261480][  T170] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   11.266170][  T170] ------------[ cut here ]------------
| [   11.266309][  T170] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: scm_rights/170
| [   11.266566][  T170] Modules linked in:
| [   11.267028][  T170] Tainted: [W]=WARN
[   11.267125][  T170] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.267289][  T170] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.267458][  T170] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   11.267927][  T170] RSP: 0018:ffa0000000857a78 EFLAGS: 00010286
[   11.268093][  T170] RAX: 00000000ffffffa6 RBX: ff11000010866040 RCX: 1ff400000010af15
[   11.268287][  T170] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000108660fc
[   11.268480][  T170] RBP: ff1100000fb2c000 R08: 1fe220000210cc21 R09: ff11000009b5ae80
[   11.268680][  T170] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   11.268878][  T170] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fb2c000
[   11.269073][  T170] FS:  00007fa0a8e27740(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   11.269301][  T170] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.269465][  T170] CR2: 0000564716d0bcf0 CR3: 0000000010a7b004 CR4: 0000000000771ef0
[   11.269665][  T170] PKRU: 55555554
[   11.269771][  T170] Call Trace:
[   11.269869][  T170]  <TASK>
[   11.269937][  T170]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   11.270067][  T170]  ? notifier_call_chain (kernel/notifier.c:85)
[   11.270197][  T170]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   11.270300][  T170]  register_netdevice (net/core/dev.c:11488)
[   11.270432][  T170]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   11.270597][  T170]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.270737][  T170]  register_netdev (net/core/dev.c:11552)
[   11.270867][  T170]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   11.271000][  T170]  ops_init (net/core/net_namespace.c:137)
[   11.271100][  T170]  setup_net (net/core/net_namespace.c:446)
[   11.271198][  T170]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   11.271328][  T170]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   11.271459][  T170]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   11.271599][  T170]  copy_net_ns (net/core/net_namespace.c:579)
[   11.271731][  T170]  create_new_namespaces (kernel/nsproxy.c:132)
[   11.271870][  T170]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   11.272000][  T170]  ksys_unshare (kernel/fork.c:3243)
[   11.272129][  T170]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.272258][  T170]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   11.272387][  T170]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.272521][  T170]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   11.272657][  T170]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.272794][  T170]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   11.272925][  T170]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   11.273053][  T170]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.273183][  T170]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.273313][  T170]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.273442][  T170]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.273608][  T170] RIP: 0033:0x7fa0a8f22bcb
[   11.273748][  T170] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   11.274214][  T170] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   11.274411][  T170] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   11.274610][  T170] RDX: 0000000000406360 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   11.274810][  T170] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   11.275004][  T170] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   11.275196][  T170] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   12.287757][   T12] ------------[ cut here ]------------
| [   12.287998][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   12.288305][   T12] Modules linked in:
| [   12.288799][   T12] Tainted: [W]=WARN
[   12.288936][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.289132][   T12] Workqueue: netns cleanup_net
[   12.289303][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.289525][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.290032][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   12.290248][   T12] RAX: 00000000ffffffa6 RBX: ff1100000937a740 RCX: 1ff4000000018eed
[   12.290502][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000937a7fc
[   12.290759][   T12] RBP: ff1100000fb2c000 R08: 1fe220000126f501 R09: ff11000001aed1d0
[   12.290995][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   12.291239][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   12.291483][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   12.291774][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.291968][   T12] CR2: 00007fa0a8f22bc0 CR3: 0000000044d4d005 CR4: 0000000000771ef0
[   12.292212][   T12] PKRU: 55555554
[   12.292368][   T12] Call Trace:
[   12.292510][   T12]  <TASK>
[   12.292623][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   12.292846][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   12.293043][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   12.293229][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   12.293415][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   12.293601][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   12.293803][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   12.293988][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   12.294169][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   12.294344][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.294531][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   12.294709][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   12.294892][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   12.295064][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.295248][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.295434][   T12]  process_one_work (kernel/workqueue.c:3314)
[   12.295631][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   12.295823][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.296011][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   12.296192][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   12.296368][   T12]  kthread (kernel/kthread.c:436)
[   12.296510][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.296721][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.296906][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   12.297079][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   12.297272][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   12.297449][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.297625][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   12.308220][   T12] ------------[ cut here ]------------
| [   12.308358][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   12.308592][   T12] Modules linked in:
| [   12.308959][   T12] Tainted: [W]=WARN
[   12.309050][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.309197][   T12] Workqueue: netns cleanup_net
[   12.309320][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.309478][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.309917][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   12.310066][   T12] RAX: 00000000ffffffa6 RBX: ff11000010867a80 RCX: 1ff4000000018eed
[   12.310241][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000010867b3c
[   12.310419][   T12] RBP: ff1100000f359000 R08: 1fe220000210cf69 R09: ff11000001aed1d0
[   12.310602][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   12.310782][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   12.310959][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   12.311168][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.311319][   T12] CR2: 00007fa0a8e9a0a0 CR3: 000000000da86003 CR4: 0000000000771ef0
[   12.311502][   T12] PKRU: 55555554
[   12.311593][   T12] Call Trace:
[   12.311682][   T12]  <TASK>
[   12.311748][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   12.311899][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   12.312044][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   12.312163][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   12.312283][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   12.312405][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   12.312524][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   12.312646][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   12.312772][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   12.312888][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.313008][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   12.313126][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   12.313244][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   12.313364][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.313482][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.313606][   T12]  process_one_work (kernel/workqueue.c:3314)
[   12.313728][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   12.313851][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.313973][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   12.314097][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   12.314213][   T12]  kthread (kernel/kthread.c:436)
[   12.314301][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.314447][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.314565][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   12.314686][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   12.314836][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   12.314960][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.315078][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   12.317281][   T12] ------------[ cut here ]------------
| [   12.317398][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   12.317634][   T12] Modules linked in:
| [   12.318768][   T12] Tainted: [W]=WARN
[   12.318858][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.319006][   T12] Workqueue: netns cleanup_net
[   12.319131][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.319284][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.319721][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   12.319874][   T12] RAX: 00000000ffffffa6 RBX: ff1100000946b8c0 RCX: 1ff4000000018eed
[   12.320050][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000946b97c
[   12.320225][   T12] RBP: ff1100000f8e1000 R08: 1fe220000128d731 R09: ff11000001aed1d0
[   12.320403][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   12.320583][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   12.320766][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   12.320972][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.321119][   T12] CR2: 00007fa0a8e9a0a0 CR3: 000000000da86003 CR4: 0000000000771ef0
[   12.321299][   T12] PKRU: 55555554
[   12.321387][   T12] Call Trace:
[   12.321474][   T12]  <TASK>
[   12.321538][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   12.321692][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   12.321842][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   12.321960][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   12.322081][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   12.322198][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   12.322317][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   12.322439][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   12.322559][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   12.322681][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.322806][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   12.322924][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   12.323042][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   12.323162][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.323280][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.323401][   T12]  process_one_work (kernel/workqueue.c:3314)
[   12.323522][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   12.323648][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.323778][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   12.323900][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   12.324016][   T12]  kthread (kernel/kthread.c:436)
[   12.324104][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.324251][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.324368][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   12.324486][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   12.324636][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   12.324758][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.324875][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   12.326899][   T12] ------------[ cut here ]------------
| [   12.327015][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   12.327242][   T12] Modules linked in:
| [   12.327600][   T12] Tainted: [W]=WARN
[   12.327688][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.327839][   T12] Workqueue: netns cleanup_net
[   12.327960][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.328112][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.328534][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   12.328684][   T12] RAX: 00000000ffffffa6 RBX: ff1100000946aac0 RCX: 1ff4000000018eed
[   12.328862][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000946ab7c
[   12.329039][   T12] RBP: ff1100000f311000 R08: 1fe220000128d571 R09: ff11000001aed1d0
[   12.329214][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   12.329388][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   12.329564][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   12.329785][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.329931][   T12] CR2: 00007fa0a8e9a0a0 CR3: 000000000da86003 CR4: 0000000000771ef0
[   12.330108][   T12] PKRU: 55555554
[   12.330200][   T12] Call Trace:
[   12.330288][   T12]  <TASK>
[   12.330349][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   12.330499][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   12.330650][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   12.330773][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   12.330895][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   12.331012][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   12.331134][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   12.331257][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   12.331376][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   12.331492][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.331651][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   12.331773][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   12.331890][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   12.332008][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.332126][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.332245][   T12]  process_one_work (kernel/workqueue.c:3314)
[   12.332365][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   12.332493][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.332619][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   12.332745][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   12.332861][   T12]  kthread (kernel/kthread.c:436)
[   12.332953][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.333098][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.333221][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   12.333342][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   12.333499][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   12.333624][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.333750][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   12.335706][   T12] ------------[ cut here ]------------
| [   12.335835][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   12.336066][   T12] Modules linked in:
| [   12.336421][   T12] Tainted: [W]=WARN
[   12.336515][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.336668][   T12] Workqueue: netns cleanup_net
[   12.336795][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.336949][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.337379][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   12.337528][   T12] RAX: 00000000ffffffa6 RBX: ff1100000946a040 RCX: 1ff4000000018eed
[   12.337709][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000946a0fc
[   12.337890][   T12] RBP: ff11000010229000 R08: 1fe220000128d421 R09: ff11000001aed1d0
[   12.338066][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   12.338244][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   12.338421][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   12.338633][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.338785][   T12] CR2: 00007fa0a8e9a0a0 CR3: 000000000da86003 CR4: 0000000000771ef0
[   12.338968][   T12] PKRU: 55555554
[   12.339055][   T12] Call Trace:
[   12.339149][   T12]  <TASK>
[   12.339211][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   12.339361][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   12.339507][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   12.339629][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   12.339757][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   12.339879][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   12.339997][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   12.340117][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   12.340237][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   12.340353][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.340475][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   12.340597][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   12.340714][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   12.340846][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.340963][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.341083][   T12]  process_one_work (kernel/workqueue.c:3314)
[   12.341203][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   12.341321][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.341443][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   12.341564][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   12.341689][   T12]  kthread (kernel/kthread.c:436)
[   12.341784][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.341930][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.342052][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   12.342170][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   12.342317][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   12.342435][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.342557][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   12.357227][  T173] ------------[ cut here ]------------
| [   12.357374][  T173] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/173
| [   12.357646][  T173] Modules linked in:
| [   12.358058][  T173] Tainted: [W]=WARN
[   12.358156][  T173] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.358320][  T173] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.358489][  T173] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.358963][  T173] RSP: 0018:ffa0000000867a80 EFLAGS: 00010286
[   12.359127][  T173] RAX: 00000000ffffffa6 RBX: ff1100000cfbd8c0 RCX: 1ff400000010cf16
[   12.359323][  T173] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cfbd97c
[   12.359519][  T173] RBP: ff1100000e9a4000 R08: 1fe22000019f7b31 R09: ff11000009b52e80
[   12.359723][  T173] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   12.359922][  T173] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e9a4000
[   12.360119][  T173] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   12.360350][  T173] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.360516][  T173] CR2: 00007fa0a8f22bc0 CR3: 000000001021c003 CR4: 0000000000771ef0
[   12.360717][  T173] PKRU: 55555554
[   12.360907][  T173] Call Trace:
[   12.361007][  T173]  <TASK>
[   12.361075][  T173]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.361204][  T173]  ? notifier_call_chain (kernel/notifier.c:85)
[   12.361336][  T173]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.361438][  T173]  register_netdevice (net/core/dev.c:11488)
[   12.361570][  T173]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.361739][  T173]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   12.361871][  T173]  register_netdev (net/core/dev.c:11552)
[   12.362001][  T173]  loopback_net_init (drivers/net/loopback.c:218)
[   12.362134][  T173]  ops_init (net/core/net_namespace.c:137)
[   12.362235][  T173]  setup_net (net/core/net_namespace.c:446)
[   12.362334][  T173]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   12.362466][  T173]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   12.362601][  T173]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   12.362737][  T173]  copy_net_ns (net/core/net_namespace.c:579)
[   12.362869][  T173]  create_new_namespaces (kernel/nsproxy.c:132)
[   12.363002][  T173]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   12.363133][  T173]  ksys_unshare (kernel/fork.c:3243)
[   12.363264][  T173]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   12.363393][  T173]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   12.363522][  T173]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.363656][  T173]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   12.363793][  T173]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.363924][  T173]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   12.364053][  T173]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.364184][  T173]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.364314][  T173]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.364444][  T173]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.364574][  T173]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.364744][  T173] RIP: 0033:0x7fa0a8f22bcb
[   12.364883][  T173] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   12.365345][  T173] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   12.365543][  T173] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   12.365746][  T173] RDX: 0000000000406360 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   12.365941][  T173] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   12.366136][  T173] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   12.366330][  T173] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   12.368212][   T12] ------------[ cut here ]------------
| [   12.368333][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   12.368563][   T12] Modules linked in:
| [   12.368930][   T12] Tainted: [W]=WARN
[   12.369029][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.369176][   T12] Workqueue: netns cleanup_net
[   12.369300][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.369453][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.370343][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   12.370492][   T12] RAX: 00000000ffffffa6 RBX: ff1100000946ae40 RCX: 1ff4000000018ed5
[   12.370673][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000946aefc
[   12.370900][   T12] RBP: ff1100000f3e4000 R08: 1fe220000128d5e1 R09: ff11000001aed1d0
[   12.371082][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   12.371257][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   12.371433][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   12.371641][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.371838][   T12] CR2: 00007fa0a8e9a0a0 CR3: 000000000da86003 CR4: 0000000000771ef0
[   12.372017][   T12] PKRU: 55555554
[   12.372104][   T12] Call Trace:
[   12.372191][   T12]  <TASK>
[   12.372253][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   12.372404][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   12.372603][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   12.372725][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   12.372896][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   12.373014][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   12.373131][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   12.373249][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   12.373376][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   12.373493][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.373617][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   12.373783][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   12.373905][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   12.374022][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.374138][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.374257][   T12]  process_one_work (kernel/workqueue.c:3314)
[   12.374378][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   12.374495][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.374621][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   12.374794][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   12.374911][   T12]  kthread (kernel/kthread.c:436)
[   12.375000][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.375146][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.375263][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   12.375379][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   12.375526][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   12.375648][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.375815][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   12.381479][  T173] ------------[ cut here ]------------
| [   12.381621][  T173] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/173
| [   12.381881][  T173] Modules linked in:
| [   12.382271][  T173] Tainted: [W]=WARN
[   12.382370][  T173] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.382531][  T173] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.382701][  T173] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.383161][  T173] RSP: 0018:ffa0000000867918 EFLAGS: 00010286
[   12.383321][  T173] RAX: 00000000ffffffa6 RBX: ff1100000eb38580 RCX: 1ff400000010cee9
[   12.383512][  T173] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000eb3863c
[   12.383705][  T173] RBP: ff1100000a339000 R08: 1fe2200001d670c9 R09: ff11000009b52e80
[   12.383909][  T173] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   12.384102][  T173] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a339000
[   12.384297][  T173] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   12.384521][  T173] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.384687][  T173] CR2: 00007fa0a8f22bc0 CR3: 000000001021c003 CR4: 0000000000771ef0
[   12.384885][  T173] PKRU: 55555554
[   12.384980][  T173] Call Trace:
[   12.385079][  T173]  <TASK>
[   12.385147][  T173]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.385277][  T173]  ? notifier_call_chain (kernel/notifier.c:85)
[   12.385405][  T173]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.385504][  T173]  register_netdevice (net/core/dev.c:11488)
[   12.385638][  T173]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.385804][  T173]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   12.385935][  T173]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   12.386067][  T173]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   12.386195][  T173]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   12.386326][  T173]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   12.386455][  T173]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   12.386588][  T173]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   12.386720][  T173]  ops_init (net/core/net_namespace.c:137)
[   12.386825][  T173]  setup_net (net/core/net_namespace.c:446)
[   12.386922][  T173]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   12.387051][  T173]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   12.387180][  T173]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   12.387311][  T173]  copy_net_ns (net/core/net_namespace.c:579)
[   12.387441][  T173]  create_new_namespaces (kernel/nsproxy.c:132)
[   12.387573][  T173]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   12.387704][  T173]  ksys_unshare (kernel/fork.c:3243)
[   12.387838][  T173]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   12.387967][  T173]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   12.388093][  T173]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.388220][  T173]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   12.388351][  T173]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.388480][  T173]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   12.388612][  T173]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.388744][  T173]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.388874][  T173]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.389004][  T173]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.389132][  T173]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.389291][  T173] RIP: 0033:0x7fa0a8f22bcb
[   12.389425][  T173] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   12.389893][  T173] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   12.390086][  T173] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   12.390276][  T173] RDX: 0000000000406360 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   12.390465][  T173] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   12.390662][  T173] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   12.390857][  T173] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   12.394592][  T173] ------------[ cut here ]------------
| [   12.394725][  T173] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/173
| [   12.394988][  T173] Modules linked in:
| [   12.395378][  T173] Tainted: [W]=WARN
[   12.395490][  T173] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.395656][  T173] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.395828][  T173] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.396286][  T173] RSP: 0018:ffa00000008678f8 EFLAGS: 00010286
[   12.396454][  T173] RAX: 00000000ffffffa6 RBX: ff110000028a8e40 RCX: 1ff400000010cee5
[   12.396650][  T173] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000028a8efc
[   12.396848][  T173] RBP: ff1100000fc19000 R08: 1fe22000005151e1 R09: ff11000009b52e80
[   12.397041][  T173] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   12.397237][  T173] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fc19000
[   12.397431][  T173] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   12.397659][  T173] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.397826][  T173] CR2: 00007fa0a8f22bc0 CR3: 000000001021c003 CR4: 0000000000771ef0
[   12.398020][  T173] PKRU: 55555554
[   12.398121][  T173] Call Trace:
[   12.398217][  T173]  <TASK>
[   12.398284][  T173]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.398413][  T173]  ? notifier_call_chain (kernel/notifier.c:85)
[   12.398542][  T173]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.398646][  T173]  register_netdevice (net/core/dev.c:11488)
[   12.398779][  T173]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.398939][  T173]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   12.399076][  T173]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   12.399205][  T173]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   12.399334][  T173]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   12.399464][  T173]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   12.399600][  T173]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   12.399732][  T173]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   12.399869][  T173]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   12.400005][  T173]  vti_init_net (net/ipv4/ip_vti.c:517)
[   12.400135][  T173]  ops_init (net/core/net_namespace.c:137)
[   12.400233][  T173]  setup_net (net/core/net_namespace.c:446)
[   12.400331][  T173]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   12.400460][  T173]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   12.400592][  T173]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   12.400724][  T173]  copy_net_ns (net/core/net_namespace.c:579)
[   12.400859][  T173]  create_new_namespaces (kernel/nsproxy.c:132)
[   12.400996][  T173]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   12.401127][  T173]  ksys_unshare (kernel/fork.c:3243)
[   12.401256][  T173]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   12.401385][  T173]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   12.401515][  T173]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.401649][  T173]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   12.401782][  T173]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.401917][  T173]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   12.402046][  T173]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.402175][  T173]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.402305][  T173]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.402435][  T173]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.402563][  T173]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.402728][  T173] RIP: 0033:0x7fa0a8f22bcb
[   12.402868][  T173] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   12.403329][  T173] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   12.403524][  T173] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   12.403723][  T173] RDX: 0000000000406360 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   12.403923][  T173] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   12.404115][  T173] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   12.404310][  T173] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   12.408379][  T173] ------------[ cut here ]------------
| [   12.408512][  T173] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/173
| [   12.408778][  T173] Modules linked in:
| [   12.409175][  T173] Tainted: [W]=WARN
[   12.409273][  T173] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.409433][  T173] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.409605][  T173] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.410070][  T173] RSP: 0018:ffa0000000867a78 EFLAGS: 00010286
[   12.410233][  T173] RAX: 00000000ffffffa6 RBX: ff110000097263c0 RCX: 1ff400000010cf15
[   12.410428][  T173] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000972647c
[   12.410633][  T173] RBP: ff1100000fb81000 R08: 1fe22000012e4c91 R09: ff11000009b52e80
[   12.410831][  T173] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   12.411024][  T173] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fb81000
[   12.411220][  T173] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   12.411452][  T173] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.411620][  T173] CR2: 00007fa0a8f22bc0 CR3: 000000001021c003 CR4: 0000000000771ef0
[   12.411819][  T173] PKRU: 55555554
[   12.411916][  T173] Call Trace:
[   12.412013][  T173]  <TASK>
[   12.412080][  T173]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.412210][  T173]  ? notifier_call_chain (kernel/notifier.c:85)
[   12.412344][  T173]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.412443][  T173]  register_netdevice (net/core/dev.c:11488)
[   12.412574][  T173]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.412743][  T173]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.412876][  T173]  register_netdev (net/core/dev.c:11552)
[   12.413005][  T173]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   12.413136][  T173]  ops_init (net/core/net_namespace.c:137)
[   12.413236][  T173]  setup_net (net/core/net_namespace.c:446)
[   12.413339][  T173]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   12.413468][  T173]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   12.413603][  T173]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   12.413739][  T173]  copy_net_ns (net/core/net_namespace.c:579)
[   12.413871][  T173]  create_new_namespaces (kernel/nsproxy.c:132)
[   12.414002][  T173]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   12.414136][  T173]  ksys_unshare (kernel/fork.c:3243)
[   12.414266][  T173]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   12.414395][  T173]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   12.414523][  T173]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.414655][  T173]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   12.414789][  T173]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.414920][  T173]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   12.415047][  T173]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.415182][  T173]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.415310][  T173]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.415439][  T173]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.415569][  T173]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.415738][  T173] RIP: 0033:0x7fa0a8f22bcb
[   12.415876][  T173] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   12.416337][  T173] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   12.416530][  T173] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   12.416727][  T173] RDX: 0000000000406360 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   12.416924][  T173] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   12.417118][  T173] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   12.417310][  T173] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   12.421302][  T173] ------------[ cut here ]------------
| [   12.421436][  T173] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/173
| [   12.421694][  T173] Modules linked in:
| [   12.422090][  T173] Tainted: [W]=WARN
[   12.422192][  T173] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.422353][  T173] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.422521][  T173] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.422988][  T173] RSP: 0018:ffa0000000867a68 EFLAGS: 00010286
[   12.423151][  T173] RAX: 00000000ffffffa6 RBX: ff1100000946bc40 RCX: 1ff400000010cf13
[   12.423342][  T173] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000946bcfc
[   12.423534][  T173] RBP: ff1100000fb44000 R08: 1fe220000128d7a1 R09: ff11000009b52e80
[   12.423789][  T173] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   12.423998][  T173] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fb44000
[   12.424193][  T173] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   12.424423][  T173] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.424594][  T173] CR2: 00007fa0a8f22bc0 CR3: 000000001021c003 CR4: 0000000000771ef0
[   12.424799][  T173] PKRU: 55555554
[   12.424895][  T173] Call Trace:
[   12.424991][  T173]  <TASK>
[   12.425057][  T173]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.425186][  T173]  ? notifier_call_chain (kernel/notifier.c:85)
[   12.425314][  T173]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.425414][  T173]  register_netdevice (net/core/dev.c:11488)
[   12.425544][  T173]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.425714][  T173]  register_netdev (net/core/dev.c:11552)
[   12.425846][  T173]  sit_init_net (net/ipv6/sit.c:1860)
[   12.425976][  T173]  ops_init (net/core/net_namespace.c:137)
[   12.426074][  T173]  setup_net (net/core/net_namespace.c:446)
[   12.426171][  T173]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   12.426298][  T173]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   12.426428][  T173]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   12.426561][  T173]  copy_net_ns (net/core/net_namespace.c:579)
[   12.426695][  T173]  create_new_namespaces (kernel/nsproxy.c:132)
[   12.426831][  T173]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   12.426960][  T173]  ksys_unshare (kernel/fork.c:3243)
[   12.427087][  T173]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   12.427216][  T173]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   12.427343][  T173]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.427476][  T173]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   12.427612][  T173]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.427745][  T173]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   12.427877][  T173]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.428008][  T173]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.428137][  T173]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.428263][  T173]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.428391][  T173]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.428555][  T173] RIP: 0033:0x7fa0a8f22bcb
[   12.428692][  T173] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   12.429153][  T173] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   12.429347][  T173] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   12.429539][  T173] RDX: 0000000000406360 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   12.429742][  T173] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   12.429932][  T173] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   12.430124][  T173] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   12.440677][  T173] ------------[ cut here ]------------
| [   12.440821][  T173] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/173
| [   12.441077][  T173] Modules linked in:
| [   12.441482][  T173] Tainted: [W]=WARN
[   12.441582][  T173] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.441747][  T173] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.441914][  T173] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.442372][  T173] RSP: 0018:ffa0000000867a78 EFLAGS: 00010286
[   12.442535][  T173] RAX: 00000000ffffffa6 RBX: ff1100000a14de00 RCX: 1ff400000010cf15
[   12.442738][  T173] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a14debc
[   12.442933][  T173] RBP: ff1100000e939000 R08: 1fe2200001429bd9 R09: ff11000009b52e80
[   12.443127][  T173] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   12.443320][  T173] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e939000
[   12.443517][  T173] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   12.443751][  T173] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.443914][  T173] CR2: 00007fa0a8f22bc0 CR3: 000000001021c003 CR4: 0000000000771ef0
[   12.444111][  T173] PKRU: 55555554
[   12.444207][  T173] Call Trace:
[   12.444302][  T173]  <TASK>
[   12.444370][  T173]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.444500][  T173]  ? notifier_call_chain (kernel/notifier.c:85)
[   12.444636][  T173]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.444739][  T173]  register_netdevice (net/core/dev.c:11488)
[   12.444873][  T173]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.445033][  T173]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.445166][  T173]  register_netdev (net/core/dev.c:11552)
[   12.445295][  T173]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   12.445425][  T173]  ops_init (net/core/net_namespace.c:137)
[   12.445525][  T173]  setup_net (net/core/net_namespace.c:446)
[   12.445627][  T173]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   12.445762][  T173]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   12.445893][  T173]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   12.446023][  T173]  copy_net_ns (net/core/net_namespace.c:579)
[   12.446154][  T173]  create_new_namespaces (kernel/nsproxy.c:132)
[   12.446287][  T173]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   12.446418][  T173]  ksys_unshare (kernel/fork.c:3243)
[   12.446548][  T173]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   12.446682][  T173]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   12.446821][  T173]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.446951][  T173]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   12.447081][  T173]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.447211][  T173]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   12.447342][  T173]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.447472][  T173]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.447603][  T173]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.447737][  T173]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.447867][  T173]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.448028][  T173] RIP: 0033:0x7fa0a8f22bcb
[   12.448163][  T173] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   12.448626][  T173] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   12.448828][  T173] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   12.449020][  T173] RDX: 0000000000406360 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   12.449212][  T173] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   12.449405][  T173] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   12.449603][  T173] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   13.463396][   T12] ------------[ cut here ]------------
| [   13.463659][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   13.463968][   T12] Modules linked in:
| [   13.464437][   T12] Tainted: [W]=WARN
[   13.464592][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.464861][   T12] Workqueue: netns cleanup_net
[   13.465046][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.465260][   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
[   13.465766][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   13.465967][   T12] RAX: 00000000ffffffa6 RBX: ff1100000960eac0 RCX: 1ff4000000018eed
[   13.466195][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000960eb7c
[   13.466432][   T12] RBP: ff1100000e939000 R08: 1fe22000012c1d71 R09: ff11000001aed1d0
[   13.466685][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   13.466956][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   13.467196][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   13.467453][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.467663][   T12] CR2: 00007fa0a8f22bc0 CR3: 0000000044d4d005 CR4: 0000000000771ef0
[   13.467926][   T12] PKRU: 55555554
[   13.468068][   T12] Call Trace:
[   13.468203][   T12]  <TASK>
[   13.468310][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   13.468509][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   13.468706][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   13.468887][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   13.469055][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   13.469219][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   13.469397][   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)
[   13.469564][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   13.469752][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   13.469915][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.470082][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   13.470246][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   13.470409][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   13.470577][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   13.470760][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.470930][   T12]  process_one_work (kernel/workqueue.c:3314)
[   13.471099][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   13.471262][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.471431][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   13.471609][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   13.471783][   T12]  kthread (kernel/kthread.c:436)
[   13.471924][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   13.472118][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.472283][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   13.472448][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   13.472649][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   13.472827][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.472994][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   13.475917][   T12] ------------[ cut here ]------------
| [   13.476080][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   13.476364][   T12] Modules linked in:
| [   13.476836][   T12] Tainted: [W]=WARN
[   13.476970][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.477161][   T12] Workqueue: netns cleanup_net
[   13.477329][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.477531][   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
[   13.478011][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   13.478206][   T12] RAX: 00000000ffffffa6 RBX: ff1100000960f1c0 RCX: 1ff4000000018eed
[   13.478428][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000960f27c
[   13.478653][   T12] RBP: ff1100000fb44000 R08: 1fe22000012c1e51 R09: ff11000001aed1d0
[   13.478884][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   13.479102][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   13.479329][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   13.479577][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.479788][   T12] CR2: 00007fa0a8f22bc0 CR3: 0000000044d4d005 CR4: 0000000000771ef0
[   13.480009][   T12] PKRU: 55555554
[   13.480139][   T12] Call Trace:
[   13.480272][   T12]  <TASK>
[   13.480378][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   13.480578][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   13.480789][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   13.480956][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   13.481121][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   13.481285][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   13.481449][   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)
[   13.481622][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   13.481805][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   13.481968][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.482134][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   13.482299][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   13.482461][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   13.482633][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   13.482811][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.482980][   T12]  process_one_work (kernel/workqueue.c:3314)
[   13.483151][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   13.483315][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.483484][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   13.483659][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   13.483838][   T12]  kthread (kernel/kthread.c:436)
[   13.483973][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   13.484165][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.484334][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   13.484500][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   13.484700][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   13.484874][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.485038][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   13.487652][   T12] ------------[ cut here ]------------
| [   13.488229][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   13.488552][   T12] Modules linked in:
| [   13.489114][   T12] Tainted: [W]=WARN
[   13.489293][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.489529][   T12] Workqueue: netns cleanup_net
[   13.489769][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.490019][   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
[   13.490537][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   13.490798][   T12] RAX: 00000000ffffffa6 RBX: ff1100000960f8c0 RCX: 1ff4000000018eed
[   13.491063][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000960f97c
[   13.491329][   T12] RBP: ff1100000fb81000 R08: 1fe22000012c1f31 R09: ff11000001aed1d0
[   13.491599][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   13.491879][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   13.492146][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   13.492438][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.492688][   T12] CR2: 00007fa0a8f22bc0 CR3: 0000000044d4d005 CR4: 0000000000771ef0
[   13.492976][   T12] PKRU: 55555554
[   13.493104][   T12] Call Trace:
[   13.493239][   T12]  <TASK>
[   13.493346][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   13.493543][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   13.493754][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   13.493921][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   13.494086][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   13.494249][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   13.494414][   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)
[   13.494588][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   13.494770][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   13.494933][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.495104][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   13.495268][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   13.495429][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   13.495602][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   13.495779][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.495945][   T12]  process_one_work (kernel/workqueue.c:3314)
[   13.496113][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   13.496276][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.496449][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   13.496624][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   13.496803][   T12]  kthread (kernel/kthread.c:436)
[   13.496939][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   13.497136][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.497300][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   13.497465][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   13.497668][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   13.497841][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.498004][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   13.509717][   T12] ------------[ cut here ]------------
| [   13.509895][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   13.510177][   T12] Modules linked in:
| [   13.510626][   T12] Tainted: [W]=WARN
[   13.510773][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.510964][   T12] Workqueue: netns cleanup_net
[   13.511135][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.511331][   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
[   13.511867][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   13.512105][   T12] RAX: 00000000ffffffa6 RBX: ff1100000960fc40 RCX: 1ff4000000018eed
[   13.512374][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000960fcfc
[   13.512643][   T12] RBP: ff1100000fc19000 R08: 1fe22000012c1fa1 R09: ff11000001aed1d0
[   13.512920][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   13.513184][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   13.513454][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   13.513771][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.514002][   T12] CR2: 00007fa0a8f22bc0 CR3: 0000000044d4d005 CR4: 0000000000771ef0
[   13.514221][   T12] PKRU: 55555554
[   13.514354][   T12] Call Trace:
[   13.514490][   T12]  <TASK>
[   13.514602][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   13.514811][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   13.515004][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   13.515168][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   13.515334][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   13.515496][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   13.515671][   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)
[   13.515853][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   13.516020][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   13.516181][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.516347][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   13.516511][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   13.516681][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   13.516860][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   13.517023][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.517192][   T12]  process_one_work (kernel/workqueue.c:3314)
[   13.517359][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   13.517521][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.517699][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   13.517878][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   13.518040][   T12]  kthread (kernel/kthread.c:436)
[   13.518175][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   13.518372][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.518537][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   13.518712][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   13.518920][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   13.519084][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.519247][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   13.521631][   T12] ------------[ cut here ]------------
| [   13.521810][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   13.522083][   T12] Modules linked in:
| [   13.522529][   T12] Tainted: [W]=WARN
[   13.522670][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.523016][   T12] Workqueue: netns cleanup_net
[   13.523231][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.523474][   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
[   13.524002][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   13.524241][   T12] RAX: 00000000ffffffa6 RBX: ff1100000d1f0c80 RCX: 1ff4000000018eed
[   13.524504][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d1f0d3c
[   13.524744][   T12] RBP: ff1100000a339000 R08: 1fe2200001a3e1a9 R09: ff11000001aed1d0
[   13.524971][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   13.525188][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   13.525407][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   13.525669][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.525875][   T12] CR2: 00007fa0a8f22bc0 CR3: 0000000044d4d005 CR4: 0000000000771ef0
[   13.526095][   T12] PKRU: 55555554
[   13.526228][   T12] Call Trace:
[   13.526362][   T12]  <TASK>
[   13.526469][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   13.526676][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   13.526883][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   13.527049][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   13.527214][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   13.527377][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   13.527542][   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)
[   13.527716][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   13.527896][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   13.528059][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.528228][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   13.528393][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   13.528554][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   13.528726][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   13.528975][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.529142][   T12]  process_one_work (kernel/workqueue.c:3314)
[   13.529309][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   13.529476][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.529651][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   13.529834][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   13.529996][   T12]  kthread (kernel/kthread.c:436)
[   13.530130][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   13.530322][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.530485][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   13.530657][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   13.530862][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   13.531025][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.531190][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   13.539636][  T175] ------------[ cut here ]------------
| [   13.539793][  T175] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/175
| [   13.540054][  T175] Modules linked in:
| [   13.540454][  T175] Tainted: [W]=WARN
[   13.540552][  T175] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.540721][  T175] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.540896][  T175] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.541363][  T175] RSP: 0018:ffa0000000557a80 EFLAGS: 00010286
[   13.541527][  T175] RAX: 00000000ffffffa6 RBX: ff1100000d1f03c0 RCX: 1ff40000000aaf16
[   13.541727][  T175] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d1f047c
[   13.541927][  T175] RBP: ff1100000f931000 R08: 1fe2200001a3e091 R09: ff110000100a0b80
[   13.542121][  T175] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   13.542319][  T175] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f931000
[   13.542517][  T175] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   13.542756][  T175] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.542921][  T175] CR2: 00007fa0a8f22bc0 CR3: 000000000da86004 CR4: 0000000000771ef0
[   13.543118][  T175] PKRU: 55555554
[   13.543217][  T175] Call Trace:
[   13.543314][  T175]  <TASK>
[   13.543382][  T175]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.543515][  T175]  ? notifier_call_chain (kernel/notifier.c:85)
[   13.543651][  T175]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.543759][  T175]  register_netdevice (net/core/dev.c:11488)
[   13.543893][  T175]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   13.544060][  T175]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   13.544193][  T175]  register_netdev (net/core/dev.c:11552)
[   13.544324][  T175]  loopback_net_init (drivers/net/loopback.c:218)
[   13.544458][  T175]  ops_init (net/core/net_namespace.c:137)
[   13.544558][  T175]  setup_net (net/core/net_namespace.c:446)
[   13.544661][  T175]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   13.544797][  T175]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   13.544928][  T175]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   13.545063][  T175]  copy_net_ns (net/core/net_namespace.c:579)
[   13.545196][  T175]  create_new_namespaces (kernel/nsproxy.c:132)
[   13.545331][  T175]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   13.545462][  T175]  ksys_unshare (kernel/fork.c:3243)
[   13.545597][  T175]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.545728][  T175]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   13.545863][  T175]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.545995][  T175]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   13.546130][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.546262][  T175]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   13.546392][  T175]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   13.546524][  T175]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.546656][  T175]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.546793][  T175]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.546925][  T175]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.547088][  T175] RIP: 0033:0x7fa0a8f22bcb
[   13.547226][  T175] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   13.547696][  T175] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   13.547902][  T175] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   13.548098][  T175] RDX: 00000000004063a0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   13.548295][  T175] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   13.548491][  T175] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   13.548708][  T175] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   13.553002][  T175] ------------[ cut here ]------------
| [   13.553135][  T175] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/175
| [   13.553400][  T175] Modules linked in:
| [   13.553805][  T175] Tainted: [W]=WARN
[   13.553903][  T175] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.554070][  T175] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.554237][  T175] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.554704][  T175] RSP: 0018:ffa0000000557918 EFLAGS: 00010286
[   13.554885][  T175] RAX: 00000000ffffffa6 RBX: ff1100000c6e63c0 RCX: 1ff40000000aaee9
[   13.555096][  T175] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c6e647c
[   13.555291][  T175] RBP: ff11000010324000 R08: 1fe22000018dcc91 R09: ff110000100a0b80
[   13.555485][  T175] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   13.555683][  T175] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000010324000
[   13.555889][  T175] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   13.556118][  T175] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.556280][  T175] CR2: 00007fa0a8f22bc0 CR3: 000000000da86004 CR4: 0000000000771ef0
[   13.556477][  T175] PKRU: 55555554
[   13.556575][  T175] Call Trace:
[   13.556674][  T175]  <TASK>
[   13.556752][  T175]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.556883][  T175]  ? notifier_call_chain (kernel/notifier.c:85)
[   13.557019][  T175]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.557118][  T175]  register_netdevice (net/core/dev.c:11488)
[   13.557251][  T175]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   13.557414][  T175]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   13.557545][  T175]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   13.557684][  T175]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   13.557819][  T175]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   13.557953][  T175]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   13.558084][  T175]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   13.558214][  T175]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   13.558347][  T175]  ops_init (net/core/net_namespace.c:137)
[   13.558447][  T175]  setup_net (net/core/net_namespace.c:446)
[   13.558545][  T175]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   13.558681][  T175]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   13.558815][  T175]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   13.558947][  T175]  copy_net_ns (net/core/net_namespace.c:579)
[   13.559077][  T175]  create_new_namespaces (kernel/nsproxy.c:132)
[   13.559208][  T175]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   13.559338][  T175]  ksys_unshare (kernel/fork.c:3243)
[   13.559467][  T175]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.559604][  T175]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   13.559738][  T175]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.559867][  T175]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   13.559998][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.560129][  T175]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   13.560256][  T175]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   13.560385][  T175]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.560521][  T175]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.560652][  T175]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.560787][  T175]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.560949][  T175] RIP: 0033:0x7fa0a8f22bcb
[   13.561084][  T175] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   13.561549][  T175] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   13.561749][  T175] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   13.561942][  T175] RDX: 00000000004063a0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   13.562133][  T175] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   13.562331][  T175] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   13.562522][  T175] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   13.574011][  T175] ------------[ cut here ]------------
| [   13.574152][  T175] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/175
| [   13.574407][  T175] Modules linked in:
| [   13.574809][  T175] Tainted: [W]=WARN
[   13.574908][  T175] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.575079][  T175] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.575246][  T175] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.575710][  T175] RSP: 0018:ffa00000005578f8 EFLAGS: 00010286
[   13.575876][  T175] RAX: 00000000ffffffa6 RBX: ff1100000a14dc40 RCX: 1ff40000000aaee5
[   13.576071][  T175] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a14dcfc
[   13.576262][  T175] RBP: ff1100000f2b4000 R08: 1fe2200001429ba1 R09: ff110000100a0b80
[   13.576455][  T175] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   13.576651][  T175] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f2b4000
[   13.576854][  T175] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   13.577080][  T175] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.577241][  T175] CR2: 00007fa0a8f22bc0 CR3: 000000000da86004 CR4: 0000000000771ef0
[   13.577435][  T175] PKRU: 55555554
[   13.577532][  T175] Call Trace:
[   13.577634][  T175]  <TASK>
[   13.577700][  T175]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.577834][  T175]  ? notifier_call_chain (kernel/notifier.c:85)
[   13.577966][  T175]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.578064][  T175]  register_netdevice (net/core/dev.c:11488)
[   13.578196][  T175]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   13.578355][  T175]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   13.578490][  T175]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   13.578622][  T175]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   13.578755][  T175]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   13.578886][  T175]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   13.579017][  T175]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   13.579148][  T175]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   13.579278][  T175]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   13.579408][  T175]  vti_init_net (net/ipv4/ip_vti.c:517)
[   13.579543][  T175]  ops_init (net/core/net_namespace.c:137)
[   13.579647][  T175]  setup_net (net/core/net_namespace.c:446)
[   13.579748][  T175]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   13.579877][  T175]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   13.580006][  T175]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   13.580138][  T175]  copy_net_ns (net/core/net_namespace.c:579)
[   13.580268][  T175]  create_new_namespaces (kernel/nsproxy.c:132)
[   13.580404][  T175]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   13.580533][  T175]  ksys_unshare (kernel/fork.c:3243)
[   13.580667][  T175]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.580801][  T175]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   13.580930][  T175]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.581060][  T175]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   13.581193][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.581324][  T175]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   13.581455][  T175]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   13.581587][  T175]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.581717][  T175]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.581851][  T175]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.581980][  T175]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.582139][  T175] RIP: 0033:0x7fa0a8f22bcb
[   13.582274][  T175] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   13.582744][  T175] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   13.582938][  T175] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   13.583130][  T175] RDX: 00000000004063a0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   13.583325][  T175] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   13.583517][  T175] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   13.583714][  T175] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   13.585763][   T12] ------------[ cut here ]------------
| [   13.585892][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   13.586121][   T12] Modules linked in:
| [   13.586477][   T12] Tainted: [W]=WARN
[   13.586564][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.586714][   T12] Workqueue: netns cleanup_net
[   13.586842][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.586993][   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
[   13.587409][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   13.587561][   T12] RAX: 00000000ffffffa6 RBX: ff1100000d9b4e40 RCX: 1ff4000000018ed5
[   13.587744][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d9b4efc
[   13.587917][   T12] RBP: ff1100000e9a4000 R08: 1fe2200001b369e1 R09: ff11000001aed1d0
[   13.588089][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   13.588259][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   13.588433][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   13.588638][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.588794][   T12] CR2: 00007fa0a8e21000 CR3: 00000000108d9003 CR4: 0000000000771ef0
[   13.588968][   T12] PKRU: 55555554
[   13.589053][   T12] Call Trace:
[   13.589139][   T12]  <TASK>
[   13.589200][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   13.589348][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   13.589504][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   13.589627][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   13.589752][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   13.589868][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   13.589985][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   13.590103][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   13.590220][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   13.590335][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.590455][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   13.590572][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   13.590692][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   13.590815][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   13.590932][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.591054][   T12]  process_one_work (kernel/workqueue.c:3314)
[   13.591176][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   13.591293][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.591414][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   13.591534][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   13.591652][   T12]  kthread (kernel/kthread.c:436)
[   13.591746][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   13.591889][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.592004][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   13.592121][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   13.592267][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   13.592383][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.592509][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   13.596955][  T175] ------------[ cut here ]------------
| [   13.597089][  T175] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/175
| [   13.597339][  T175] Modules linked in:
| [   13.597740][  T175] Tainted: [W]=WARN
[   13.597836][  T175] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.597995][  T175] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.598160][  T175] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.598620][  T175] RSP: 0018:ffa0000000557a78 EFLAGS: 00010286
[   13.598781][  T175] RAX: 00000000ffffffa6 RBX: ff1100000d1f0900 RCX: 1ff40000000aaf15
[   13.598969][  T175] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d1f09bc
[   13.599158][  T175] RBP: ff11000005939000 R08: 1fe2200001a3e139 R09: ff110000100a0b80
[   13.599352][  T175] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   13.599540][  T175] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000005939000
[   13.599739][  T175] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   13.599963][  T175] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.600120][  T175] CR2: 00007fa0a8f22bc0 CR3: 000000000da86004 CR4: 0000000000771ef0
[   13.600314][  T175] PKRU: 55555554
[   13.600409][  T175] Call Trace:
[   13.600503][  T175]  <TASK>
[   13.600570][  T175]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.600702][  T175]  ? notifier_call_chain (kernel/notifier.c:85)
[   13.600834][  T175]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.600932][  T175]  register_netdevice (net/core/dev.c:11488)
[   13.601064][  T175]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   13.601219][  T175]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.601348][  T175]  register_netdev (net/core/dev.c:11552)
[   13.601474][  T175]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   13.601607][  T175]  ops_init (net/core/net_namespace.c:137)
[   13.601704][  T175]  setup_net (net/core/net_namespace.c:446)
[   13.601805][  T175]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   13.601930][  T175]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   13.602060][  T175]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   13.602188][  T175]  copy_net_ns (net/core/net_namespace.c:579)
[   13.602317][  T175]  create_new_namespaces (kernel/nsproxy.c:132)
[   13.602446][  T175]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   13.602573][  T175]  ksys_unshare (kernel/fork.c:3243)
[   13.602704][  T175]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.602836][  T175]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   13.602965][  T175]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.603093][  T175]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   13.603220][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.603347][  T175]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   13.603472][  T175]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   13.603609][  T175]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.603740][  T175]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.603870][  T175]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.603997][  T175]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.604154][  T175] RIP: 0033:0x7fa0a8f22bcb
[   13.604286][  T175] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   13.604745][  T175] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   13.604940][  T175] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   13.605128][  T175] RDX: 00000000004063a0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   13.605316][  T175] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   13.605503][  T175] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   13.605699][  T175] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   13.609649][  T175] ------------[ cut here ]------------
| [   13.609786][  T175] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/175
| [   13.610039][  T175] Modules linked in:
| [   13.610422][  T175] Tainted: [W]=WARN
[   13.610518][  T175] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.610685][  T175] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.610854][  T175] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.611303][  T175] RSP: 0018:ffa0000000557a68 EFLAGS: 00010286
[   13.611462][  T175] RAX: 00000000ffffffa6 RBX: ff1100000c6e7540 RCX: 1ff40000000aaf13
[   13.611658][  T175] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c6e75fc
[   13.611851][  T175] RBP: ff1100000f1c1000 R08: 1fe22000018dcec1 R09: ff110000100a0b80
[   13.612039][  T175] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   13.612227][  T175] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f1c1000
[   13.612421][  T175] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   13.612647][  T175] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.612810][  T175] CR2: 00007fa0a8f22bc0 CR3: 000000000da86004 CR4: 0000000000771ef0
[   13.613001][  T175] PKRU: 55555554
[   13.613096][  T175] Call Trace:
[   13.613190][  T175]  <TASK>
[   13.613259][  T175]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.613385][  T175]  ? notifier_call_chain (kernel/notifier.c:85)
[   13.613513][  T175]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.613614][  T175]  register_netdevice (net/core/dev.c:11488)
[   13.613748][  T175]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   13.613908][  T175]  register_netdev (net/core/dev.c:11552)
[   13.614035][  T175]  sit_init_net (net/ipv6/sit.c:1860)
[   13.614170][  T175]  ops_init (net/core/net_namespace.c:137)
[   13.614267][  T175]  setup_net (net/core/net_namespace.c:446)
[   13.614363][  T175]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   13.614489][  T175]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   13.614618][  T175]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   13.614750][  T175]  copy_net_ns (net/core/net_namespace.c:579)
[   13.614879][  T175]  create_new_namespaces (kernel/nsproxy.c:132)
[   13.615012][  T175]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   13.615141][  T175]  ksys_unshare (kernel/fork.c:3243)
[   13.615273][  T175]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.615401][  T175]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   13.615528][  T175]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.615658][  T175]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   13.615791][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.615919][  T175]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   13.616049][  T175]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   13.616175][  T175]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.616302][  T175]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.616430][  T175]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.616556][  T175]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.616716][  T175] RIP: 0033:0x7fa0a8f22bcb
[   13.616853][  T175] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   13.617308][  T175] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   13.617499][  T175] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   13.617691][  T175] RDX: 00000000004063a0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   13.617890][  T175] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   13.618080][  T175] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   13.618270][  T175] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   13.623197][  T175] ------------[ cut here ]------------
| [   13.623332][  T175] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/175
| [   13.623588][  T175] Modules linked in:
| [   13.624037][  T175] Tainted: [W]=WARN
[   13.624134][  T175] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.624293][  T175] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.624461][  T175] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.624983][  T175] RSP: 0018:ffa0000000557a78 EFLAGS: 00010286
[   13.625147][  T175] RAX: 00000000ffffffa6 RBX: ff1100000b571000 RCX: 1ff40000000aaf15
[   13.625340][  T175] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b5710bc
[   13.625532][  T175] RBP: ff1100000f1bc000 R08: 1fe22000016ae219 R09: ff110000100a0b80
[   13.625788][  T175] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   13.625982][  T175] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f1bc000
[   13.626176][  T175] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   13.626404][  T175] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.626565][  T175] CR2: 00007fa0a8f22bc0 CR3: 000000000da86004 CR4: 0000000000771ef0
[   13.626820][  T175] PKRU: 55555554
[   13.626917][  T175] Call Trace:
[   13.627017][  T175]  <TASK>
[   13.627083][  T175]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.627212][  T175]  ? notifier_call_chain (kernel/notifier.c:85)
[   13.627342][  T175]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.627441][  T175]  register_netdevice (net/core/dev.c:11488)
[   13.627576][  T175]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   13.627795][  T175]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.627928][  T175]  register_netdev (net/core/dev.c:11552)
[   13.628056][  T175]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   13.628186][  T175]  ops_init (net/core/net_namespace.c:137)
[   13.628285][  T175]  setup_net (net/core/net_namespace.c:446)
[   13.628383][  T175]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   13.628516][  T175]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   13.628650][  T175]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   13.628835][  T175]  copy_net_ns (net/core/net_namespace.c:579)
[   13.628966][  T175]  create_new_namespaces (kernel/nsproxy.c:132)
[   13.629097][  T175]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   13.629228][  T175]  ksys_unshare (kernel/fork.c:3243)
[   13.629357][  T175]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.629491][  T175]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   13.629624][  T175]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.629809][  T175]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   13.629938][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.630068][  T175]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   13.630196][  T175]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   13.630325][  T175]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.630453][  T175]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.630589][  T175]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.630718][  T175]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.630933][  T175] RIP: 0033:0x7fa0a8f22bcb
[   13.631067][  T175] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   13.631531][  T175] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   13.631729][  T175] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   13.631977][  T175] RDX: 00000000004063a0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   13.632169][  T175] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   13.632361][  T175] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   13.632558][  T175] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   13.655909][  T177] ------------[ cut here ]------------
| [   13.656059][  T177] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: scm_rights/177
| [   13.656325][  T177] Modules linked in:
| [   13.656740][  T177] Tainted: [W]=WARN
[   13.656840][  T177] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.657003][  T177] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.657174][  T177] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.657644][  T177] RSP: 0018:ffa00000005a7a80 EFLAGS: 00010286
[   13.657813][  T177] RAX: 00000000ffffffa6 RBX: ff1100000a14c3c0 RCX: 1ff40000000b4f16
[   13.658009][  T177] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a14c47c
[   13.658205][  T177] RBP: ff11000005119000 R08: 1fe2200001429891 R09: ff110000100a5180
[   13.658398][  T177] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   13.658596][  T177] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000005119000
[   13.658798][  T177] FS:  00007fa0a8e27740(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   13.659025][  T177] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.659188][  T177] CR2: 00000000004090e8 CR3: 0000000010a7b002 CR4: 0000000000771ef0
[   13.659384][  T177] PKRU: 55555554
[   13.659481][  T177] Call Trace:
[   13.659578][  T177]  <TASK>
[   13.659651][  T177]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.659788][  T177]  ? notifier_call_chain (kernel/notifier.c:85)
[   13.659919][  T177]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.660020][  T177]  register_netdevice (net/core/dev.c:11488)
[   13.660152][  T177]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   13.660314][  T177]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   13.660446][  T177]  register_netdev (net/core/dev.c:11552)
[   13.660575][  T177]  loopback_net_init (drivers/net/loopback.c:218)
[   13.660713][  T177]  ops_init (net/core/net_namespace.c:137)
[   13.660817][  T177]  setup_net (net/core/net_namespace.c:446)
[   13.660919][  T177]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   13.661047][  T177]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   13.661177][  T177]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   13.661309][  T177]  copy_net_ns (net/core/net_namespace.c:579)
[   13.661440][  T177]  create_new_namespaces (kernel/nsproxy.c:132)
[   13.661575][  T177]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   13.661712][  T177]  ksys_unshare (kernel/fork.c:3243)
[   13.661849][  T177]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.661980][  T177]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   13.662109][  T177]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.662239][  T177]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   13.662373][  T177]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.662506][  T177]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   13.662641][  T177]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   13.662777][  T177]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.662907][  T177]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.663038][  T177]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.663168][  T177]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.663329][  T177] RIP: 0033:0x7fa0a8f22bcb
[   13.663464][  T177] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   13.663935][  T177] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   13.664130][  T177] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   13.664322][  T177] RDX: 00000000004063a0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   13.664515][  T177] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   13.664715][  T177] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   13.664912][  T177] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   13.669127][  T177] ------------[ cut here ]------------
| [   13.669263][  T177] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: scm_rights/177
| [   13.669518][  T177] Modules linked in:
| [   13.669919][  T177] Tainted: [W]=WARN
[   13.670018][  T177] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.670178][  T177] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.670344][  T177] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.670812][  T177] RSP: 0018:ffa00000005a7918 EFLAGS: 00010286
[   13.670976][  T177] RAX: 00000000ffffffa6 RBX: ff11000009851380 RCX: 1ff40000000b4ee9
[   13.671170][  T177] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000985143c
[   13.671364][  T177] RBP: ff1100000fc51000 R08: 1fe220000130a289 R09: ff110000100a5180
[   13.671556][  T177] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   13.671758][  T177] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fc51000
[   13.671952][  T177] FS:  00007fa0a8e27740(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   13.672177][  T177] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.672339][  T177] CR2: 00000000004090e8 CR3: 0000000010a7b002 CR4: 0000000000771ef0
[   13.672535][  T177] PKRU: 55555554
[   13.672636][  T177] Call Trace:
[   13.672737][  T177]  <TASK>
[   13.672804][  T177]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.672933][  T177]  ? notifier_call_chain (kernel/notifier.c:85)
[   13.673061][  T177]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.673159][  T177]  register_netdevice (net/core/dev.c:11488)
[   13.673289][  T177]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   13.673450][  T177]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   13.673585][  T177]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   13.673716][  T177]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   13.673850][  T177]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   13.673981][  T177]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   13.674111][  T177]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   13.674242][  T177]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   13.674372][  T177]  ops_init (net/core/net_namespace.c:137)
[   13.674472][  T177]  setup_net (net/core/net_namespace.c:446)
[   13.674569][  T177]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   13.674702][  T177]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   13.674836][  T177]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   13.674966][  T177]  copy_net_ns (net/core/net_namespace.c:579)
[   13.675096][  T177]  create_new_namespaces (kernel/nsproxy.c:132)
[   13.675228][  T177]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   13.675361][  T177]  ksys_unshare (kernel/fork.c:3243)
[   13.675489][  T177]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.675623][  T177]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   13.675756][  T177]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.675886][  T177]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   13.676015][  T177]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.676144][  T177]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   13.676273][  T177]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   13.676401][  T177]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.676529][  T177]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.676661][  T177]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.676795][  T177]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.676954][  T177] RIP: 0033:0x7fa0a8f22bcb
[   13.677086][  T177] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   13.677546][  T177] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   13.677746][  T177] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   13.677938][  T177] RDX: 00000000004063a0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   13.678128][  T177] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   13.678318][  T177] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   13.678508][  T177] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   13.682508][  T177] ------------[ cut here ]------------
| [   13.682648][  T177] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: scm_rights/177
| [   13.682909][  T177] Modules linked in:
| [   13.683305][  T177] Tainted: [W]=WARN
[   13.683404][  T177] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.683567][  T177] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.683747][  T177] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.684215][  T177] RSP: 0018:ffa00000005a78f8 EFLAGS: 00010286
[   13.684380][  T177] RAX: 00000000ffffffa6 RBX: ff110000098503c0 RCX: 1ff40000000b4ee5
[   13.684575][  T177] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000985047c
[   13.684778][  T177] RBP: ff11000007ca1000 R08: 1fe220000130a091 R09: ff110000100a5180
[   13.684972][  T177] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   13.685168][  T177] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000007ca1000
[   13.685365][  T177] FS:  00007fa0a8e27740(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   13.685599][  T177] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.685769][  T177] CR2: 00000000004090e8 CR3: 0000000010a7b002 CR4: 0000000000771ef0
[   13.685967][  T177] PKRU: 55555554
[   13.686064][  T177] Call Trace:
[   13.686162][  T177]  <TASK>
[   13.686230][  T177]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.686362][  T177]  ? notifier_call_chain (kernel/notifier.c:85)
[   13.686493][  T177]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.686597][  T177]  register_netdevice (net/core/dev.c:11488)
[   13.686730][  T177]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   13.686900][  T177]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   13.687033][  T177]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   13.687164][  T177]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   13.687293][  T177]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   13.687426][  T177]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   13.687558][  T177]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   13.687696][  T177]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   13.687835][  T177]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   13.687967][  T177]  vti_init_net (net/ipv4/ip_vti.c:517)
[   13.688098][  T177]  ops_init (net/core/net_namespace.c:137)
[   13.688200][  T177]  setup_net (net/core/net_namespace.c:446)
[   13.688299][  T177]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   13.688429][  T177]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   13.688560][  T177]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   13.688698][  T177]  copy_net_ns (net/core/net_namespace.c:579)
[   13.688835][  T177]  create_new_namespaces (kernel/nsproxy.c:132)
[   13.688969][  T177]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   13.689101][  T177]  ksys_unshare (kernel/fork.c:3243)
[   13.689231][  T177]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.689362][  T177]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   13.689491][  T177]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.689628][  T177]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   13.689766][  T177]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.689899][  T177]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   13.690030][  T177]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   13.690160][  T177]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.690290][  T177]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.690421][  T177]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.690552][  T177]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.690719][  T177] RIP: 0033:0x7fa0a8f22bcb
[   13.690859][  T177] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   13.691323][  T177] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   13.691519][  T177] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   13.691720][  T177] RDX: 00000000004063a0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   13.691920][  T177] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   13.692113][  T177] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   13.692306][  T177] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   13.696313][  T177] ------------[ cut here ]------------
| [   13.696446][  T177] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: scm_rights/177
| [   13.696711][  T177] Modules linked in:
| [   13.697626][  T177] Tainted: [W]=WARN
[   13.697727][  T177] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.697952][  T177] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.698132][  T177] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.698625][  T177] RSP: 0018:ffa00000005a7a78 EFLAGS: 00010286
[   13.698875][  T177] RAX: 00000000ffffffa6 RBX: ff1100000eb38740 RCX: 1ff40000000b4f15
[   13.699153][  T177] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000eb387fc
[   13.699359][  T177] RBP: ff11000001f89000 R08: 1fe2200001d67101 R09: ff110000100a5180
[   13.699564][  T177] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   13.699849][  T177] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000001f89000
[   13.700056][  T177] FS:  00007fa0a8e27740(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   13.700295][  T177] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.700468][  T177] CR2: 00000000004090e8 CR3: 0000000010a7b002 CR4: 0000000000771ef0
[   13.700678][  T177] PKRU: 55555554
[   13.700856][  T177] Call Trace:
[   13.700958][  T177]  <TASK>
[   13.701030][  T177]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.701168][  T177]  ? notifier_call_chain (kernel/notifier.c:85)
[   13.701306][  T177]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.701412][  T177]  register_netdevice (net/core/dev.c:11488)
[   13.701551][  T177]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   13.701724][  T177]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.701938][  T177]  register_netdev (net/core/dev.c:11552)
[   13.702075][  T177]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   13.702214][  T177]  ops_init (net/core/net_namespace.c:137)
[   13.702321][  T177]  setup_net (net/core/net_namespace.c:446)
[   13.702426][  T177]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   13.702561][  T177]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   13.702701][  T177]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   13.702915][  T177]  copy_net_ns (net/core/net_namespace.c:579)
[   13.703055][  T177]  create_new_namespaces (kernel/nsproxy.c:132)
[   13.703198][  T177]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   13.703338][  T177]  ksys_unshare (kernel/fork.c:3243)
[   13.703474][  T177]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.703617][  T177]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   13.703828][  T177]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.703967][  T177]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   13.704106][  T177]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.704245][  T177]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   13.704383][  T177]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   13.704519][  T177]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.704660][  T177]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.704872][  T177]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.705010][  T177]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.705179][  T177] RIP: 0033:0x7fa0a8f22bcb
[   13.705321][  T177] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   13.705891][  T177] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   13.706098][  T177] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   13.706304][  T177] RDX: 00000000004063a0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   13.706510][  T177] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   13.706720][  T177] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   13.707001][  T177] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   13.709163][   T12] ------------[ cut here ]------------
| [   13.709325][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   13.709607][   T12] Modules linked in:
| [   13.710074][   T12] Tainted: [W]=WARN
[   13.710207][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.710398][   T12] Workqueue: netns cleanup_net
[   13.710568][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.710783][   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
[   13.711253][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   13.711446][   T12] RAX: 00000000ffffffa6 RBX: ff110000054fe900 RCX: 1ff4000000018eed
[   13.711671][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000054fe9bc
[   13.711960][   T12] RBP: ff1100000f1bc000 R08: 1fe2200000a9fd39 R09: ff11000001aed1d0
[   13.712227][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   13.712491][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   13.712727][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   13.712991][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.713182][   T12] CR2: 00007fa0a8e9a0a0 CR3: 000000000da86002 CR4: 0000000000771ef0
[   13.713415][   T12] PKRU: 55555554
[   13.713547][   T12] Call Trace:
[   13.713686][   T12]  <TASK>
[   13.713806][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   13.714005][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   13.714201][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   13.714366][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   13.714531][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   13.714702][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   13.714877][   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)
[   13.715041][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   13.715206][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   13.715366][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.715537][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   13.715708][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   13.715884][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   13.716048][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   13.716210][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.716375][   T12]  process_one_work (kernel/workqueue.c:3314)
[   13.716541][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   13.716711][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.716897][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   13.717064][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   13.717227][   T12]  kthread (kernel/kthread.c:436)
[   13.717360][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   13.717551][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.717717][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   13.717896][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   13.718091][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   13.718255][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.718420][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   13.727643][   T12] ------------[ cut here ]------------
| [   13.727813][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   13.728088][   T12] Modules linked in:
| [   13.728542][   T12] Tainted: [W]=WARN
[   13.728688][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.728951][   T12] Workqueue: netns cleanup_net
[   13.729169][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.729380][   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
[   13.729856][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   13.730065][   T12] RAX: 00000000ffffffa6 RBX: ff110000096c3e00 RCX: 1ff4000000018eed
[   13.730284][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000096c3ebc
[   13.730503][   T12] RBP: ff1100000f1c1000 R08: 1fe22000012d87d9 R09: ff11000001aed1d0
[   13.730729][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   13.730963][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   13.731182][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   13.731434][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.731633][   T12] CR2: 00007fa0a8e9a0a0 CR3: 000000000da86002 CR4: 0000000000771ef0
[   13.731869][   T12] PKRU: 55555554
[   13.732007][   T12] Call Trace:
[   13.732140][   T12]  <TASK>
[   13.732246][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   13.732442][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   13.732640][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   13.732814][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   13.732982][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   13.733144][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   13.733312][   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)
[   13.733476][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   13.733651][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   13.733824][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.733990][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   13.734153][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   13.734315][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   13.734480][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   13.734654][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.734832][   T12]  process_one_work (kernel/workqueue.c:3314)
[   13.735001][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   13.735164][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.735332][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   13.735500][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   13.735672][   T12]  kthread (kernel/kthread.c:436)
[   13.735819][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   13.736015][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.736178][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   13.736342][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   13.736533][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   13.736705][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.736880][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   13.739433][   T12] ------------[ cut here ]------------
| [   13.739597][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   13.739899][   T12] Modules linked in:
| [   13.740344][   T12] Tainted: [W]=WARN
[   13.740477][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.740684][   T12] Workqueue: netns cleanup_net
[   13.740864][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.741064][   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
[   13.741518][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   13.741715][   T12] RAX: 00000000ffffffa6 RBX: ff110000096c3700 RCX: 1ff4000000018eed
[   13.741946][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000096c37bc
[   13.742167][   T12] RBP: ff11000005939000 R08: 1fe22000012d86f9 R09: ff11000001aed1d0
[   13.742383][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   13.742607][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   13.742840][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   13.743090][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.743280][   T12] CR2: 00007fa0a8e9a0a0 CR3: 000000000da86002 CR4: 0000000000771ef0
[   13.743500][   T12] PKRU: 55555554
[   13.743643][   T12] Call Trace:
[   13.743784][   T12]  <TASK>
[   13.743890][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   13.744088][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   13.744278][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   13.744441][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   13.744610][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   13.744782][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   13.744947][   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)
[   13.745112][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   13.745277][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   13.745441][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.745614][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   13.745788][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   13.745950][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   13.746115][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   13.746279][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.746445][   T12]  process_one_work (kernel/workqueue.c:3314)
[   13.746618][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   13.746801][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.746969][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   13.747136][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   13.747299][   T12]  kthread (kernel/kthread.c:436)
[   13.747433][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   13.747627][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.747804][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   13.747973][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   13.748165][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   13.748329][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.748493][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   13.750865][   T12] ------------[ cut here ]------------
| [   13.751022][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   13.751294][   T12] Modules linked in:
| [   13.752232][   T12] Tainted: [W]=WARN
[   13.752412][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.752654][   T12] Workqueue: netns cleanup_net
[   13.752885][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.753132][   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
[   13.753645][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   13.753895][   T12] RAX: 00000000ffffffa6 RBX: ff110000096c31c0 RCX: 1ff4000000018eed
[   13.754158][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000096c327c
[   13.754431][   T12] RBP: ff1100000f2b4000 R08: 1fe22000012d8651 R09: ff11000001aed1d0
[   13.754702][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   13.754977][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   13.755243][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   13.755534][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.755794][   T12] CR2: 00007fa0a8e9a0a0 CR3: 000000000da86002 CR4: 0000000000771ef0
[   13.756061][   T12] PKRU: 55555554
[   13.756236][   T12] Call Trace:
[   13.756415][   T12]  <TASK>
[   13.756565][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   13.756821][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   13.757053][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   13.757259][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   13.757468][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   13.757683][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   13.757909][   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)
[   13.758117][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   13.758324][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   13.758529][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.758808][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   13.759070][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   13.759314][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   13.759475][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   13.759645][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.759826][   T12]  process_one_work (kernel/workqueue.c:3314)
[   13.759994][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   13.760155][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.760323][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   13.760492][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   13.760661][   T12]  kthread (kernel/kthread.c:436)
[   13.760811][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   13.761005][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.761169][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   13.761333][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   13.761525][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   13.761698][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.761871][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   13.764222][   T12] ------------[ cut here ]------------
| [   13.764381][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   13.764653][   T12] Modules linked in:
| [   13.765876][   T12] Tainted: [W]=WARN
[   13.766054][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.766292][   T12] Workqueue: netns cleanup_net
[   13.766503][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.766767][   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
[   13.767273][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   13.767513][   T12] RAX: 00000000ffffffa6 RBX: ff11000009643c40 RCX: 1ff4000000018eed
[   13.767795][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009643cfc
[   13.768061][   T12] RBP: ff11000010324000 R08: 1fe22000012c87a1 R09: ff11000001aed1d0
[   13.768325][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   13.768595][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   13.768875][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   13.769170][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.769408][   T12] CR2: 00007fa0a8e9a0a0 CR3: 000000000da86002 CR4: 0000000000771ef0
[   13.769681][   T12] PKRU: 55555554
[   13.769876][   T12] Call Trace:
[   13.770054][   T12]  <TASK>
[   13.770207][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   13.770450][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   13.770692][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   13.770921][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   13.771133][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   13.771343][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   13.771562][   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)
[   13.771848][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   13.772110][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   13.772363][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.772627][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   13.772897][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   13.773149][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   13.773404][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   13.773651][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.773832][   T12]  process_one_work (kernel/workqueue.c:3314)
[   13.774002][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   13.774165][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.774332][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   13.774500][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   13.774669][   T12]  kthread (kernel/kthread.c:436)
[   13.774816][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   13.775006][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.775170][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   13.775333][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   13.775523][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   13.775697][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.775874][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   13.786095][  T177] ------------[ cut here ]------------
| [   13.786243][  T177] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: scm_rights/177
| [   13.786507][  T177] Modules linked in:
| [   13.786938][  T177] Tainted: [W]=WARN
[   13.787038][  T177] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.787201][  T177] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.787373][  T177] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.787850][  T177] RSP: 0018:ffa00000005a7a68 EFLAGS: 00010286
[   13.788016][  T177] RAX: 00000000ffffffa6 RBX: ff11000009643a80 RCX: 1ff40000000b4f13
[   13.788212][  T177] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009643b3c
[   13.788407][  T177] RBP: ff1100000fd8c000 R08: 1fe22000012c8769 R09: ff110000100a5180
[   13.788613][  T177] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   13.788812][  T177] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fd8c000
[   13.789008][  T177] FS:  00007fa0a8e27740(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   13.789242][  T177] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.789409][  T177] CR2: 00007fa0a8e21000 CR3: 0000000010a7b005 CR4: 0000000000771ef0
[   13.789612][  T177] PKRU: 55555554
[   13.789710][  T177] Call Trace:
[   13.789815][  T177]  <TASK>
[   13.789885][  T177]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.790016][  T177]  ? notifier_call_chain (kernel/notifier.c:85)
[   13.790147][  T177]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.790247][  T177]  register_netdevice (net/core/dev.c:11488)
[   13.790381][  T177]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   13.790546][  T177]  register_netdev (net/core/dev.c:11552)
[   13.790681][  T177]  sit_init_net (net/ipv6/sit.c:1860)
[   13.790819][  T177]  ops_init (net/core/net_namespace.c:137)
[   13.790919][  T177]  setup_net (net/core/net_namespace.c:446)
[   13.791017][  T177]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   13.791147][  T177]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   13.791280][  T177]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   13.791413][  T177]  copy_net_ns (net/core/net_namespace.c:579)
[   13.791546][  T177]  create_new_namespaces (kernel/nsproxy.c:132)
[   13.791683][  T177]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   13.791820][  T177]  ksys_unshare (kernel/fork.c:3243)
[   13.791955][  T177]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.792084][  T177]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   13.792216][  T177]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.792348][  T177]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   13.792479][  T177]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.792617][  T177]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   13.792750][  T177]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   13.792880][  T177]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.793009][  T177]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.793138][  T177]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.793269][  T177]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.793433][  T177] RIP: 0033:0x7fa0a8f22bcb
[   13.793569][  T177] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   13.794044][  T177] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   13.794242][  T177] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   13.794438][  T177] RDX: 00000000004063a0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   13.794637][  T177] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   13.794835][  T177] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   13.795031][  T177] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   13.796886][   T12] ------------[ cut here ]------------
| [   13.797015][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   13.797248][   T12] Modules linked in:
| [   13.797613][   T12] Tainted: [W]=WARN
[   13.797703][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.798014][   T12] Workqueue: netns cleanup_net
[   13.798138][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.798292][   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
[   13.798736][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   13.798887][   T12] RAX: 00000000ffffffa6 RBX: ff1100000a14d1c0 RCX: 1ff4000000018ed5
[   13.799063][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a14d27c
[   13.799238][   T12] RBP: ff1100000f931000 R08: 1fe2200001429a51 R09: ff11000001aed1d0
[   13.799413][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   13.799595][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   13.799776][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   13.799982][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.800133][   T12] CR2: 00000000004090e8 CR3: 0000000010a7b002 CR4: 0000000000771ef0
[   13.800314][   T12] PKRU: 55555554
[   13.800401][   T12] Call Trace:
[   13.800488][   T12]  <TASK>
[   13.800551][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   13.800709][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   13.800862][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   13.800983][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   13.801102][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   13.801222][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   13.801340][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   13.801461][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   13.801585][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   13.801703][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.801828][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   13.801946][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   13.802062][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   13.802180][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   13.802299][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.802417][   T12]  process_one_work (kernel/workqueue.c:3314)
[   13.802539][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   13.802661][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.802788][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   13.802910][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   13.803027][   T12]  kthread (kernel/kthread.c:436)
[   13.803116][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   13.803263][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.803380][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   13.803498][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   13.803649][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   13.803771][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.803888][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   13.808746][  T177] ------------[ cut here ]------------
| [   13.808886][  T177] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: scm_rights/177
| [   13.809144][  T177] Modules linked in:
| [   13.809540][  T177] Tainted: [W]=WARN
[   13.809644][  T177] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.809813][  T177] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.809981][  T177] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.810446][  T177] RSP: 0018:ffa00000005a7a78 EFLAGS: 00010286
[   13.810616][  T177] RAX: 00000000ffffffa6 RBX: ff1100000c906c80 RCX: 1ff40000000b4f15
[   13.810814][  T177] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c906d3c
[   13.811010][  T177] RBP: ff110000025f4000 R08: 1fe2200001920da9 R09: ff110000100a5180
[   13.811204][  T177] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   13.811398][  T177] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000025f4000
[   13.811597][  T177] FS:  00007fa0a8e27740(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   13.811831][  T177] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.811996][  T177] CR2: 00007fa0a8e21000 CR3: 0000000010a7b005 CR4: 0000000000771ef0
[   13.812192][  T177] PKRU: 55555554
[   13.812289][  T177] Call Trace:
[   13.812389][  T177]  <TASK>
[   13.812457][  T177]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.812590][  T177]  ? notifier_call_chain (kernel/notifier.c:85)
[   13.812722][  T177]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.812828][  T177]  register_netdevice (net/core/dev.c:11488)
[   13.812960][  T177]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   13.813123][  T177]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.813256][  T177]  register_netdev (net/core/dev.c:11552)
[   13.813387][  T177]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   13.813518][  T177]  ops_init (net/core/net_namespace.c:137)
[   13.813622][  T177]  setup_net (net/core/net_namespace.c:446)
[   13.813722][  T177]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   13.813860][  T177]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   13.813990][  T177]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   13.814121][  T177]  copy_net_ns (net/core/net_namespace.c:579)
[   13.814253][  T177]  create_new_namespaces (kernel/nsproxy.c:132)
[   13.814385][  T177]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   13.814516][  T177]  ksys_unshare (kernel/fork.c:3243)
[   13.814650][  T177]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.815292][  T177]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   13.815421][  T177]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.815552][  T177]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   13.815685][  T177]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.815873][  T177]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   13.816002][  T177]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   13.816133][  T177]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.816263][  T177]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.816392][  T177]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.816522][  T177]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.816685][  T177] RIP: 0033:0x7fa0a8f22bcb
[   13.816936][  T177] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   13.817399][  T177] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   13.817598][  T177] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   13.817846][  T177] RDX: 00000000004063a0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   13.818040][  T177] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   13.818234][  T177] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   13.818426][  T177] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   13.837619][   T12] ------------[ cut here ]------------
| [   13.837764][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   13.837994][   T12] Modules linked in:
| [   13.838347][   T12] Tainted: [W]=WARN
[   13.838434][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.838579][   T12] Workqueue: netns cleanup_net
[   13.838706][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.838869][   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
[   13.839277][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   13.839421][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c283e00 RCX: 1ff4000000018eed
[   13.839596][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c283ebc
[   13.839773][   T12] RBP: ff110000025f4000 R08: 1fe22000018507d9 R09: ff11000001aed1d0
[   13.839945][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   13.840120][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   13.840292][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   13.840510][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.840658][   T12] CR2: 00000000004090e8 CR3: 00000000108d9001 CR4: 0000000000771ef0
[   13.840834][   T12] PKRU: 55555554
[   13.840921][   T12] Call Trace:
[   13.841006][   T12]  <TASK>
[   13.841067][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   13.841220][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   13.841364][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   13.841479][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   13.841601][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   13.841716][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   13.841838][   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)
[   13.841959][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   13.842075][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   13.842194][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.842312][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   13.842429][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   13.842542][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   13.842663][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   13.842784][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.842901][   T12]  process_one_work (kernel/workqueue.c:3314)
[   13.843020][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   13.843143][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.843262][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   13.843382][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   13.843497][   T12]  kthread (kernel/kthread.c:436)
[   13.843588][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   13.843739][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.843856][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   13.843976][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   13.844119][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   13.844234][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.844348][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   13.846459][   T12] ------------[ cut here ]------------
| [   13.846574][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   13.846811][   T12] Modules linked in:
| [   13.847168][   T12] Tainted: [W]=WARN
[   13.847254][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.847398][   T12] Workqueue: netns cleanup_net
[   13.847518][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.847672][   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
[   13.848093][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   13.848238][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c115c40 RCX: 1ff4000000018eed
[   13.848409][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c115cfc
[   13.848579][   T12] RBP: ff1100000fd8c000 R08: 1fe2200001822ba1 R09: ff11000001aed1d0
[   13.848765][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   13.848938][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   13.849111][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   13.849313][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.849462][   T12] CR2: 00000000004090e8 CR3: 00000000108d9001 CR4: 0000000000771ef0
[   13.849638][   T12] PKRU: 55555554
[   13.849723][   T12] Call Trace:
[   13.849815][   T12]  <TASK>
[   13.849876][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   13.850023][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   13.850165][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   13.850282][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   13.850402][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   13.850517][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   13.850639][   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)
[   13.850762][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   13.850885][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   13.850999][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.851118][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   13.851238][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   13.851354][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   13.851470][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   13.851594][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.851712][   T12]  process_one_work (kernel/workqueue.c:3314)
[   13.851834][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   13.851949][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.852068][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   13.852191][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   13.852305][   T12]  kthread (kernel/kthread.c:436)
[   13.852391][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   13.852533][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.852652][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   13.852772][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   13.852915][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   13.853033][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.853148][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   13.855281][   T12] ------------[ cut here ]------------
| [   13.855399][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   13.855631][   T12] Modules linked in:
| [   13.855982][   T12] Tainted: [W]=WARN
[   13.856069][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.856221][   T12] Workqueue: netns cleanup_net
[   13.856340][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.856489][   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
[   13.856908][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   13.857056][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c1151c0 RCX: 1ff4000000018eed
[   13.857228][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c11527c
[   13.857400][   T12] RBP: ff11000001f89000 R08: 1fe2200001822a51 R09: ff11000001aed1d0
[   13.857571][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   13.857753][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   13.857926][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   13.858126][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.858269][   T12] CR2: 00000000004090e8 CR3: 00000000108d9001 CR4: 0000000000771ef0
[   13.858441][   T12] PKRU: 55555554
[   13.858530][   T12] Call Trace:
[   13.858620][   T12]  <TASK>
[   13.858680][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   13.858831][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   13.858978][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   13.859094][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   13.859216][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   13.859330][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   13.859449][   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)
[   13.859564][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   13.859686][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   13.859807][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.859925][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   13.860040][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   13.860154][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   13.860274][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   13.860398][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.860514][   T12]  process_one_work (kernel/workqueue.c:3314)
[   13.860636][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   13.860754][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.860874][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   13.860998][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   13.861113][   T12]  kthread (kernel/kthread.c:436)
[   13.861203][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   13.861346][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.861461][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   13.861576][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   13.861724][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   13.861844][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.861960][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   13.863926][   T12] ------------[ cut here ]------------
| [   13.864038][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   13.864267][   T12] Modules linked in:
| [   13.864621][   T12] Tainted: [W]=WARN
[   13.864708][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.864857][   T12] Workqueue: netns cleanup_net
[   13.864975][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.865141][   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
[   13.865550][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   13.865698][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c114ac0 RCX: 1ff4000000018eed
[   13.865876][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c114b7c
[   13.866051][   T12] RBP: ff11000007ca1000 R08: 1fe2200001822971 R09: ff11000001aed1d0
[   13.866223][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   13.866393][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   13.866567][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   13.866776][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.866921][   T12] CR2: 00000000004090e8 CR3: 00000000108d9001 CR4: 0000000000771ef0
[   13.867095][   T12] PKRU: 55555554
[   13.867181][   T12] Call Trace:
[   13.867267][   T12]  <TASK>
[   13.867326][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   13.867475][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   13.867623][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   13.867743][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   13.867859][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   13.867977][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   13.868092][   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)
[   13.868214][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   13.868334][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   13.868449][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.868568][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   13.868689][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   13.868808][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   13.868929][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   13.869043][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.869159][   T12]  process_one_work (kernel/workqueue.c:3314)
[   13.869280][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   13.869395][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.869515][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   13.869637][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   13.869761][   T12]  kthread (kernel/kthread.c:436)
[   13.869848][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   13.869992][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.870113][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   13.870228][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   13.870370][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   13.870487][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.870606][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   13.872497][   T12] ------------[ cut here ]------------
| [   13.872614][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   13.872845][   T12] Modules linked in:
| [   13.873191][   T12] Tainted: [W]=WARN
[   13.873277][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.873420][   T12] Workqueue: netns cleanup_net
[   13.873538][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.873691][   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
[   13.874105][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   13.874250][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c114580 RCX: 1ff4000000018eed
[   13.874422][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c11463c
[   13.874597][   T12] RBP: ff1100000fc51000 R08: 1fe22000018228c9 R09: ff11000001aed1d0
[   13.874774][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   13.874949][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   13.875122][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   13.875329][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.875478][   T12] CR2: 00000000004090e8 CR3: 00000000108d9001 CR4: 0000000000771ef0
[   13.875655][   T12] PKRU: 55555554
[   13.875745][   T12] Call Trace:
[   13.875832][   T12]  <TASK>
[   13.875893][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   13.876041][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   13.876185][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   13.876304][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   13.876422][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   13.876538][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   13.876664][   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)
[   13.876794][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   13.876913][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   13.877029][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.877147][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   13.877265][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   13.877381][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   13.877500][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   13.877619][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.877743][   T12]  process_one_work (kernel/workqueue.c:3314)
[   13.877862][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   13.877978][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.878099][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   13.878221][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   13.878338][   T12]  kthread (kernel/kthread.c:436)
[   13.878427][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   13.878657][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.878783][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   13.878899][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   13.879045][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   13.879235][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.879350][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   13.887753][  T179] ------------[ cut here ]------------
| [   13.887902][  T179] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/179
| [   13.888163][  T179] Modules linked in:
| [   13.888559][  T179] Tainted: [W]=WARN
[   13.888663][  T179] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.888834][  T179] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.889004][  T179] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.889469][  T179] RSP: 0018:ffa00000005d7a80 EFLAGS: 00010286
[   13.889650][  T179] RAX: 00000000ffffffa6 RBX: ff110000096c2ac0 RCX: 1ff40000000baf16
[   13.889849][  T179] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000096c2b7c
[   13.890043][  T179] RBP: ff11000001f64000 R08: 1fe22000012d8571 R09: ff11000008daae80
[   13.890238][  T179] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   13.890432][  T179] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000001f64000
[   13.890637][  T179] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   13.890871][  T179] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.891035][  T179] CR2: 00007fa0a8f22bc0 CR3: 000000000da86002 CR4: 0000000000771ef0
[   13.891230][  T179] PKRU: 55555554
[   13.891328][  T179] Call Trace:
[   13.891430][  T179]  <TASK>
[   13.891499][  T179]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.891637][  T179]  ? notifier_call_chain (kernel/notifier.c:85)
[   13.891772][  T179]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.891872][  T179]  register_netdevice (net/core/dev.c:11488)
[   13.892004][  T179]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   13.892167][  T179]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   13.892304][  T179]  register_netdev (net/core/dev.c:11552)
[   13.892438][  T179]  loopback_net_init (drivers/net/loopback.c:218)
[   13.892569][  T179]  ops_init (net/core/net_namespace.c:137)
[   13.892674][  T179]  setup_net (net/core/net_namespace.c:446)
[   13.892777][  T179]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   13.892907][  T179]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   13.893038][  T179]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   13.893176][  T179]  copy_net_ns (net/core/net_namespace.c:579)
[   13.893307][  T179]  create_new_namespaces (kernel/nsproxy.c:132)
[   13.893441][  T179]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   13.893573][  T179]  ksys_unshare (kernel/fork.c:3243)
[   13.893707][  T179]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.893842][  T179]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   13.893974][  T179]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.894109][  T179]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   13.894240][  T179]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.894371][  T179]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   13.894501][  T179]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   13.894634][  T179]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.894768][  T179]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.894897][  T179]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.895026][  T179]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.895188][  T179] RIP: 0033:0x7fa0a8f22bcb
[   13.895325][  T179] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   13.895799][  T179] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   13.895998][  T179] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   13.896192][  T179] RDX: 00000000004063a0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   13.896387][  T179] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   13.896587][  T179] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   13.896794][  T179] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   13.900513][  T179] ------------[ cut here ]------------
| [   13.900654][  T179] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/179
| [   13.900917][  T179] Modules linked in:
| [   13.901310][  T179] Tainted: [W]=WARN
[   13.901408][  T179] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.901568][  T179] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.901744][  T179] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.902211][  T179] RSP: 0018:ffa00000005d7918 EFLAGS: 00010286
[   13.902375][  T179] RAX: 00000000ffffffa6 RBX: ff1100000c1143c0 RCX: 1ff40000000baee9
[   13.902568][  T179] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c11447c
[   13.902777][  T179] RBP: ff1100000fdbc000 R08: 1fe2200001822891 R09: ff11000008daae80
[   13.902970][  T179] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   13.903163][  T179] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fdbc000
[   13.903357][  T179] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   13.903591][  T179] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.903761][  T179] CR2: 00007fa0a8f22bc0 CR3: 000000000da86002 CR4: 0000000000771ef0
[   13.903956][  T179] PKRU: 55555554
[   13.904052][  T179] Call Trace:
[   13.904148][  T179]  <TASK>
[   13.904214][  T179]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.904344][  T179]  ? notifier_call_chain (kernel/notifier.c:85)
[   13.904473][  T179]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.904574][  T179]  register_netdevice (net/core/dev.c:11488)
[   13.904710][  T179]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   13.904875][  T179]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   13.905007][  T179]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   13.905137][  T179]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   13.905267][  T179]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   13.905396][  T179]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   13.905530][  T179]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   13.905665][  T179]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   13.905802][  T179]  ops_init (net/core/net_namespace.c:137)
[   13.905901][  T179]  setup_net (net/core/net_namespace.c:446)
[   13.905999][  T179]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   13.906127][  T179]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   13.906257][  T179]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   13.906391][  T179]  copy_net_ns (net/core/net_namespace.c:579)
[   13.906522][  T179]  create_new_namespaces (kernel/nsproxy.c:132)
[   13.906659][  T179]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   13.906795][  T179]  ksys_unshare (kernel/fork.c:3243)
[   13.906924][  T179]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.907052][  T179]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   13.907180][  T179]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.907313][  T179]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   13.907443][  T179]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.907572][  T179]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   13.907706][  T179]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   13.907838][  T179]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.907966][  T179]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.908095][  T179]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.908224][  T179]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.908388][  T179] RIP: 0033:0x7fa0a8f22bcb
[   13.908521][  T179] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   13.908987][  T179] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   13.909179][  T179] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   13.909376][  T179] RDX: 00000000004063a0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   13.909569][  T179] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   13.909771][  T179] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   13.909963][  T179] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   13.911869][   T12] ------------[ cut here ]------------
| [   13.911992][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   13.912222][   T12] Modules linked in:
| [   13.912577][   T12] Tainted: [W]=WARN
[   13.912668][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.912863][   T12] Workqueue: netns cleanup_net
[   13.912993][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.913147][   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
[   13.913561][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   13.913711][   T12] RAX: 00000000ffffffa6 RBX: ff11000009850580 RCX: 1ff4000000018ed5
[   13.913891][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000985063c
[   13.914065][   T12] RBP: ff11000005119000 R08: 1fe220000130a0c9 R09: ff11000001aed1d0
[   13.914238][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   13.914412][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   13.914590][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   13.914803][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.914950][   T12] CR2: 00000000004090e8 CR3: 00000000108d9001 CR4: 0000000000771ef0
[   13.915136][   T12] PKRU: 55555554
[   13.915222][   T12] Call Trace:
[   13.915313][   T12]  <TASK>
[   13.915375][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   13.915527][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   13.915684][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   13.915807][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   13.915930][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   13.916047][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   13.916164][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   13.916282][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   13.916401][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   13.916522][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.916646][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   13.916769][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   13.916886][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   13.917004][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   13.917120][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.917240][   T12]  process_one_work (kernel/workqueue.c:3314)
[   13.917361][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   13.917477][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.917601][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   13.917723][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   13.917847][   T12]  kthread (kernel/kthread.c:436)
[   13.917935][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   13.918084][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.918201][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   13.918320][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   13.918467][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   13.918587][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.918705][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   13.925183][  T179] ------------[ cut here ]------------
| [   13.925320][  T179] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/179
| [   13.925580][  T179] Modules linked in:
| [   13.925991][  T179] Tainted: [W]=WARN
[   13.926093][  T179] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.926257][  T179] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.926426][  T179] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.926905][  T179] RSP: 0018:ffa00000005d78f8 EFLAGS: 00010286
[   13.927069][  T179] RAX: 00000000ffffffa6 RBX: ff110000097a9700 RCX: 1ff40000000baee5
[   13.927263][  T179] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000097a97bc
[   13.927457][  T179] RBP: ff1100000e6d1000 R08: 1fe22000012f52f9 R09: ff11000008daae80
[   13.927661][  T179] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   13.927862][  T179] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e6d1000
[   13.928058][  T179] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   13.928285][  T179] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.928452][  T179] CR2: 00007fa0a8f22bc0 CR3: 000000000da86002 CR4: 0000000000771ef0
[   13.928655][  T179] PKRU: 55555554
[   13.928760][  T179] Call Trace:
[   13.928858][  T179]  <TASK>
[   13.928925][  T179]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.929057][  T179]  ? notifier_call_chain (kernel/notifier.c:85)
[   13.929190][  T179]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.929291][  T179]  register_netdevice (net/core/dev.c:11488)
[   13.929427][  T179]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   13.929592][  T179]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   13.929724][  T179]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   13.929861][  T179]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   13.929992][  T179]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   13.930124][  T179]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   13.930255][  T179]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   13.930391][  T179]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   13.930522][  T179]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   13.930660][  T179]  vti_init_net (net/ipv4/ip_vti.c:517)
[   13.930795][  T179]  ops_init (net/core/net_namespace.c:137)
[   13.930895][  T179]  setup_net (net/core/net_namespace.c:446)
[   13.930995][  T179]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   13.931125][  T179]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   13.931260][  T179]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   13.931392][  T179]  copy_net_ns (net/core/net_namespace.c:579)
[   13.931523][  T179]  create_new_namespaces (kernel/nsproxy.c:132)
[   13.931660][  T179]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   13.931798][  T179]  ksys_unshare (kernel/fork.c:3243)
[   13.931929][  T179]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.932060][  T179]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   13.932192][  T179]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.932324][  T179]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   13.932455][  T179]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.932590][  T179]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   13.932720][  T179]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   13.932855][  T179]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.932985][  T179]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.933116][  T179]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.933252][  T179]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.933413][  T179] RIP: 0033:0x7fa0a8f22bcb
[   13.933550][  T179] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   13.934019][  T179] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   13.934220][  T179] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   13.934414][  T179] RDX: 00000000004063a0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   13.934612][  T179] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   13.934811][  T179] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   13.935011][  T179] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   13.939064][  T179] ------------[ cut here ]------------
| [   13.939205][  T179] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/179
| [   13.939458][  T179] Modules linked in:
| [   13.939858][  T179] Tainted: [W]=WARN
[   13.939955][  T179] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.940121][  T179] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.940288][  T179] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.940752][  T179] RSP: 0018:ffa00000005d7a78 EFLAGS: 00010286
[   13.940915][  T179] RAX: 00000000ffffffa6 RBX: ff110000097a8900 RCX: 1ff40000000baf15
[   13.941111][  T179] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000097a89bc
[   13.941305][  T179] RBP: ff11000008de1000 R08: 1fe22000012f5139 R09: ff11000008daae80
[   13.941497][  T179] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   13.941694][  T179] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008de1000
[   13.941896][  T179] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   13.942122][  T179] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.942284][  T179] CR2: 00007fa0a8f22bc0 CR3: 000000000da86002 CR4: 0000000000771ef0
[   13.942479][  T179] PKRU: 55555554
[   13.942575][  T179] Call Trace:
[   13.942691][  T179]  <TASK>
[   13.942763][  T179]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.942893][  T179]  ? notifier_call_chain (kernel/notifier.c:85)
[   13.943023][  T179]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.943121][  T179]  register_netdevice (net/core/dev.c:11488)
[   13.943252][  T179]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   13.943413][  T179]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.943547][  T179]  register_netdev (net/core/dev.c:11552)
[   13.943679][  T179]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   13.943814][  T179]  ops_init (net/core/net_namespace.c:137)
[   13.943914][  T179]  setup_net (net/core/net_namespace.c:446)
[   13.944011][  T179]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   13.944140][  T179]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   13.944269][  T179]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   13.944400][  T179]  copy_net_ns (net/core/net_namespace.c:579)
[   13.944532][  T179]  create_new_namespaces (kernel/nsproxy.c:132)
[   13.944667][  T179]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   13.944802][  T179]  ksys_unshare (kernel/fork.c:3243)
[   13.944930][  T179]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.945059][  T179]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   13.945187][  T179]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.945315][  T179]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   13.945446][  T179]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.945576][  T179]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   13.945708][  T179]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   13.945839][  T179]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.945967][  T179]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.946096][  T179]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.946224][  T179]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.946385][  T179] RIP: 0033:0x7fa0a8f22bcb
[   13.946520][  T179] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   13.946988][  T179] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   13.947182][  T179] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   13.947376][  T179] RDX: 00000000004063a0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   13.947570][  T179] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   13.947774][  T179] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   13.947965][  T179] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   13.951961][  T179] ------------[ cut here ]------------
| [   13.952096][  T179] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/179
| [   13.952351][  T179] Modules linked in:
| [   13.953262][  T179] Tainted: [W]=WARN
[   13.953361][  T179] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.953524][  T179] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.953694][  T179] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.954212][  T179] RSP: 0018:ffa00000005d7a68 EFLAGS: 00010286
[   13.954375][  T179] RAX: 00000000ffffffa6 RBX: ff1100000b62e200 RCX: 1ff40000000baf13
[   13.954569][  T179] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b62e2bc
[   13.954824][  T179] RBP: ff11000010074000 R08: 1fe22000016c5c59 R09: ff11000008daae80
[   13.955074][  T179] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   13.955268][  T179] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000010074000
[   13.955462][  T179] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   13.955693][  T179] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.955912][  T179] CR2: 00007fa0a8f22bc0 CR3: 000000000da86002 CR4: 0000000000771ef0
[   13.956106][  T179] PKRU: 55555554
[   13.956202][  T179] Call Trace:
[   13.956299][  T179]  <TASK>
[   13.956366][  T179]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.956495][  T179]  ? notifier_call_chain (kernel/notifier.c:85)
[   13.956631][  T179]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.956730][  T179]  register_netdevice (net/core/dev.c:11488)
[   13.956915][  T179]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   13.957078][  T179]  register_netdev (net/core/dev.c:11552)
[   13.957207][  T179]  sit_init_net (net/ipv6/sit.c:1860)
[   13.957339][  T179]  ops_init (net/core/net_namespace.c:137)
[   13.957438][  T179]  setup_net (net/core/net_namespace.c:446)
[   13.957537][  T179]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   13.957670][  T179]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   13.957854][  T179]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   13.957987][  T179]  copy_net_ns (net/core/net_namespace.c:579)
[   13.958118][  T179]  create_new_namespaces (kernel/nsproxy.c:132)
[   13.958249][  T179]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   13.958380][  T179]  ksys_unshare (kernel/fork.c:3243)
[   13.958510][  T179]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.958642][  T179]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   13.958825][  T179]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.958955][  T179]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   13.959086][  T179]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.959217][  T179]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   13.959345][  T179]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   13.959475][  T179]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.959612][  T179]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.959795][  T179]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.959923][  T179]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.960082][  T179] RIP: 0033:0x7fa0a8f22bcb
[   13.960215][  T179] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   13.960681][  T179] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   13.960933][  T179] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   13.961124][  T179] RDX: 00000000004063a0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   13.961316][  T179] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   13.961511][  T179] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   13.961706][  T179] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   13.978416][  T179] ------------[ cut here ]------------
| [   13.978605][  T179] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/179
| [   13.978927][  T179] Modules linked in:
| [   13.979411][  T179] Tainted: [W]=WARN
[   13.979557][  T179] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.979797][  T179] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.980017][  T179] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.980531][  T179] RSP: 0018:ffa00000005d7a78 EFLAGS: 00010286
[   13.980762][  T179] RAX: 00000000ffffffa6 RBX: ff1100001081d000 RCX: 1ff40000000baf15
[   13.981003][  T179] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001081d0bc
[   13.981242][  T179] RBP: ff11000001f61000 R08: 1fe2200002103a19 R09: ff11000008daae80
[   13.981483][  T179] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   13.981731][  T179] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000001f61000
[   13.981984][  T179] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   13.982261][  T179] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.982477][  T179] CR2: 00007fa0a8e9a0a0 CR3: 000000000da86004 CR4: 0000000000771ef0
[   13.982725][  T179] PKRU: 55555554
[   13.982902][  T179] Call Trace:
[   13.983043][  T179]  <TASK>
[   13.983156][  T179]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.983333][  T179]  ? notifier_call_chain (kernel/notifier.c:85)
[   13.983509][  T179]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.983662][  T179]  register_netdevice (net/core/dev.c:11488)
[   13.983854][  T179]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   13.984059][  T179]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.984238][  T179]  register_netdev (net/core/dev.c:11552)
[   13.984416][  T179]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   13.984600][  T179]  ops_init (net/core/net_namespace.c:137)
[   13.984759][  T179]  setup_net (net/core/net_namespace.c:446)
[   13.984905][  T179]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   13.985083][  T179]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   13.985259][  T179]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   13.985437][  T179]  copy_net_ns (net/core/net_namespace.c:579)
[   13.985622][  T179]  create_new_namespaces (kernel/nsproxy.c:132)
[   13.985814][  T179]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   13.985991][  T179]  ksys_unshare (kernel/fork.c:3243)
[   13.986167][  T179]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.986347][  T179]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   13.986521][  T179]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.986704][  T179]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   13.986894][  T179]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.987072][  T179]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   13.987247][  T179]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   13.987427][  T179]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.987610][  T179]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.987803][  T179]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.987981][  T179]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.988187][  T179] RIP: 0033:0x7fa0a8f22bcb
[   13.988367][  T179] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   13.988895][  T179] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   13.989137][  T179] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   13.989376][  T179] RDX: 00000000004063a0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   13.989622][  T179] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   13.989877][  T179] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   13.990115][  T179] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   13.996984][   T12] ------------[ cut here ]------------
| [   13.997115][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   13.997344][   T12] Modules linked in:
| [   13.997699][   T12] Tainted: [W]=WARN
[   13.997799][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.997947][   T12] Workqueue: netns cleanup_net
[   13.998068][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.998216][   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
[   13.998632][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   13.998785][   T12] RAX: 00000000ffffffa6 RBX: ff11000010816ac0 RCX: 1ff4000000018eed
[   13.998956][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000010816b7c
[   13.999127][   T12] RBP: ff11000001f61000 R08: 1fe2200002102d71 R09: ff11000001aed1d0
[   13.999303][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   13.999476][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   13.999651][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   13.999858][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.000001][   T12] CR2: 00000000004090e8 CR3: 00000000108d9001 CR4: 0000000000771ef0
[   14.000176][   T12] PKRU: 55555554
[   14.000263][   T12] Call Trace:
[   14.000349][   T12]  <TASK>
[   14.000410][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   14.000558][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   14.000704][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   14.000828][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   14.000946][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   14.001062][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   14.001179][   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)
[   14.001296][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   14.001413][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   14.001532][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.001653][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   14.001813][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   14.001927][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   14.002045][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   14.002159][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.002281][   T12]  process_one_work (kernel/workqueue.c:3314)
[   14.002400][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   14.002516][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   14.002640][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   14.002769][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   14.002886][   T12]  kthread (kernel/kthread.c:436)
[   14.002973][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   14.003120][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   14.003235][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   14.003351][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   14.003499][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   14.003618][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   14.003740][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   14.005812][   T12] ------------[ cut here ]------------
| [   14.005927][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   14.006150][   T12] Modules linked in:
| [   14.006502][   T12] Tainted: [W]=WARN
[   14.006590][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.006745][   T12] Workqueue: netns cleanup_net
[   14.006866][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.007022][   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
[   14.007435][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   14.007585][   T12] RAX: 00000000ffffffa6 RBX: ff110000108171c0 RCX: 1ff4000000018eed
[   14.007763][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001081727c
[   14.007937][   T12] RBP: ff11000010074000 R08: 1fe2200002102e51 R09: ff11000001aed1d0
[   14.008108][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   14.008280][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   14.008456][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   14.008663][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.008815][   T12] CR2: 00000000004090e8 CR3: 00000000108d9001 CR4: 0000000000771ef0
[   14.008996][   T12] PKRU: 55555554
[   14.009086][   T12] Call Trace:
[   14.009181][   T12]  <TASK>
[   14.009243][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   14.009407][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   14.009552][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   14.009692][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   14.009827][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   14.009942][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   14.010059][   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)
[   14.010189][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   14.010307][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   14.010433][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.010557][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   14.010687][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   14.010805][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   14.010923][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   14.011046][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.011170][   T12]  process_one_work (kernel/workqueue.c:3314)
[   14.011290][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   14.011415][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   14.011542][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   14.011665][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   14.011785][   T12]  kthread (kernel/kthread.c:436)
[   14.011871][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   14.012027][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   14.012159][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   14.012288][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   14.012447][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   14.012562][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   14.012690][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   14.014840][   T12] ------------[ cut here ]------------
| [   14.014956][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   14.015198][   T12] Modules linked in:
| [   14.015579][   T12] Tainted: [W]=WARN
[   14.015680][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.016293][   T12] Workqueue: netns cleanup_net
[   14.016422][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.016576][   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
[   14.017060][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   14.017214][   T12] RAX: 00000000ffffffa6 RBX: ff110000108178c0 RCX: 1ff4000000018eed
[   14.017398][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001081797c
[   14.017587][   T12] RBP: ff11000008de1000 R08: 1fe2200002102f31 R09: ff11000001aed1d0
[   14.017834][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   14.018076][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   14.018264][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   14.018480][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.018626][   T12] CR2: 00000000004090e8 CR3: 00000000108d9001 CR4: 0000000000771ef0
[   14.018851][   T12] PKRU: 55555554
[   14.018937][   T12] Call Trace:
[   14.019034][   T12]  <TASK>
[   14.019098][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   14.019260][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   14.019411][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   14.019526][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   14.019672][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   14.019841][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   14.019966][   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)
[   14.020082][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   14.020202][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   14.020317][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.020441][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   14.020556][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   14.020680][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   14.020843][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   14.020957][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.021073][   T12]  process_one_work (kernel/workqueue.c:3314)
[   14.021192][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   14.021308][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   14.021429][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   14.021549][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   14.021667][   T12]  kthread (kernel/kthread.c:436)
[   14.021800][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   14.021949][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   14.022065][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   14.022182][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   14.022327][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   14.022441][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   14.022558][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   14.032724][   T12] ------------[ cut here ]------------
| [   14.032855][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   14.033084][   T12] Modules linked in:
| [   14.033436][   T12] Tainted: [W]=WARN
[   14.033525][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.033675][   T12] Workqueue: netns cleanup_net
[   14.033802][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.033952][   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
[   14.034378][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   14.034527][   T12] RAX: 00000000ffffffa6 RBX: ff11000010817c40 RCX: 1ff4000000018eed
[   14.034704][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000010817cfc
[   14.035375][   T12] RBP: ff1100000e6d1000 R08: 1fe2200002102fa1 R09: ff11000001aed1d0
[   14.035548][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   14.035723][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   14.035996][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   14.036198][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.036342][   T12] CR2: 00000000004090e8 CR3: 00000000108d9001 CR4: 0000000000771ef0
[   14.036515][   T12] PKRU: 55555554
[   14.036607][   T12] Call Trace:
[   14.036693][   T12]  <TASK>
[   14.036829][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   14.036975][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   14.037117][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   14.037233][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   14.037353][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   14.037472][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   14.037606][   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)
[   14.037723][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   14.037849][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   14.037963][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.038086][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   14.038202][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   14.038321][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   14.038437][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   14.038552][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.038672][   T12]  process_one_work (kernel/workqueue.c:3314)
[   14.038796][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   14.038911][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   14.039030][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   14.039153][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   14.039268][   T12]  kthread (kernel/kthread.c:436)
[   14.039356][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   14.039518][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   14.039639][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   14.039760][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   14.039904][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   14.040019][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   14.040134][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   14.042033][   T12] ------------[ cut here ]------------
| [   14.042146][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   14.042368][   T12] Modules linked in:
| [   14.042719][   T12] Tainted: [W]=WARN
[   14.043312][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.043545][   T12] Workqueue: netns cleanup_net
[   14.043676][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.043926][   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
[   14.044333][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   14.044478][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c115e00 RCX: 1ff4000000018eed
[   14.044652][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c115ebc
[   14.044895][   T12] RBP: ff1100000fdbc000 R08: 1fe2200001822bd9 R09: ff11000001aed1d0
[   14.045066][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   14.045237][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   14.045414][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   14.045617][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.045795][   T12] CR2: 00000000004090e8 CR3: 00000000108d9001 CR4: 0000000000771ef0
[   14.045971][   T12] PKRU: 55555554
[   14.046057][   T12] Call Trace:
[   14.046143][   T12]  <TASK>
[   14.046203][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   14.046354][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   14.046498][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   14.046617][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   14.046753][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   14.046868][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   14.046983][   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)
[   14.047099][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   14.047216][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   14.047330][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.047452][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   14.047567][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   14.047685][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   14.047805][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   14.047920][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.048036][   T12]  process_one_work (kernel/workqueue.c:3314)
[   14.048154][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   14.048274][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   14.048393][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   14.048512][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   14.048631][   T12]  kthread (kernel/kthread.c:436)
[   14.048718][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   14.048864][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   14.048980][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   14.049096][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   14.049239][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   14.049358][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   14.049473][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   14.063409][  T181] ------------[ cut here ]------------
| [   14.063555][  T181] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/181
| [   14.063825][  T181] Modules linked in:
| [   14.064225][  T181] Tainted: [W]=WARN
[   14.064324][  T181] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.064490][  T181] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.064663][  T181] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   14.065137][  T181] RSP: 0018:ffa0000000577a80 EFLAGS: 00010286
[   14.065301][  T181] RAX: 00000000ffffffa6 RBX: ff110000028563c0 RCX: 1ff40000000aef16
[   14.065495][  T181] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000285647c
[   14.065691][  T181] RBP: ff1100000fd49000 R08: 1fe220000050ac91 R09: ff11000008da8b80
[   14.065892][  T181] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   14.066086][  T181] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fd49000
[   14.066284][  T181] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   14.066511][  T181] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.066679][  T181] CR2: 00007fa0a8f22bc0 CR3: 0000000010a7b003 CR4: 0000000000771ef0
[   14.066877][  T181] PKRU: 55555554
[   14.066974][  T181] Call Trace:
[   14.067072][  T181]  <TASK>
[   14.067139][  T181]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   14.067268][  T181]  ? notifier_call_chain (kernel/notifier.c:85)
[   14.067399][  T181]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   14.067498][  T181]  register_netdevice (net/core/dev.c:11488)
[   14.067634][  T181]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   14.067800][  T181]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   14.067933][  T181]  register_netdev (net/core/dev.c:11552)
[   14.068063][  T181]  loopback_net_init (drivers/net/loopback.c:218)
[   14.068197][  T181]  ops_init (net/core/net_namespace.c:137)
[   14.068297][  T181]  setup_net (net/core/net_namespace.c:446)
[   14.068396][  T181]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   14.068527][  T181]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   14.068662][  T181]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   14.068800][  T181]  copy_net_ns (net/core/net_namespace.c:579)
[   14.068935][  T181]  create_new_namespaces (kernel/nsproxy.c:132)
[   14.069069][  T181]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   14.069199][  T181]  ksys_unshare (kernel/fork.c:3243)
[   14.069328][  T181]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   14.069458][  T181]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   14.069591][  T181]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.069722][  T181]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   14.069860][  T181]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.069991][  T181]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   14.070121][  T181]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   14.070251][  T181]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   14.070382][  T181]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   14.070512][  T181]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   14.070646][  T181]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.070811][  T181] RIP: 0033:0x7fa0a8f22bcb
[   14.070951][  T181] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   14.071417][  T181] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   14.071618][  T181] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   14.071822][  T181] RDX: 00000000004063a0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   14.072015][  T181] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   14.072208][  T181] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   14.072401][  T181] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   14.074343][   T12] ------------[ cut here ]------------
| [   14.074467][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   14.074701][   T12] Modules linked in:
| [   14.075069][   T12] Tainted: [W]=WARN
[   14.075157][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.075304][   T12] Workqueue: netns cleanup_net
[   14.075425][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.075578][   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
[   14.076107][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   14.076256][   T12] RAX: 00000000ffffffa6 RBX: ff11000002856ac0 RCX: 1ff4000000018ed5
[   14.076432][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000002856b7c
[   14.076613][   T12] RBP: ff11000001f64000 R08: 1fe220000050ad71 R09: ff11000001aed1d0
[   14.076839][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   14.077015][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   14.077192][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   14.077399][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.077546][   T12] CR2: 00000000004090e8 CR3: 00000000108d9001 CR4: 0000000000771ef0
[   14.077729][   T12] PKRU: 55555554
[   14.077864][   T12] Call Trace:
[   14.077952][   T12]  <TASK>
[   14.078014][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   14.078165][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   14.078361][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   14.078482][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   14.078605][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   14.078722][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   14.078868][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   14.078988][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   14.079113][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   14.079231][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.079352][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   14.079470][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   14.079588][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   14.079708][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   14.079831][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.079951][   T12]  process_one_work (kernel/workqueue.c:3314)
[   14.080083][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   14.080201][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   14.080323][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   14.080446][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   14.080564][   T12]  kthread (kernel/kthread.c:436)
[   14.080657][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   14.080811][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   14.080930][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   14.081048][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   14.081196][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   14.081314][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   14.081432][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   14.087253][  T181] ------------[ cut here ]------------
| [   14.087390][  T181] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/181
| [   14.087657][  T181] Modules linked in:
| [   14.088056][  T181] Tainted: [W]=WARN
[   14.088154][  T181] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.088316][  T181] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.088484][  T181] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   14.088955][  T181] RSP: 0018:ffa0000000577918 EFLAGS: 00010286
[   14.089117][  T181] RAX: 00000000ffffffa6 RBX: ff1100000285f540 RCX: 1ff40000000aeee9
[   14.089309][  T181] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000285f5fc
[   14.089500][  T181] RBP: ff1100000ffb1000 R08: 1fe220000050bec1 R09: ff11000008da8b80
[   14.089697][  T181] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   14.089893][  T181] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000ffb1000
[   14.090087][  T181] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   14.090313][  T181] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.090474][  T181] CR2: 00007fa0a8f22bc0 CR3: 0000000010a7b003 CR4: 0000000000771ef0
[   14.090675][  T181] PKRU: 55555554
[   14.090776][  T181] Call Trace:
[   14.090871][  T181]  <TASK>
[   14.090938][  T181]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   14.091067][  T181]  ? notifier_call_chain (kernel/notifier.c:85)
[   14.091196][  T181]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   14.091295][  T181]  register_netdevice (net/core/dev.c:11488)
[   14.091427][  T181]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   14.091592][  T181]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   14.091723][  T181]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   14.091858][  T181]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   14.091986][  T181]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   14.092115][  T181]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   14.092245][  T181]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   14.092376][  T181]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   14.092507][  T181]  ops_init (net/core/net_namespace.c:137)
[   14.092610][  T181]  setup_net (net/core/net_namespace.c:446)
[   14.092708][  T181]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   14.092840][  T181]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   14.092968][  T181]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   14.093099][  T181]  copy_net_ns (net/core/net_namespace.c:579)
[   14.093228][  T181]  create_new_namespaces (kernel/nsproxy.c:132)
[   14.093360][  T181]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   14.093489][  T181]  ksys_unshare (kernel/fork.c:3243)
[   14.093621][  T181]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   14.093757][  T181]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   14.093886][  T181]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.094015][  T181]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   14.094146][  T181]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.094278][  T181]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   14.094405][  T181]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   14.094533][  T181]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   14.094663][  T181]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   14.094797][  T181]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   14.094925][  T181]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.095084][  T181] RIP: 0033:0x7fa0a8f22bcb
[   14.095217][  T181] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   14.095681][  T181] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   14.095885][  T181] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   14.096077][  T181] RDX: 00000000004063a0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   14.096270][  T181] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   14.096463][  T181] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   14.096661][  T181] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   14.100470][  T181] ------------[ cut here ]------------
| [   14.100607][  T181] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/181
| [   14.100870][  T181] Modules linked in:
| [   14.101267][  T181] Tainted: [W]=WARN
[   14.101368][  T181] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.101532][  T181] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.101704][  T181] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   14.102173][  T181] RSP: 0018:ffa00000005778f8 EFLAGS: 00010286
[   14.102337][  T181] RAX: 00000000ffffffa6 RBX: ff1100000285e580 RCX: 1ff40000000aeee5
[   14.102531][  T181] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000285e63c
[   14.102737][  T181] RBP: ff1100000ff69000 R08: 1fe220000050bcc9 R09: ff11000008da8b80
[   14.102933][  T181] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   14.103128][  T181] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000ff69000
[   14.103326][  T181] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   14.103555][  T181] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.103726][  T181] CR2: 00007fa0a8f22bc0 CR3: 0000000010a7b003 CR4: 0000000000771ef0
[   14.103928][  T181] PKRU: 55555554
[   14.104026][  T181] Call Trace:
[   14.104123][  T181]  <TASK>
[   14.104191][  T181]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   14.104322][  T181]  ? notifier_call_chain (kernel/notifier.c:85)
[   14.104453][  T181]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   14.104554][  T181]  register_netdevice (net/core/dev.c:11488)
[   14.104690][  T181]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   14.104858][  T181]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   14.104991][  T181]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   14.105122][  T181]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   14.105254][  T181]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   14.105387][  T181]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   14.105520][  T181]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   14.105657][  T181]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   14.105793][  T181]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   14.105926][  T181]  vti_init_net (net/ipv4/ip_vti.c:517)
[   14.106057][  T181]  ops_init (net/core/net_namespace.c:137)
[   14.106157][  T181]  setup_net (net/core/net_namespace.c:446)
[   14.106257][  T181]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   14.106388][  T181]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   14.106519][  T181]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   14.106654][  T181]  copy_net_ns (net/core/net_namespace.c:579)
[   14.106790][  T181]  create_new_namespaces (kernel/nsproxy.c:132)
[   14.106923][  T181]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   14.107055][  T181]  ksys_unshare (kernel/fork.c:3243)
[   14.107185][  T181]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   14.107314][  T181]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   14.107445][  T181]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.107576][  T181]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   14.107713][  T181]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.107849][  T181]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   14.107980][  T181]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   14.108110][  T181]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   14.108240][  T181]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   14.108373][  T181]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   14.108504][  T181]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.108670][  T181] RIP: 0033:0x7fa0a8f22bcb
[   14.108813][  T181] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   14.109278][  T181] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   14.109478][  T181] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   14.109679][  T181] RDX: 00000000004063a0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   14.109875][  T181] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   14.110070][  T181] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   14.110264][  T181] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   14.115275][  T181] ------------[ cut here ]------------
| [   14.115413][  T181] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/181
| [   14.115674][  T181] Modules linked in:
| [   14.116073][  T181] Tainted: [W]=WARN
[   14.116171][  T181] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.116337][  T181] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.116505][  T181] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   14.117034][  T181] RSP: 0018:ffa0000000577a78 EFLAGS: 00010286
[   14.117198][  T181] RAX: 00000000ffffffa6 RBX: ff11000002857700 RCX: 1ff40000000aef15
[   14.117390][  T181] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000028577bc
[   14.117588][  T181] RBP: ff1100000ff19000 R08: 1fe220000050aef9 R09: ff11000008da8b80
[   14.117837][  T181] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   14.118086][  T181] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000ff19000
[   14.118283][  T181] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   14.118510][  T181] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.118678][  T181] CR2: 00007fa0a8f22bc0 CR3: 0000000010a7b003 CR4: 0000000000771ef0
[   14.118925][  T181] PKRU: 55555554
[   14.119022][  T181] Call Trace:
[   14.119119][  T181]  <TASK>
[   14.119186][  T181]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   14.119316][  T181]  ? notifier_call_chain (kernel/notifier.c:85)
[   14.119444][  T181]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   14.119544][  T181]  register_netdevice (net/core/dev.c:11488)
[   14.119679][  T181]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   14.119893][  T181]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.120027][  T181]  register_netdev (net/core/dev.c:11552)
[   14.120156][  T181]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   14.120288][  T181]  ops_init (net/core/net_namespace.c:137)
[   14.120388][  T181]  setup_net (net/core/net_namespace.c:446)
[   14.120486][  T181]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   14.120622][  T181]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   14.120807][  T181]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   14.120940][  T181]  copy_net_ns (net/core/net_namespace.c:579)
[   14.121071][  T181]  create_new_namespaces (kernel/nsproxy.c:132)
[   14.121203][  T181]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   14.121334][  T181]  ksys_unshare (kernel/fork.c:3243)
[   14.121463][  T181]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   14.121597][  T181]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   14.121725][  T181]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.121912][  T181]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   14.122042][  T181]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.122174][  T181]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   14.122303][  T181]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   14.122432][  T181]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   14.122562][  T181]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   14.122695][  T181]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   14.122879][  T181]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.123040][  T181] RIP: 0033:0x7fa0a8f22bcb
[   14.123175][  T181] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   14.123642][  T181] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   14.123893][  T181] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   14.124089][  T181] RDX: 00000000004063a0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   14.124283][  T181] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   14.124478][  T181] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   14.124678][  T181] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   14.142779][  T181] ------------[ cut here ]------------
| [   14.142924][  T181] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: scm_rights/181
| [   14.143183][  T181] Modules linked in:
| [   14.143576][  T181] Tainted: [W]=WARN
[   14.143683][  T181] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.143850][  T181] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.144018][  T181] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   14.144486][  T181] RSP: 0018:ffa0000000577a68 EFLAGS: 00010286
[   14.144657][  T181] RAX: 00000000ffffffa6 RBX: ff110000028598c0 RCX: 1ff40000000aef13
[   14.144857][  T181] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000285997c
[   14.145048][  T181] RBP: ff11000008e4c000 R08: 1fe220000050b331 R09: ff11000008da8b80
[   14.145242][  T181] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   14.145438][  T181] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008e4c000
[   14.145639][  T181] FS:  00007fa0a8e27740(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   14.145875][  T181] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.146040][  T181] CR2: 00000000004090e8 CR3: 0000000010a7b003 CR4: 0000000000771ef0
[   14.146234][  T181] PKRU: 55555554
[   14.146330][  T181] Call Trace:
[   14.146426][  T181]  <TASK>
[   14.146494][  T181]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   14.146627][  T181]  ? notifier_call_chain (kernel/notifier.c:85)
[   14.146763][  T181]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   14.146863][  T181]  register_netdevice (net/core/dev.c:11488)
[   14.146995][  T181]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   14.147160][  T181]  register_netdev (net/core/dev.c:11552)
[   14.147289][  T181]  sit_init_net (net/ipv6/sit.c:1860)
[   14.147423][  T181]  ops_init (net/core/net_namespace.c:137)
[   14.147523][  T181]  setup_net (net/core/net_namespace.c:446)
[   14.147625][  T181]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   14.147759][  T181]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   14.147891][  T181]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   14.148024][  T181]  copy_net_ns (net/core/net_namespace.c:579)
[   14.148155][  T181]  create_new_namespaces (kernel/nsproxy.c:132)
[   14.148287][  T181]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   14.148416][  T181]  ksys_unshare (kernel/fork.c:3243)
[   14.148543][  T181]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   14.148678][  T181]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   14.148812][  T181]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.148942][  T181]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   14.149071][  T181]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.149201][  T181]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   14.149330][  T181]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   14.149458][  T181]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   14.149591][  T181]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   14.149721][  T181]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   14.149857][  T181]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.150018][  T181] RIP: 0033:0x7fa0a8f22bcb
[   14.150154][  T181] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   14.150615][  T181] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   14.150815][  T181] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   14.151006][  T181] RDX: 00000000004063a0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   14.151197][  T181] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   14.151389][  T181] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   14.151589][  T181] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   14.156222][  T181] ------------[ cut here ]------------
| [   14.156357][  T181] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: scm_rights/181
| [   14.156616][  T181] Modules linked in:
| [   14.157010][  T181] Tainted: [W]=WARN
[   14.157107][  T181] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.157270][  T181] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.157437][  T181] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   14.157903][  T181] RSP: 0018:ffa0000000577a78 EFLAGS: 00010286
[   14.158064][  T181] RAX: 00000000ffffffa6 RBX: ff1100000c1c38c0 RCX: 1ff40000000aef15
[   14.158261][  T181] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c1c397c
[   14.158454][  T181] RBP: ff1100000f29c000 R08: 1fe2200001838731 R09: ff11000008da8b80
[   14.158651][  T181] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   14.158846][  T181] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f29c000
[   14.159042][  T181] FS:  00007fa0a8e27740(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   14.159269][  T181] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.159432][  T181] CR2: 00000000004090e8 CR3: 0000000010a7b003 CR4: 0000000000771ef0
[   14.159631][  T181] PKRU: 55555554
[   14.159727][  T181] Call Trace:
[   14.159827][  T181]  <TASK>
[   14.159894][  T181]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   14.160023][  T181]  ? notifier_call_chain (kernel/notifier.c:85)
[   14.160152][  T181]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   14.160251][  T181]  register_netdevice (net/core/dev.c:11488)
[   14.160385][  T181]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   14.160546][  T181]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.160682][  T181]  register_netdev (net/core/dev.c:11552)
[   14.160817][  T181]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   14.160949][  T181]  ops_init (net/core/net_namespace.c:137)
[   14.161048][  T181]  setup_net (net/core/net_namespace.c:446)
[   14.161146][  T181]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   14.161276][  T181]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   14.161405][  T181]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   14.161538][  T181]  copy_net_ns (net/core/net_namespace.c:579)
[   14.161675][  T181]  create_new_namespaces (kernel/nsproxy.c:132)
[   14.161812][  T181]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   14.161943][  T181]  ksys_unshare (kernel/fork.c:3243)
[   14.162072][  T181]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   14.162202][  T181]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   14.162332][  T181]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.162462][  T181]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   14.162598][  T181]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.162728][  T181]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   14.162862][  T181]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   14.162990][  T181]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   14.163119][  T181]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   14.163249][  T181]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   14.163378][  T181]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.163538][  T181] RIP: 0033:0x7fa0a8f22bcb
[   14.163678][  T181] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   14.164145][  T181] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   14.164340][  T181] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   14.164535][  T181] RDX: 00000000004063a0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   14.164738][  T181] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   14.164932][  T181] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   14.165125][  T181] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   14.172295][   T12] ------------[ cut here ]------------
| [   14.172426][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   14.172667][   T12] Modules linked in:
| [   14.173031][   T12] Tainted: [W]=WARN
[   14.173119][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.173266][   T12] Workqueue: netns cleanup_net
[   14.173389][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.173545][   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
[   14.174124][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   14.174272][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c1c2040 RCX: 1ff4000000018eed
[   14.174447][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c1c20fc
[   14.174635][   T12] RBP: ff1100000f29c000 R08: 1fe2200001838421 R09: ff11000001aed1d0
[   14.174859][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   14.175035][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   14.175229][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   14.175445][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.175603][   T12] CR2: 00007fa0a8e2da00 CR3: 0000000044d4d004 CR4: 0000000000771ef0
[   14.175837][   T12] PKRU: 55555554
[   14.175925][   T12] Call Trace:
[   14.176022][   T12]  <TASK>
[   14.176083][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   14.176286][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   14.176435][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   14.176560][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   14.176692][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   14.176854][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   14.176972][   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)
[   14.177105][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   14.177225][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   14.177348][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.177478][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   14.177600][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   14.177716][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   14.177892][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   14.178022][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.178156][   T12]  process_one_work (kernel/workqueue.c:3314)
[   14.178278][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   14.178395][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   14.178521][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   14.178645][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   14.178822][   T12]  kthread (kernel/kthread.c:436)
[   14.178911][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   14.179056][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   14.179174][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   14.179302][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   14.179461][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   14.179590][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   14.179707][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   14.182631][   T12] ------------[ cut here ]------------
| [   14.183379][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   14.183631][   T12] Modules linked in:
| [   14.184089][   T12] Tainted: [W]=WARN
[   14.184179][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.184326][   T12] Workqueue: netns cleanup_net
[   14.184461][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.184617][   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
[   14.185166][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   14.185334][   T12] RAX: 00000000ffffffa6 RBX: ff11000002859e00 RCX: 1ff4000000018eed
[   14.185533][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000002859ebc
[   14.185712][   T12] RBP: ff11000008e4c000 R08: 1fe220000050b3d9 R09: ff11000001aed1d0
[   14.185955][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   14.186146][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   14.186324][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   14.186527][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.186681][   T12] CR2: 00007fa0a8e2da00 CR3: 0000000044d4d004 CR4: 0000000000771ef0
[   14.186899][   T12] PKRU: 55555554
[   14.186986][   T12] Call Trace:
[   14.187073][   T12]  <TASK>
[   14.187134][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   14.187288][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   14.187432][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   14.187551][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   14.187677][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   14.187800][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   14.187919][   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)
[   14.188038][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   14.188158][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   14.188276][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.188396][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   14.188515][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   14.188637][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   14.188760][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   14.188877][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.188995][   T12]  process_one_work (kernel/workqueue.c:3314)
[   14.189117][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   14.189234][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   14.189357][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   14.189484][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   14.189604][   T12]  kthread (kernel/kthread.c:436)
[   14.189692][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   14.189846][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   14.189964][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   14.190082][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   14.190233][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   14.190353][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   14.190470][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   14.192642][   T12] ------------[ cut here ]------------
| [   14.193528][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   14.193852][   T12] Modules linked in:
| [   14.194205][   T12] Tainted: [W]=WARN
[   14.194293][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.194441][   T12] Workqueue: netns cleanup_net
[   14.194564][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.194720][   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
[   14.195199][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   14.195347][   T12] RAX: 00000000ffffffa6 RBX: ff1100000ba0f000 RCX: 1ff4000000018eed
[   14.195521][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ba0f0bc
[   14.195701][   T12] RBP: ff1100000ff19000 R08: 1fe2200001741e19 R09: ff11000001aed1d0
[   14.195922][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   14.196098][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   14.196274][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   14.196480][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.196631][   T12] CR2: 00007fa0a8e2da00 CR3: 0000000044d4d004 CR4: 0000000000771ef0
[   14.196896][   T12] PKRU: 55555554
[   14.196985][   T12] Call Trace:
[   14.197071][   T12]  <TASK>
[   14.197133][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   14.197282][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   14.197428][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   14.197547][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   14.197669][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   14.197861][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   14.198060][   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)
[   14.198178][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   14.198296][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   14.198411][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.198531][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   14.198651][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   14.198817][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   14.198936][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   14.199058][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.199176][   T12]  process_one_work (kernel/workqueue.c:3314)
[   14.199297][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   14.199414][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   14.199536][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   14.199659][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   14.199825][   T12]  kthread (kernel/kthread.c:436)
[   14.199914][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   14.200059][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   14.200175][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   14.200294][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   14.200441][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   14.200559][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   14.200682][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   14.211118][   T12] ------------[ cut here ]------------
| [   14.211248][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   14.211475][   T12] Modules linked in:
| [   14.211839][   T12] Tainted: [W]=WARN
[   14.211928][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.212076][   T12] Workqueue: netns cleanup_net
[   14.212198][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.212352][   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
[   14.212781][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   14.212930][   T12] RAX: 00000000ffffffa6 RBX: ff1100000ba0f380 RCX: 1ff4000000018eed
[   14.213103][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ba0f43c
[   14.213277][   T12] RBP: ff1100000ff69000 R08: 1fe2200001741e89 R09: ff11000001aed1d0
[   14.213451][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   14.213630][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   14.213806][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   14.214009][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.214154][   T12] CR2: 00007fa0a8e2da00 CR3: 0000000044d4d004 CR4: 0000000000771ef0
[   14.214328][   T12] PKRU: 55555554
[   14.214415][   T12] Call Trace:
[   14.214501][   T12]  <TASK>
[   14.214563][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   14.214716][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   14.214866][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   14.214987][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   14.215105][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   14.215221][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   14.215340][   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)
[   14.215458][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   14.215575][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   14.215694][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.215819][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   14.215937][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   14.216053][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   14.216171][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   14.216287][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.216404][   T12]  process_one_work (kernel/workqueue.c:3314)
[   14.216528][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   14.216649][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   14.216781][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   14.216903][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   14.217023][   T12]  kthread (kernel/kthread.c:436)
[   14.217112][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   14.217261][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   14.217379][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   14.217496][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   14.217645][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   14.217767][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   14.217883][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   14.219816][   T12] ------------[ cut here ]------------
| [   14.219929][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   14.220156][   T12] Modules linked in:
| [   14.220504][   T12] Tainted: [W]=WARN
[   14.220602][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.220755][   T12] Workqueue: netns cleanup_net
[   14.220876][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.221028][   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
[   14.221441][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   14.221595][   T12] RAX: 00000000ffffffa6 RBX: ff1100000ba0f700 RCX: 1ff4000000018eed
[   14.221775][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ba0f7bc
[   14.221947][   T12] RBP: ff1100000ffb1000 R08: 1fe2200001741ef9 R09: ff11000001aed1d0
[   14.222121][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   14.222299][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   14.222478][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   14.222684][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.222832][   T12] CR2: 00007fa0a8e2da00 CR3: 0000000044d4d004 CR4: 0000000000771ef0
[   14.223010][   T12] PKRU: 55555554
[   14.223099][   T12] Call Trace:
[   14.223186][   T12]  <TASK>
[   14.223246][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   14.223405][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   14.223547][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   14.223669][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   14.223792][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   14.223909][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   14.224025][   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)
[   14.224141][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   14.224259][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   14.224375][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.224495][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   14.224616][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   14.224737][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   14.224855][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   14.224972][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.225091][   T12]  process_one_work (kernel/workqueue.c:3314)
[   14.225214][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   14.225329][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   14.225452][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   14.225571][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   14.225692][   T12]  kthread (kernel/kthread.c:436)
[   14.225784][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   14.225929][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   14.226047][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   14.226166][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   14.226313][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   14.226430][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   14.226547][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   14.234563][  T183] ------------[ cut here ]------------
| [   14.234715][  T183] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/183
| [   14.234982][  T183] Modules linked in:
| [   14.235382][  T183] Tainted: [W]=WARN
[   14.235481][  T183] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.235649][  T183] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.235831][  T183] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   14.236298][  T183] RSP: 0018:ffa00000005d7a80 EFLAGS: 00010286
[   14.236463][  T183] RAX: 00000000ffffffa6 RBX: ff1100000d288200 RCX: 1ff40000000baf16
[   14.236663][  T183] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d2882bc
[   14.236863][  T183] RBP: ff1100001033c000 R08: 1fe2200001a51059 R09: ff1100000f2f2e80
[   14.237060][  T183] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   14.237253][  T183] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100001033c000
[   14.237451][  T183] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   14.237688][  T183] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.237859][  T183] CR2: 00007fa0a8f22bc0 CR3: 0000000010255004 CR4: 0000000000771ef0
[   14.238056][  T183] PKRU: 55555554
[   14.238153][  T183] Call Trace:
[   14.238249][  T183]  <TASK>
[   14.238316][  T183]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   14.238448][  T183]  ? notifier_call_chain (kernel/notifier.c:85)
[   14.238584][  T183]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   14.238685][  T183]  register_netdevice (net/core/dev.c:11488)
[   14.238824][  T183]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   14.238988][  T183]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   14.239121][  T183]  register_netdev (net/core/dev.c:11552)
[   14.239252][  T183]  loopback_net_init (drivers/net/loopback.c:218)
[   14.239383][  T183]  ops_init (net/core/net_namespace.c:137)
[   14.239483][  T183]  setup_net (net/core/net_namespace.c:446)
[   14.239586][  T183]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   14.239718][  T183]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   14.239856][  T183]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   14.239989][  T183]  copy_net_ns (net/core/net_namespace.c:579)
[   14.240121][  T183]  create_new_namespaces (kernel/nsproxy.c:132)
[   14.240254][  T183]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   14.240385][  T183]  ksys_unshare (kernel/fork.c:3243)
[   14.240516][  T183]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   14.240653][  T183]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   14.240788][  T183]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.240920][  T183]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   14.241051][  T183]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.241183][  T183]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   14.241313][  T183]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   14.241442][  T183]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   14.241572][  T183]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   14.241705][  T183]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   14.241840][  T183]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.242002][  T183] RIP: 0033:0x7fa0a8f22bcb
[   14.242137][  T183] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   14.242607][  T183] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   14.242807][  T183] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   14.243002][  T183] RDX: 00000000004063e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   14.243196][  T183] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   14.243392][  T183] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   14.243589][  T183] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   14.247731][  T183] ------------[ cut here ]------------
| [   14.247872][  T183] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/183
| [   14.248130][  T183] Modules linked in:
| [   14.248522][  T183] Tainted: [W]=WARN
[   14.248625][  T183] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.248793][  T183] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.248959][  T183] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   14.249414][  T183] RSP: 0018:ffa00000005d7918 EFLAGS: 00010286
[   14.249588][  T183] RAX: 00000000ffffffa6 RBX: ff1100000bb34c80 RCX: 1ff40000000baee9
[   14.249782][  T183] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bb34d3c
[   14.249974][  T183] RBP: ff1100000cf89000 R08: 1fe22000017669a9 R09: ff1100000f2f2e80
[   14.250166][  T183] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   14.250357][  T183] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000cf89000
[   14.250555][  T183] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   14.250791][  T183] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.250952][  T183] CR2: 00007fa0a8f22bc0 CR3: 0000000010255004 CR4: 0000000000771ef0
[   14.251146][  T183] PKRU: 55555554
[   14.251241][  T183] Call Trace:
[   14.251341][  T183]  <TASK>
[   14.251407][  T183]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   14.251536][  T183]  ? notifier_call_chain (kernel/notifier.c:85)
[   14.251669][  T183]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   14.251773][  T183]  register_netdevice (net/core/dev.c:11488)
[   14.251904][  T183]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   14.252064][  T183]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   14.252198][  T183]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   14.252327][  T183]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   14.252455][  T183]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   14.252589][  T183]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   14.252718][  T183]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   14.252854][  T183]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   14.252984][  T183]  ops_init (net/core/net_namespace.c:137)
[   14.253082][  T183]  setup_net (net/core/net_namespace.c:446)
[   14.253298][  T183]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   14.253426][  T183]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   14.253557][  T183]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   14.253690][  T183]  copy_net_ns (net/core/net_namespace.c:579)
[   14.253826][  T183]  create_new_namespaces (kernel/nsproxy.c:132)
[   14.253957][  T183]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   14.254086][  T183]  ksys_unshare (kernel/fork.c:3243)
[   14.254218][  T183]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   14.254348][  T183]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   14.254478][  T183]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.254609][  T183]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   14.254744][  T183]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.254874][  T183]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   14.255003][  T183]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   14.255134][  T183]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   14.255267][  T183]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   14.255396][  T183]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   14.255526][  T183]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.255688][  T183] RIP: 0033:0x7fa0a8f22bcb
[   14.255827][  T183] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   14.256285][  T183] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   14.256479][  T183] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   14.256675][  T183] RDX: 00000000004063e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   14.256870][  T183] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   14.257064][  T183] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   14.257257][  T183] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   14.261106][  T183] ------------[ cut here ]------------
| [   14.261243][  T183] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/183
| [   14.261501][  T183] Modules linked in:
| [   14.261906][  T183] Tainted: [W]=WARN
[   14.262008][  T183] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.262170][  T183] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.262338][  T183] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   14.262813][  T183] RSP: 0018:ffa00000005d78f8 EFLAGS: 00010286
[   14.262981][  T183] RAX: 00000000ffffffa6 RBX: ff1100000d289c40 RCX: 1ff40000000baee5
[   14.263175][  T183] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d289cfc
[   14.263372][  T183] RBP: ff1100000c4f9000 R08: 1fe2200001a513a1 R09: ff1100000f2f2e80
[   14.263566][  T183] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   14.263772][  T183] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000c4f9000
[   14.263969][  T183] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   14.264198][  T183] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.264362][  T183] CR2: 00007fa0a8f22bc0 CR3: 0000000010255004 CR4: 0000000000771ef0
[   14.264562][  T183] PKRU: 55555554
[   14.264665][  T183] Call Trace:
[   14.264768][  T183]  <TASK>
[   14.264835][  T183]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   14.264965][  T183]  ? notifier_call_chain (kernel/notifier.c:85)
[   14.265095][  T183]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   14.265195][  T183]  register_netdevice (net/core/dev.c:11488)
[   14.265329][  T183]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   14.265492][  T183]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   14.265627][  T183]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   14.265763][  T183]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   14.265895][  T183]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   14.266027][  T183]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   14.266159][  T183]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   14.266293][  T183]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   14.266425][  T183]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   14.266560][  T183]  vti_init_net (net/ipv4/ip_vti.c:517)
[   14.266693][  T183]  ops_init (net/core/net_namespace.c:137)
[   14.266798][  T183]  setup_net (net/core/net_namespace.c:446)
[   14.266897][  T183]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   14.267027][  T183]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   14.267159][  T183]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   14.267291][  T183]  copy_net_ns (net/core/net_namespace.c:579)
[   14.267513][  T183]  create_new_namespaces (kernel/nsproxy.c:132)
[   14.267650][  T183]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   14.267787][  T183]  ksys_unshare (kernel/fork.c:3243)
[   14.267918][  T183]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   14.268134][  T183]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   14.268264][  T183]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.268395][  T183]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   14.268535][  T183]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.268761][  T183]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   14.268891][  T183]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   14.269020][  T183]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   14.269149][  T183]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   14.269365][  T183]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   14.269495][  T183]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.269660][  T183] RIP: 0033:0x7fa0a8f22bcb
[   14.269802][  T183] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   14.270260][  T183] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   14.270544][  T183] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   14.270746][  T183] RDX: 00000000004063e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   14.271028][  T183] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   14.271223][  T183] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   14.271417][  T183] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   14.280411][   T12] ------------[ cut here ]------------
| [   14.280614][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   14.280858][   T12] Modules linked in:
| [   14.281290][   T12] Tainted: [W]=WARN
[   14.281379][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.281530][   T12] Workqueue: netns cleanup_net
[   14.281731][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.281890][   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
[   14.282383][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   14.282532][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c63e200 RCX: 1ff4000000018ed5
[   14.282791][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c63e2bc
[   14.282968][   T12] RBP: ff1100000fd49000 R08: 1fe22000018c7c59 R09: ff11000001aed1d0
[   14.283146][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   14.283395][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   14.283572][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   14.283785][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.283933][   T12] CR2: 00007fa0a8e2da00 CR3: 0000000044d4d004 CR4: 0000000000771ef0
[   14.284109][   T12] PKRU: 55555554
[   14.284199][   T12] Call Trace:
[   14.284359][   T12]  <TASK>
[   14.284421][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   14.284575][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   14.284728][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   14.284926][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   14.285046][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   14.285166][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   14.285285][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   14.285478][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   14.285599][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   14.285714][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.285836][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   14.286025][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   14.286140][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   14.286260][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   14.286375][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.286570][   T12]  process_one_work (kernel/workqueue.c:3314)
[   14.286694][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   14.286816][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   14.286937][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   14.287130][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   14.287248][   T12]  kthread (kernel/kthread.c:436)
[   14.287342][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   14.287493][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   14.287688][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   14.287811][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   14.287958][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   14.288075][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   14.288268][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   14.295236][  T183] ------------[ cut here ]------------
| [   14.295370][  T183] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/183
| [   14.295630][  T183] Modules linked in:
| [   14.296027][  T183] Tainted: [W]=WARN
[   14.296124][  T183] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.296285][  T183] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.296454][  T183] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   14.296967][  T183] RSP: 0018:ffa00000005d7a78 EFLAGS: 00010286
[   14.297128][  T183] RAX: 00000000ffffffa6 RBX: ff1100000d288e40 RCX: 1ff40000000baf15
[   14.297323][  T183] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d288efc
[   14.297515][  T183] RBP: ff1100000f019000 R08: 1fe2200001a511e1 R09: ff1100000f2f2e80
[   14.297712][  T183] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   14.297907][  T183] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f019000
[   14.298103][  T183] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   14.298328][  T183] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.298489][  T183] CR2: 00007fa0a8f22bc0 CR3: 0000000010255004 CR4: 0000000000771ef0
[   14.298687][  T183] PKRU: 55555554
[   14.298787][  T183] Call Trace:
[   14.298882][  T183]  <TASK>
[   14.298949][  T183]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   14.299080][  T183]  ? notifier_call_chain (kernel/notifier.c:85)
[   14.299208][  T183]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   14.299305][  T183]  register_netdevice (net/core/dev.c:11488)
[   14.299435][  T183]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   14.299597][  T183]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.299728][  T183]  register_netdev (net/core/dev.c:11552)
[   14.299861][  T183]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   14.299992][  T183]  ops_init (net/core/net_namespace.c:137)
[   14.300090][  T183]  setup_net (net/core/net_namespace.c:446)
[   14.300187][  T183]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   14.300314][  T183]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   14.300441][  T183]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   14.300570][  T183]  copy_net_ns (net/core/net_namespace.c:579)
[   14.300704][  T183]  create_new_namespaces (kernel/nsproxy.c:132)
[   14.300839][  T183]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   14.300967][  T183]  ksys_unshare (kernel/fork.c:3243)
[   14.301094][  T183]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   14.301222][  T183]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   14.301348][  T183]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.301475][  T183]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   14.301608][  T183]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.301744][  T183]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   14.301871][  T183]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   14.301998][  T183]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   14.302125][  T183]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   14.302253][  T183]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   14.302381][  T183]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.302539][  T183] RIP: 0033:0x7fa0a8f22bcb
[   14.302675][  T183] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   14.303132][  T183] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   14.303324][  T183] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   14.303514][  T183] RDX: 00000000004063e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   14.303711][  T183] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   14.303903][  T183] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   14.304094][  T183] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   14.308116][  T183] ------------[ cut here ]------------
| [   14.308251][  T183] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/183
| [   14.308505][  T183] Modules linked in:
| [   14.308903][  T183] Tainted: [W]=WARN
[   14.308999][  T183] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.309160][  T183] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.309324][  T183] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   14.309789][  T183] RSP: 0018:ffa00000005d7a68 EFLAGS: 00010286
[   14.309951][  T183] RAX: 00000000ffffffa6 RBX: ff1100000c63e580 RCX: 1ff40000000baf13
[   14.310143][  T183] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c63e63c
[   14.310333][  T183] RBP: ff1100000f024000 R08: 1fe22000018c7cc9 R09: ff1100000f2f2e80
[   14.310524][  T183] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   14.310717][  T183] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f024000
[   14.310914][  T183] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   14.311138][  T183] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.311300][  T183] CR2: 00007fa0a8f22bc0 CR3: 0000000010255004 CR4: 0000000000771ef0
[   14.311492][  T183] PKRU: 55555554
[   14.311593][  T183] Call Trace:
[   14.311687][  T183]  <TASK>
[   14.311757][  T183]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   14.311886][  T183]  ? notifier_call_chain (kernel/notifier.c:85)
[   14.312013][  T183]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   14.312113][  T183]  register_netdevice (net/core/dev.c:11488)
[   14.312242][  T183]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   14.312405][  T183]  register_netdev (net/core/dev.c:11552)
[   14.312533][  T183]  sit_init_net (net/ipv6/sit.c:1860)
[   14.312665][  T183]  ops_init (net/core/net_namespace.c:137)
[   14.312768][  T183]  setup_net (net/core/net_namespace.c:446)
[   14.312864][  T183]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   14.312991][  T183]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   14.313118][  T183]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   14.313249][  T183]  copy_net_ns (net/core/net_namespace.c:579)
[   14.313379][  T183]  create_new_namespaces (kernel/nsproxy.c:132)
[   14.313509][  T183]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   14.313641][  T183]  ksys_unshare (kernel/fork.c:3243)
[   14.313772][  T183]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   14.313902][  T183]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   14.314029][  T183]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.314156][  T183]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   14.314284][  T183]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.314413][  T183]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   14.314540][  T183]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   14.314672][  T183]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   14.314804][  T183]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   14.314932][  T183]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   14.315058][  T183]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.315215][  T183] RIP: 0033:0x7fa0a8f22bcb
[   14.315347][  T183] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   14.315808][  T183] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   14.316000][  T183] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   14.316190][  T183] RDX: 00000000004063e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   14.316380][  T183] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   14.316571][  T183] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   14.316770][  T183] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   14.321371][  T183] ------------[ cut here ]------------
| [   14.321501][  T183] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/183
| [   14.321762][  T183] Modules linked in:
| [   14.322148][  T183] Tainted: [W]=WARN
[   14.322245][  T183] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.322405][  T183] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.322571][  T183] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   14.323031][  T183] RSP: 0018:ffa00000005d7a78 EFLAGS: 00010286
[   14.323191][  T183] RAX: 00000000ffffffa6 RBX: ff1100000b616ac0 RCX: 1ff40000000baf15
[   14.323383][  T183] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b616b7c
[   14.323574][  T183] RBP: ff11000010b99000 R08: 1fe22000016c2d71 R09: ff1100000f2f2e80
[   14.323777][  T183] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   14.323966][  T183] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000010b99000
[   14.324159][  T183] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   14.324386][  T183] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.324547][  T183] CR2: 00007fa0a8f22bc0 CR3: 0000000010255004 CR4: 0000000000771ef0
[   14.324746][  T183] PKRU: 55555554
[   14.324842][  T183] Call Trace:
[   14.324937][  T183]  <TASK>
[   14.325005][  T183]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   14.325133][  T183]  ? notifier_call_chain (kernel/notifier.c:85)
[   14.325261][  T183]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   14.325359][  T183]  register_netdevice (net/core/dev.c:11488)
[   14.325489][  T183]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   14.325651][  T183]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.325785][  T183]  register_netdev (net/core/dev.c:11552)
[   14.325915][  T183]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   14.326044][  T183]  ops_init (net/core/net_namespace.c:137)
[   14.326142][  T183]  setup_net (net/core/net_namespace.c:446)
[   14.326239][  T183]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   14.326450][  T183]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   14.326577][  T183]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   14.326709][  T183]  copy_net_ns (net/core/net_namespace.c:579)
[   14.326844][  T183]  create_new_namespaces (kernel/nsproxy.c:132)
[   14.327057][  T183]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   14.327185][  T183]  ksys_unshare (kernel/fork.c:3243)
[   14.327310][  T183]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   14.327437][  T183]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   14.327649][  T183]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.327779][  T183]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   14.327908][  T183]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   14.328035][  T183]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   14.328245][  T183]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   14.328371][  T183]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   14.328498][  T183]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   14.328627][  T183]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   14.328842][  T183]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.329001][  T183] RIP: 0033:0x7fa0a8f22bcb
[   14.329135][  T183] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   14.329681][  T183] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   14.329960][  T183] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   14.330152][  T183] RDX: 00000000004063e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   14.330342][  T183] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   14.330622][  T183] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   14.330816][  T183] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   15.343201][   T12] ------------[ cut here ]------------
| [   15.343371][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   15.343622][   T12] Modules linked in:
| [   15.344007][   T12] Tainted: [W]=WARN
[   15.344098][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.344251][   T12] Workqueue: netns cleanup_net
[   15.344378][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.344536][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.344995][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   15.345148][   T12] RAX: 00000000ffffffa6 RBX: ff1100000e4aec80 RCX: 1ff4000000018eed
[   15.345324][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e4aed3c
[   15.345499][   T12] RBP: ff11000010b99000 R08: 1fe2200001c95da9 R09: ff11000001aed1d0
[   15.345678][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   15.345863][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   15.346038][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   15.346241][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.346389][   T12] CR2: 00007fa0a8e2da00 CR3: 0000000044d4d004 CR4: 0000000000771ef0
[   15.346564][   T12] PKRU: 55555554
[   15.346660][   T12] Call Trace:
[   15.346754][   T12]  <TASK>
[   15.346816][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   15.346968][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   15.347119][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   15.347237][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   15.347357][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   15.347473][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   15.347595][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   15.347712][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   15.347835][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   15.347949][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.348068][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   15.348185][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   15.348300][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   15.348418][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.348537][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.348664][   T12]  process_one_work (kernel/workqueue.c:3314)
[   15.348789][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   15.348906][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.349026][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   15.349151][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   15.349267][   T12]  kthread (kernel/kthread.c:436)
[   15.349354][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   15.349499][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.349619][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   15.349746][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   15.349891][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   15.350009][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.350126][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   15.352357][   T12] ------------[ cut here ]------------
| [   15.352477][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   15.352710][   T12] Modules linked in:
| [   15.353072][   T12] Tainted: [W]=WARN
[   15.353161][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.353316][   T12] Workqueue: netns cleanup_net
[   15.353438][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.353599][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.354031][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   15.354179][   T12] RAX: 00000000ffffffa6 RBX: ff1100000e4af380 RCX: 1ff4000000018eed
[   15.354354][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e4af43c
[   15.354530][   T12] RBP: ff1100000f024000 R08: 1fe2200001c95e89 R09: ff11000001aed1d0
[   15.354707][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   15.354959][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   15.355148][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   15.355351][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.355495][   T12] CR2: 00007fa0a8e2da00 CR3: 0000000044d4d004 CR4: 0000000000771ef0
[   15.355672][   T12] PKRU: 55555554
[   15.355847][   T12] Call Trace:
[   15.355937][   T12]  <TASK>
[   15.355997][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   15.356147][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   15.356290][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   15.356406][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   15.356524][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   15.356643][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   15.356809][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   15.356927][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   15.357089][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   15.357202][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.357319][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   15.357435][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   15.357555][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   15.357674][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.357838][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.357955][   T12]  process_one_work (kernel/workqueue.c:3314)
[   15.358076][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   15.358193][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.358314][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   15.358433][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   15.358549][   T12]  kthread (kernel/kthread.c:436)
[   15.358641][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   15.358833][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.358949][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   15.359065][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   15.359210][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   15.359326][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.359442][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   15.383129][   T12] ------------[ cut here ]------------
| [   15.383306][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   15.383584][   T12] Modules linked in:
| [   15.384056][   T12] Tainted: [W]=WARN
[   15.384190][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.384382][   T12] Workqueue: netns cleanup_net
[   15.384550][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.384767][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.385224][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   15.385415][   T12] RAX: 00000000ffffffa6 RBX: ff110000097f38c0 RCX: 1ff4000000018eed
[   15.385637][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000097f397c
[   15.385868][   T12] RBP: ff1100000f019000 R08: 1fe22000012fe731 R09: ff11000001aed1d0
[   15.386088][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   15.386304][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   15.386526][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   15.386796][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.386986][   T12] CR2: 00000000004090e8 CR3: 00000000108d9001 CR4: 0000000000771ef0
[   15.387205][   T12] PKRU: 55555554
[   15.387339][   T12] Call Trace:
[   15.387471][   T12]  <TASK>
[   15.387577][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   15.387789][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   15.387981][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   15.388144][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   15.388307][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   15.388468][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   15.388637][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   15.388813][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   15.388980][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   15.389140][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.389308][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   15.389472][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   15.389638][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   15.389811][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.389973][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.390137][   T12]  process_one_work (kernel/workqueue.c:3314)
[   15.390303][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   15.390466][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.390643][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   15.390824][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   15.390985][   T12]  kthread (kernel/kthread.c:436)
[   15.391118][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   15.391309][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.391472][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   15.391644][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   15.391849][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   15.392010][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.392170][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   15.394504][   T12] ------------[ cut here ]------------
| [   15.394668][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   15.394949][   T12] Modules linked in:
| [   15.395386][   T12] Tainted: [W]=WARN
[   15.395523][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.395715][   T12] Workqueue: netns cleanup_net
[   15.395895][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.396090][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.396549][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   15.396759][   T12] RAX: 00000000ffffffa6 RBX: ff110000097f3540 RCX: 1ff4000000018eed
[   15.396974][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000097f35fc
[   15.397190][   T12] RBP: ff1100000c4f9000 R08: 1fe22000012fe6c1 R09: ff11000001aed1d0
[   15.397405][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   15.397630][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   15.397863][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   15.398108][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.398296][   T12] CR2: 00000000004090e8 CR3: 00000000108d9001 CR4: 0000000000771ef0
[   15.398518][   T12] PKRU: 55555554
[   15.398657][   T12] Call Trace:
[   15.398804][   T12]  <TASK>
[   15.398911][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   15.399107][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   15.399294][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   15.399456][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   15.399626][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   15.399804][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   15.399967][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   15.400132][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   15.400296][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   15.400455][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.400625][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   15.400802][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   15.400964][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   15.401130][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.401290][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.401454][   T12]  process_one_work (kernel/workqueue.c:3314)
[   15.401626][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   15.401801][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.401967][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   15.402132][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   15.402297][   T12]  kthread (kernel/kthread.c:436)
[   15.402430][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   15.402628][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.402805][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   15.402970][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   15.403160][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   15.403321][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.403486][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   15.405828][   T12] ------------[ cut here ]------------
| [   15.405986][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   15.406261][   T12] Modules linked in:
| [   15.406707][   T12] Tainted: [W]=WARN
[   15.406850][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.407039][   T12] Workqueue: netns cleanup_net
[   15.407207][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.407404][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.407871][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   15.408062][   T12] RAX: 00000000ffffffa6 RBX: ff110000097f31c0 RCX: 1ff4000000018eed
[   15.408283][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000097f327c
[   15.408500][   T12] RBP: ff1100000cf89000 R08: 1fe22000012fe651 R09: ff11000001aed1d0
[   15.408723][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   15.408952][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   15.409175][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   15.409423][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.409620][   T12] CR2: 00000000004090e8 CR3: 00000000108d9001 CR4: 0000000000771ef0
[   15.409852][   T12] PKRU: 55555554
[   15.409983][   T12] Call Trace:
[   15.410113][   T12]  <TASK>
[   15.410221][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   15.410418][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   15.410611][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   15.410783][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   15.410948][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   15.411109][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   15.411270][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   15.411438][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   15.411608][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   15.411781][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.411945][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   15.412107][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   15.412267][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   15.412430][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.412597][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.412777][   T12]  process_one_work (kernel/workqueue.c:3314)
[   15.412943][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   15.413104][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.413269][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   15.413435][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   15.413601][   T12]  kthread (kernel/kthread.c:436)
[   15.413748][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   15.413940][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.414102][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   15.414266][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   15.414455][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   15.414624][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.414801][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   15.423293][  T185] ------------[ cut here ]------------
| [   15.423438][  T185] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/185
| [   15.423702][  T185] Modules linked in:
| [   15.424109][  T185] Tainted: [W]=WARN
[   15.424207][  T185] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.424368][  T185] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.424536][  T185] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.425004][  T185] RSP: 0018:ffa0000000887a80 EFLAGS: 00010286
[   15.425167][  T185] RAX: 00000000ffffffa6 RBX: ff1100000c63f540 RCX: 1ff4000000110f16
[   15.425359][  T185] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c63f5fc
[   15.425552][  T185] RBP: ff1100000fdec000 R08: 1fe22000018c7ec1 R09: ff1100000c1ad180
[   15.425759][  T185] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   15.425952][  T185] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fdec000
[   15.426147][  T185] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   15.426373][  T185] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.426537][  T185] CR2: 00007fa0a8f22bc0 CR3: 0000000010255005 CR4: 0000000000771ef0
[   15.426742][  T185] PKRU: 55555554
[   15.426840][  T185] Call Trace:
[   15.426937][  T185]  <TASK>
[   15.427004][  T185]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.427133][  T185]  ? notifier_call_chain (kernel/notifier.c:85)
[   15.427265][  T185]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.427364][  T185]  register_netdevice (net/core/dev.c:11488)
[   15.427497][  T185]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   15.427663][  T185]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   15.427800][  T185]  register_netdev (net/core/dev.c:11552)
[   15.427931][  T185]  loopback_net_init (drivers/net/loopback.c:218)
[   15.428063][  T185]  ops_init (net/core/net_namespace.c:137)
[   15.428162][  T185]  setup_net (net/core/net_namespace.c:446)
[   15.428262][  T185]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   15.428391][  T185]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   15.428523][  T185]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   15.428657][  T185]  copy_net_ns (net/core/net_namespace.c:579)
[   15.428794][  T185]  create_new_namespaces (kernel/nsproxy.c:132)
[   15.428928][  T185]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   15.429061][  T185]  ksys_unshare (kernel/fork.c:3243)
[   15.429192][  T185]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   15.429322][  T185]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   15.429451][  T185]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.429581][  T185]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   15.429717][  T185]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.429852][  T185]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   15.429980][  T185]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   15.430108][  T185]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.430238][  T185]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.430367][  T185]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.430496][  T185]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.430662][  T185] RIP: 0033:0x7fa0a8f22bcb
[   15.430804][  T185] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   15.431279][  T185] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   15.431476][  T185] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   15.431672][  T185] RDX: 00000000004063e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   15.431870][  T185] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   15.432068][  T185] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   15.432261][  T185] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   15.436225][  T185] ------------[ cut here ]------------
| [   15.436358][  T185] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/185
| [   15.436621][  T185] Modules linked in:
| [   15.437017][  T185] Tainted: [W]=WARN
[   15.437119][  T185] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.437280][  T185] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.437446][  T185] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.437916][  T185] RSP: 0018:ffa0000000887918 EFLAGS: 00010286
[   15.438082][  T185] RAX: 00000000ffffffa6 RBX: ff1100000e4af540 RCX: 1ff4000000110ee9
[   15.438275][  T185] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e4af5fc
[   15.438465][  T185] RBP: ff11000011c99000 R08: 1fe2200001c95ec1 R09: ff1100000c1ad180
[   15.438661][  T185] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   15.438861][  T185] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000011c99000
[   15.439052][  T185] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   15.439277][  T185] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.439438][  T185] CR2: 00007fa0a8f22bc0 CR3: 0000000010255005 CR4: 0000000000771ef0
[   15.439634][  T185] PKRU: 55555554
[   15.439738][  T185] Call Trace:
[   15.439834][  T185]  <TASK>
[   15.439900][  T185]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.440031][  T185]  ? notifier_call_chain (kernel/notifier.c:85)
[   15.440161][  T185]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.440261][  T185]  register_netdevice (net/core/dev.c:11488)
[   15.440390][  T185]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   15.440550][  T185]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   15.440688][  T185]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   15.440823][  T185]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   15.440952][  T185]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   15.441084][  T185]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   15.441214][  T185]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   15.441345][  T185]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   15.441476][  T185]  ops_init (net/core/net_namespace.c:137)
[   15.441579][  T185]  setup_net (net/core/net_namespace.c:446)
[   15.441682][  T185]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   15.441813][  T185]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   15.441943][  T185]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   15.442075][  T185]  copy_net_ns (net/core/net_namespace.c:579)
[   15.442206][  T185]  create_new_namespaces (kernel/nsproxy.c:132)
[   15.442337][  T185]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   15.442471][  T185]  ksys_unshare (kernel/fork.c:3243)
[   15.442604][  T185]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   15.442739][  T185]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   15.442868][  T185]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.442998][  T185]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   15.443129][  T185]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.443260][  T185]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   15.443388][  T185]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   15.443521][  T185]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.443654][  T185]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.443789][  T185]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.443922][  T185]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.444082][  T185] RIP: 0033:0x7fa0a8f22bcb
[   15.444217][  T185] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   15.444683][  T185] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   15.444883][  T185] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   15.445075][  T185] RDX: 00000000004063e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   15.445270][  T185] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   15.445461][  T185] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   15.445657][  T185] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   15.449885][  T185] ------------[ cut here ]------------
| [   15.450023][  T185] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/185
| [   15.450283][  T185] Modules linked in:
| [   15.450689][  T185] Tainted: [W]=WARN
[   15.450794][  T185] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.450959][  T185] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.451131][  T185] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.451608][  T185] RSP: 0018:ffa00000008878f8 EFLAGS: 00010286
[   15.451779][  T185] RAX: 00000000ffffffa6 RBX: ff1100000e440040 RCX: 1ff4000000110ee5
[   15.451975][  T185] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e4400fc
[   15.452171][  T185] RBP: ff11000011cb1000 R08: 1fe2200001c88021 R09: ff1100000c1ad180
[   15.452366][  T185] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   15.452564][  T185] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000011cb1000
[   15.452768][  T185] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   15.452996][  T185] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.453161][  T185] CR2: 00007fa0a8f22bc0 CR3: 0000000010255005 CR4: 0000000000771ef0
[   15.453362][  T185] PKRU: 55555554
[   15.453460][  T185] Call Trace:
[   15.453558][  T185]  <TASK>
[   15.453631][  T185]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.453771][  T185]  ? notifier_call_chain (kernel/notifier.c:85)
[   15.453902][  T185]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.454092][  T185]  register_netdevice (net/core/dev.c:11488)
[   15.454224][  T185]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   15.454391][  T185]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   15.454524][  T185]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   15.454748][  T185]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   15.454878][  T185]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   15.455010][  T185]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   15.455141][  T185]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   15.455360][  T185]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   15.455497][  T185]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   15.455635][  T185]  vti_init_net (net/ipv4/ip_vti.c:517)
[   15.455774][  T185]  ops_init (net/core/net_namespace.c:137)
[   15.455961][  T185]  setup_net (net/core/net_namespace.c:446)
[   15.456061][  T185]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   15.456191][  T185]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   15.456322][  T185]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   15.456454][  T185]  copy_net_ns (net/core/net_namespace.c:579)
[   15.456595][  T185]  create_new_namespaces (kernel/nsproxy.c:132)
[   15.456730][  T185]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   15.456867][  T185]  ksys_unshare (kernel/fork.c:3243)
[   15.456997][  T185]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   15.457128][  T185]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   15.457258][  T185]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.457389][  T185]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   15.457527][  T185]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.457662][  T185]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   15.457797][  T185]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   15.457928][  T185]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.458058][  T185]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.458189][  T185]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.458320][  T185]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.458482][  T185] RIP: 0033:0x7fa0a8f22bcb
[   15.458721][  T185] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   15.459187][  T185] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   15.459383][  T185] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   15.459582][  T185] RDX: 00000000004063e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   15.459784][  T185] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   15.459981][  T185] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   15.460175][  T185] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   15.464479][  T185] ------------[ cut here ]------------
| [   15.464619][  T185] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/185
| [   15.464884][  T185] Modules linked in:
| [   15.465275][  T185] Tainted: [W]=WARN
[   15.465372][  T185] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.465533][  T185] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.465708][  T185] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.466169][  T185] RSP: 0018:ffa0000000887a78 EFLAGS: 00010286
[   15.466332][  T185] RAX: 00000000ffffffa6 RBX: ff1100000bea11c0 RCX: 1ff4000000110f15
[   15.466528][  T185] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bea127c
[   15.466725][  T185] RBP: ff11000011cc9000 R08: 1fe22000017d4251 R09: ff1100000c1ad180
[   15.466925][  T185] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   15.467117][  T185] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000011cc9000
[   15.467312][  T185] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   15.467543][  T185] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.467708][  T185] CR2: 00007fa0a8f22bc0 CR3: 0000000010255005 CR4: 0000000000771ef0
[   15.467906][  T185] PKRU: 55555554
[   15.468004][  T185] Call Trace:
[   15.468099][  T185]  <TASK>
[   15.468166][  T185]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.468300][  T185]  ? notifier_call_chain (kernel/notifier.c:85)
[   15.468430][  T185]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.468529][  T185]  register_netdevice (net/core/dev.c:11488)
[   15.468664][  T185]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   15.468829][  T185]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.468962][  T185]  register_netdev (net/core/dev.c:11552)
[   15.469091][  T185]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   15.469231][  T185]  ops_init (net/core/net_namespace.c:137)
[   15.469330][  T185]  setup_net (net/core/net_namespace.c:446)
[   15.469428][  T185]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   15.469556][  T185]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   15.469690][  T185]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   15.469829][  T185]  copy_net_ns (net/core/net_namespace.c:579)
[   15.469959][  T185]  create_new_namespaces (kernel/nsproxy.c:132)
[   15.470095][  T185]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   15.470228][  T185]  ksys_unshare (kernel/fork.c:3243)
[   15.470359][  T185]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   15.470489][  T185]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   15.470621][  T185]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.470756][  T185]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   15.470888][  T185]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.471022][  T185]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   15.471152][  T185]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   15.471281][  T185]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.471409][  T185]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.471538][  T185]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.471672][  T185]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.471836][  T185] RIP: 0033:0x7fa0a8f22bcb
[   15.471972][  T185] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   15.472437][  T185] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   15.472636][  T185] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   15.472834][  T185] RDX: 00000000004063e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   15.473030][  T185] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   15.473224][  T185] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   15.473417][  T185] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   15.491254][  T185] ------------[ cut here ]------------
| [   15.491396][  T185] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: scm_rights/185
| [   15.491657][  T185] Modules linked in:
| [   15.492055][  T185] Tainted: [W]=WARN
[   15.492153][  T185] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.492315][  T185] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.492484][  T185] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.492959][  T185] RSP: 0018:ffa0000000887a68 EFLAGS: 00010286
[   15.493123][  T185] RAX: 00000000ffffffa6 RBX: ff1100000e441700 RCX: 1ff4000000110f13
[   15.493317][  T185] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e4417bc
[   15.493511][  T185] RBP: ff11000011cec000 R08: 1fe2200001c882f9 R09: ff1100000c1ad180
[   15.493709][  T185] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   15.493908][  T185] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000011cec000
[   15.494105][  T185] FS:  00007fa0a8e27740(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   15.494332][  T185] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.494497][  T185] CR2: 00007fa0a8e2da00 CR3: 0000000010255004 CR4: 0000000000771ef0
[   15.494695][  T185] PKRU: 55555554
[   15.494796][  T185] Call Trace:
[   15.494892][  T185]  <TASK>
[   15.494958][  T185]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.495087][  T185]  ? notifier_call_chain (kernel/notifier.c:85)
[   15.495217][  T185]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.495316][  T185]  register_netdevice (net/core/dev.c:11488)
[   15.495448][  T185]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   15.495618][  T185]  register_netdev (net/core/dev.c:11552)
[   15.495750][  T185]  sit_init_net (net/ipv6/sit.c:1860)
[   15.495883][  T185]  ops_init (net/core/net_namespace.c:137)
[   15.495982][  T185]  setup_net (net/core/net_namespace.c:446)
[   15.496080][  T185]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   15.496210][  T185]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   15.496341][  T185]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   15.496472][  T185]  copy_net_ns (net/core/net_namespace.c:579)
[   15.496605][  T185]  create_new_namespaces (kernel/nsproxy.c:132)
[   15.496742][  T185]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   15.496873][  T185]  ksys_unshare (kernel/fork.c:3243)
[   15.497001][  T185]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   15.497131][  T185]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   15.497261][  T185]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.497391][  T185]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   15.497522][  T185]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.497656][  T185]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   15.497790][  T185]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   15.497918][  T185]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.498047][  T185]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.498176][  T185]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.498307][  T185]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.498466][  T185] RIP: 0033:0x7fa0a8f22bcb
[   15.498605][  T185] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   15.499065][  T185] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   15.499262][  T185] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   15.499455][  T185] RDX: 00000000004063e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   15.499652][  T185] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   15.499848][  T185] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   15.500042][  T185] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   15.501928][   T12] ------------[ cut here ]------------
| [   15.502088][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   15.502366][   T12] Modules linked in:
| [   15.502837][   T12] Tainted: [W]=WARN
[   15.502972][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.503165][   T12] Workqueue: netns cleanup_net
[   15.503336][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.503535][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.504018][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   15.504213][   T12] RAX: 00000000ffffffa6 RBX: ff1100000e441a80 RCX: 1ff4000000018ed5
[   15.504434][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e441b3c
[   15.504660][   T12] RBP: ff1100001033c000 R08: 1fe2200001c88369 R09: ff11000001aed1d0
[   15.504893][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   15.505112][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   15.505336][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   15.505585][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.505798][   T12] CR2: 00000000004090e8 CR3: 00000000108d9001 CR4: 0000000000771ef0
[   15.506020][   T12] PKRU: 55555554
[   15.506154][   T12] Call Trace:
[   15.506294][   T12]  <TASK>
[   15.506400][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   15.506603][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   15.506817][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   15.506985][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   15.507151][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   15.507316][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   15.507485][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   15.507658][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   15.507839][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   15.508003][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.508171][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   15.508336][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   15.508499][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   15.508672][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.508852][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.509019][   T12]  process_one_work (kernel/workqueue.c:3314)
[   15.509188][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   15.509352][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.509521][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   15.509694][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   15.509869][   T12]  kthread (kernel/kthread.c:436)
[   15.510004][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   15.510200][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.510365][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   15.510531][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   15.510746][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   15.510913][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.511079][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   15.517573][  T185] ------------[ cut here ]------------
| [   15.517719][  T185] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: scm_rights/185
| [   15.517982][  T185] Modules linked in:
| [   15.518380][  T185] Tainted: [W]=WARN
[   15.518478][  T185] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.518645][  T185] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.518821][  T185] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.519285][  T185] RSP: 0018:ffa0000000887a78 EFLAGS: 00010286
[   15.519450][  T185] RAX: 00000000ffffffa6 RBX: ff11000005e7c040 RCX: 1ff4000000110f15
[   15.519650][  T185] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000005e7c0fc
[   15.519850][  T185] RBP: ff11000008c19000 R08: 1fe2200000bcf821 R09: ff1100000c1ad180
[   15.520044][  T185] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   15.520238][  T185] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008c19000
[   15.520434][  T185] FS:  00007fa0a8e27740(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   15.520667][  T185] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.520837][  T185] CR2: 00007fa0a8e2da00 CR3: 0000000010255004 CR4: 0000000000771ef0
[   15.521035][  T185] PKRU: 55555554
[   15.521132][  T185] Call Trace:
[   15.521229][  T185]  <TASK>
[   15.521296][  T185]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.521426][  T185]  ? notifier_call_chain (kernel/notifier.c:85)
[   15.521558][  T185]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.521661][  T185]  register_netdevice (net/core/dev.c:11488)
[   15.521797][  T185]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   15.521956][  T185]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.522089][  T185]  register_netdev (net/core/dev.c:11552)
[   15.522218][  T185]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   15.522349][  T185]  ops_init (net/core/net_namespace.c:137)
[   15.522448][  T185]  setup_net (net/core/net_namespace.c:446)
[   15.522547][  T185]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   15.522679][  T185]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   15.522813][  T185]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   15.522944][  T185]  copy_net_ns (net/core/net_namespace.c:579)
[   15.523074][  T185]  create_new_namespaces (kernel/nsproxy.c:132)
[   15.523207][  T185]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   15.523341][  T185]  ksys_unshare (kernel/fork.c:3243)
[   15.523470][  T185]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   15.523602][  T185]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   15.523737][  T185]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.523867][  T185]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   15.523998][  T185]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.524128][  T185]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   15.524258][  T185]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   15.524388][  T185]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.524518][  T185]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.524650][  T185]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.524782][  T185]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.524943][  T185] RIP: 0033:0x7fa0a8f22bcb
[   15.525078][  T185] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   15.525538][  T185] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   15.525742][  T185] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   15.525936][  T185] RDX: 00000000004063e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   15.526128][  T185] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   15.526323][  T185] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   15.526516][  T185] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   16.532721][   T12] ------------[ cut here ]------------
| [   16.532984][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   16.533277][   T12] Modules linked in:
| [   16.533769][   T12] Tainted: [W]=WARN
[   16.533905][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.534133][   T12] Workqueue: netns cleanup_net
[   16.534321][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.534546][   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
[   16.535096][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   16.535309][   T12] RAX: 00000000ffffffa6 RBX: ff1100000bccc200 RCX: 1ff4000000018eed
[   16.535537][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bccc2bc
[   16.535801][   T12] RBP: ff11000008c19000 R08: 1fe2200001799859 R09: ff11000001aed1d0
[   16.536032][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   16.536253][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   16.536497][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   16.536784][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.536986][   T12] CR2: 00000000004090e8 CR3: 00000000108d9001 CR4: 0000000000771ef0
[   16.537214][   T12] PKRU: 55555554
[   16.537359][   T12] Call Trace:
[   16.537502][   T12]  <TASK>
[   16.537626][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   16.537853][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   16.538050][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   16.538229][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   16.538400][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   16.538572][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   16.538762][   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)
[   16.538927][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   16.539099][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   16.539267][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.539446][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   16.539627][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   16.539820][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   16.539988][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   16.540162][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.540341][   T12]  process_one_work (kernel/workqueue.c:3314)
[   16.540528][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   16.540712][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.540913][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   16.541097][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   16.541285][   T12]  kthread (kernel/kthread.c:436)
[   16.541434][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   16.541645][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   16.541832][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   16.542005][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   16.542201][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   16.542370][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   16.542549][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   16.545257][   T12] ------------[ cut here ]------------
| [   16.545417][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   16.545698][   T12] Modules linked in:
| [   16.546168][   T12] Tainted: [W]=WARN
[   16.546305][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.546495][   T12] Workqueue: netns cleanup_net
[   16.546664][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.546872][   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
[   16.547330][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   16.547523][   T12] RAX: 00000000ffffffa6 RBX: ff1100000bccc900 RCX: 1ff4000000018eed
[   16.547758][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bccc9bc
[   16.547978][   T12] RBP: ff11000011cec000 R08: 1fe2200001799939 R09: ff11000001aed1d0
[   16.548198][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   16.548422][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   16.548652][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   16.548915][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.549109][   T12] CR2: 00000000004090e8 CR3: 00000000108d9001 CR4: 0000000000771ef0
[   16.549335][   T12] PKRU: 55555554
[   16.549467][   T12] Call Trace:
[   16.549606][   T12]  <TASK>
[   16.549713][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   16.549924][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   16.550117][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   16.550283][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   16.550449][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   16.550622][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   16.550800][   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)
[   16.550965][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   16.551130][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   16.551291][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.551458][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   16.551627][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   16.551878][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   16.552124][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   16.552283][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.552450][   T12]  process_one_work (kernel/workqueue.c:3314)
[   16.552624][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   16.552802][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.552973][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   16.553142][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   16.553307][   T12]  kthread (kernel/kthread.c:436)
[   16.553445][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   16.553643][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   16.553821][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   16.553992][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   16.554185][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   16.554347][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   16.554511][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   16.572595][   T12] ------------[ cut here ]------------
| [   16.572773][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   16.573045][   T12] Modules linked in:
| [   16.573489][   T12] Tainted: [W]=WARN
[   16.573632][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.573841][   T12] Workqueue: netns cleanup_net
[   16.574010][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.574205][   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
[   16.574672][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   16.574880][   T12] RAX: 00000000ffffffa6 RBX: ff1100000bccd000 RCX: 1ff4000000018eed
[   16.575097][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bccd0bc
[   16.575315][   T12] RBP: ff11000011cc9000 R08: 1fe2200001799a19 R09: ff11000001aed1d0
[   16.575533][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   16.575767][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   16.575985][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   16.576231][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.576426][   T12] CR2: 00000000004090e8 CR3: 00000000108d9001 CR4: 0000000000771ef0
[   16.576653][   T12] PKRU: 55555554
[   16.576796][   T12] Call Trace:
[   16.576930][   T12]  <TASK>
[   16.577035][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   16.577230][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   16.577419][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   16.577596][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   16.577772][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   16.577933][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   16.578096][   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)
[   16.578260][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   16.578424][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   16.578584][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.578771][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   16.578940][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   16.579101][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   16.579264][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   16.579426][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.579598][   T12]  process_one_work (kernel/workqueue.c:3314)
[   16.579781][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   16.579946][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.580115][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   16.580282][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   16.580445][   T12]  kthread (kernel/kthread.c:436)
[   16.580578][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   16.580790][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   16.580955][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   16.581120][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   16.581313][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   16.581476][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   16.581648][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   16.584020][   T12] ------------[ cut here ]------------
| [   16.584180][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   16.584450][   T12] Modules linked in:
| [   16.584908][   T12] Tainted: [W]=WARN
[   16.585042][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.585235][   T12] Workqueue: netns cleanup_net
[   16.585400][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.585600][   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
[   16.586069][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   16.586260][   T12] RAX: 00000000ffffffa6 RBX: ff1100000bccd380 RCX: 1ff4000000018eed
[   16.586477][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bccd43c
[   16.586699][   T12] RBP: ff11000011cb1000 R08: 1fe2200001799a89 R09: ff11000001aed1d0
[   16.586924][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   16.587142][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   16.587361][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   16.587613][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.587812][   T12] CR2: 00000000004090e8 CR3: 00000000108d9001 CR4: 0000000000771ef0
[   16.588033][   T12] PKRU: 55555554
[   16.588165][   T12] Call Trace:
[   16.588295][   T12]  <TASK>
[   16.588400][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   16.588602][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   16.588803][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   16.588966][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   16.589133][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   16.589294][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   16.589460][   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)
[   16.589629][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   16.589808][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   16.589969][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.590133][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   16.590296][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   16.590457][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   16.590631][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   16.590806][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.590972][   T12]  process_one_work (kernel/workqueue.c:3314)
[   16.591138][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   16.591299][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.591466][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   16.591639][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   16.591811][   T12]  kthread (kernel/kthread.c:436)
[   16.591949][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   16.592138][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   16.592300][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   16.592463][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   16.592662][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   16.592838][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   16.593004][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   16.595359][   T12] ------------[ cut here ]------------
| [   16.595516][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   16.595809][   T12] Modules linked in:
| [   16.596247][   T12] Tainted: [W]=WARN
[   16.596379][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.596566][   T12] Workqueue: netns cleanup_net
[   16.596753][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.596952][   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
[   16.597402][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   16.597675][   T12] RAX: 00000000ffffffa6 RBX: ff1100000bccd700 RCX: 1ff4000000018eed
[   16.597906][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bccd7bc
[   16.598195][   T12] RBP: ff11000011c99000 R08: 1fe2200001799af9 R09: ff11000001aed1d0
[   16.598409][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   16.598630][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   16.598864][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   16.599108][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.599295][   T12] CR2: 00000000004090e8 CR3: 00000000108d9001 CR4: 0000000000771ef0
[   16.599585][   T12] PKRU: 55555554
[   16.599724][   T12] Call Trace:
[   16.599867][   T12]  <TASK>
[   16.599972][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   16.600238][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   16.600425][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   16.600586][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   16.600768][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   16.601002][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   16.601163][   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)
[   16.601324][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   16.601490][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   16.601727][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.601904][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   16.602067][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   16.602227][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   16.602460][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   16.602626][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.602803][   T12]  process_one_work (kernel/workqueue.c:3314)
[   16.602972][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   16.603205][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.603372][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   16.603538][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   16.603709][   T12]  kthread (kernel/kthread.c:436)
[   16.603926][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   16.604118][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   16.604283][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   16.604445][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   16.604711][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   16.604886][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   16.605047][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   16.614053][  T187] ------------[ cut here ]------------
| [   16.614199][  T187] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/187
| [   16.614455][  T187] Modules linked in:
| [   16.614868][  T187] Tainted: [W]=WARN
[   16.614967][  T187] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.615130][  T187] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.615298][  T187] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.615777][  T187] RSP: 0018:ffa00000005d7a80 EFLAGS: 00010286
[   16.615944][  T187] RAX: 00000000ffffffa6 RBX: ff1100000e4af700 RCX: 1ff40000000baf16
[   16.616136][  T187] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e4af7bc
[   16.616329][  T187] RBP: ff1100000c7a1000 R08: 1fe2200001c95ef9 R09: ff1100000fd95180
[   16.616526][  T187] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   16.616723][  T187] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000c7a1000
[   16.616926][  T187] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   16.617153][  T187] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.617320][  T187] CR2: 00007fa0a8f22bc0 CR3: 00000000102fd006 CR4: 0000000000771ef0
[   16.617514][  T187] PKRU: 55555554
[   16.617615][  T187] Call Trace:
[   16.617712][  T187]  <TASK>
[   16.617783][  T187]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.617916][  T187]  ? notifier_call_chain (kernel/notifier.c:85)
[   16.618046][  T187]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.618146][  T187]  register_netdevice (net/core/dev.c:11488)
[   16.618289][  T187]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   16.618449][  T187]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   16.618580][  T187]  register_netdev (net/core/dev.c:11552)
[   16.618716][  T187]  loopback_net_init (drivers/net/loopback.c:218)
[   16.618854][  T187]  ops_init (net/core/net_namespace.c:137)
[   16.618954][  T187]  setup_net (net/core/net_namespace.c:446)
[   16.619052][  T187]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   16.619182][  T187]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   16.619312][  T187]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   16.619443][  T187]  copy_net_ns (net/core/net_namespace.c:579)
[   16.619575][  T187]  create_new_namespaces (kernel/nsproxy.c:132)
[   16.619712][  T187]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   16.619846][  T187]  ksys_unshare (kernel/fork.c:3243)
[   16.619976][  T187]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.620108][  T187]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   16.620236][  T187]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.620367][  T187]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   16.620497][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.620629][  T187]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   16.620761][  T187]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   16.620890][  T187]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.621019][  T187]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.621147][  T187]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.621275][  T187]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.621435][  T187] RIP: 0033:0x7fa0a8f22bcb
[   16.621571][  T187] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   16.622040][  T187] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   16.622234][  T187] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   16.622426][  T187] RDX: 00000000004063e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   16.622626][  T187] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   16.622826][  T187] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   16.623018][  T187] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   16.627213][  T187] ------------[ cut here ]------------
| [   16.627347][  T187] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/187
| [   16.627601][  T187] Modules linked in:
| [   16.627994][  T187] Tainted: [W]=WARN
[   16.628091][  T187] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.628252][  T187] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.628420][  T187] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.628887][  T187] RSP: 0018:ffa00000005d7918 EFLAGS: 00010286
[   16.629049][  T187] RAX: 00000000ffffffa6 RBX: ff11000009696200 RCX: 1ff40000000baee9
[   16.629238][  T187] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000096962bc
[   16.629429][  T187] RBP: ff11000010bd4000 R08: 1fe22000012d2c59 R09: ff1100000fd95180
[   16.629626][  T187] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   16.629823][  T187] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000010bd4000
[   16.630016][  T187] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   16.630241][  T187] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.630402][  T187] CR2: 00007fa0a8f22bc0 CR3: 00000000102fd006 CR4: 0000000000771ef0
[   16.630598][  T187] PKRU: 55555554
[   16.630693][  T187] Call Trace:
[   16.630796][  T187]  <TASK>
[   16.630863][  T187]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.630990][  T187]  ? notifier_call_chain (kernel/notifier.c:85)
[   16.631119][  T187]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.631217][  T187]  register_netdevice (net/core/dev.c:11488)
[   16.631347][  T187]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   16.631507][  T187]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   16.631640][  T187]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   16.631773][  T187]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   16.631900][  T187]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   16.632029][  T187]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   16.632158][  T187]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   16.632289][  T187]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   16.632419][  T187]  ops_init (net/core/net_namespace.c:137)
[   16.632518][  T187]  setup_net (net/core/net_namespace.c:446)
[   16.632623][  T187]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   16.632756][  T187]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   16.632885][  T187]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   16.633015][  T187]  copy_net_ns (net/core/net_namespace.c:579)
[   16.633145][  T187]  create_new_namespaces (kernel/nsproxy.c:132)
[   16.633278][  T187]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   16.633407][  T187]  ksys_unshare (kernel/fork.c:3243)
[   16.633537][  T187]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.633669][  T187]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   16.633803][  T187]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.633931][  T187]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   16.634062][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.634190][  T187]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   16.634318][  T187]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   16.634447][  T187]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.634574][  T187]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.634706][  T187]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.634838][  T187]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.634997][  T187] RIP: 0033:0x7fa0a8f22bcb
[   16.635128][  T187] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   16.635583][  T187] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   16.635785][  T187] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   16.635977][  T187] RDX: 00000000004063e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   16.636167][  T187] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   16.636361][  T187] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   16.636550][  T187] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   16.638373][   T12] ------------[ cut here ]------------
| [   16.638502][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   16.638748][   T12] Modules linked in:
| [   16.639123][   T12] Tainted: [W]=WARN
[   16.639215][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.639363][   T12] Workqueue: netns cleanup_net
[   16.639484][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.639641][   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
[   16.640068][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   16.640215][   T12] RAX: 00000000ffffffa6 RBX: ff11000009642740 RCX: 1ff4000000018ed5
[   16.640389][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000096427fc
[   16.640567][   T12] RBP: ff1100000fdec000 R08: 1fe22000012c8501 R09: ff11000001aed1d0
[   16.640752][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   16.640926][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   16.641102][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   16.641309][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.641455][   T12] CR2: 00007fa0a8e9a0a0 CR3: 0000000011c81004 CR4: 0000000000771ef0
[   16.641635][   T12] PKRU: 55555554
[   16.641722][   T12] Call Trace:
[   16.641815][   T12]  <TASK>
[   16.641877][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   16.642026][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   16.642175][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   16.642295][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   16.642415][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   16.642532][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   16.642652][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   16.642776][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   16.642895][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   16.643011][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.643129][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   16.643247][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   16.643364][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   16.643482][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   16.643604][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.643722][   T12]  process_one_work (kernel/workqueue.c:3314)
[   16.643848][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   16.643964][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.644085][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   16.644207][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   16.644323][   T12]  kthread (kernel/kthread.c:436)
[   16.644412][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   16.644556][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   16.644682][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   16.644812][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   16.644956][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   16.645074][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   16.645191][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   16.651379][  T187] ------------[ cut here ]------------
| [   16.651516][  T187] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/187
| [   16.651783][  T187] Modules linked in:
| [   16.652178][  T187] Tainted: [W]=WARN
[   16.652277][  T187] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.652440][  T187] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.652613][  T187] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.653079][  T187] RSP: 0018:ffa00000005d78f8 EFLAGS: 00010286
[   16.653245][  T187] RAX: 00000000ffffffa6 RBX: ff1100000ebb91c0 RCX: 1ff40000000baee5
[   16.653442][  T187] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ebb927c
[   16.653642][  T187] RBP: ff11000005014000 R08: 1fe2200001d77251 R09: ff1100000fd95180
[   16.653842][  T187] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   16.654036][  T187] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000005014000
[   16.654233][  T187] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   16.654460][  T187] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.654626][  T187] CR2: 00007fa0a8f22bc0 CR3: 00000000102fd006 CR4: 0000000000771ef0
[   16.654829][  T187] PKRU: 55555554
[   16.654927][  T187] Call Trace:
[   16.655024][  T187]  <TASK>
[   16.655093][  T187]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.655225][  T187]  ? notifier_call_chain (kernel/notifier.c:85)
[   16.655357][  T187]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.655456][  T187]  register_netdevice (net/core/dev.c:11488)
[   16.655593][  T187]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   16.655762][  T187]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   16.655896][  T187]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   16.656031][  T187]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   16.656161][  T187]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   16.656292][  T187]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   16.656422][  T187]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   16.656553][  T187]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   16.656689][  T187]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   16.656828][  T187]  vti_init_net (net/ipv4/ip_vti.c:517)
[   16.656959][  T187]  ops_init (net/core/net_namespace.c:137)
[   16.657060][  T187]  setup_net (net/core/net_namespace.c:446)
[   16.657158][  T187]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   16.657287][  T187]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   16.657418][  T187]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   16.657551][  T187]  copy_net_ns (net/core/net_namespace.c:579)
[   16.657686][  T187]  create_new_namespaces (kernel/nsproxy.c:132)
[   16.657825][  T187]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   16.657960][  T187]  ksys_unshare (kernel/fork.c:3243)
[   16.658090][  T187]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.658220][  T187]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   16.658350][  T187]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.658481][  T187]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   16.658618][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.658751][  T187]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   16.658884][  T187]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   16.659017][  T187]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.659147][  T187]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.659276][  T187]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.659407][  T187]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.659568][  T187] RIP: 0033:0x7fa0a8f22bcb
[   16.659708][  T187] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   16.660175][  T187] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   16.660372][  T187] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   16.660568][  T187] RDX: 00000000004063e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   16.660773][  T187] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   16.660968][  T187] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   16.661162][  T187] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   16.665346][  T187] ------------[ cut here ]------------
| [   16.665482][  T187] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/187
| [   16.665752][  T187] Modules linked in:
| [   16.666149][  T187] Tainted: [W]=WARN
[   16.666248][  T187] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.666409][  T187] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.666579][  T187] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.667057][  T187] RSP: 0018:ffa00000005d7a78 EFLAGS: 00010286
[   16.667222][  T187] RAX: 00000000ffffffa6 RBX: ff1100000ebb83c0 RCX: 1ff40000000baf15
[   16.667417][  T187] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ebb847c
[   16.667618][  T187] RBP: ff11000010a2c000 R08: 1fe2200001d77091 R09: ff1100000fd95180
[   16.667818][  T187] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   16.668013][  T187] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000010a2c000
[   16.668209][  T187] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   16.668436][  T187] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.668604][  T187] CR2: 00007fa0a8f22bc0 CR3: 00000000102fd006 CR4: 0000000000771ef0
[   16.668805][  T187] PKRU: 55555554
[   16.668903][  T187] Call Trace:
[   16.669000][  T187]  <TASK>
[   16.669067][  T187]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.669198][  T187]  ? notifier_call_chain (kernel/notifier.c:85)
[   16.669330][  T187]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.669432][  T187]  register_netdevice (net/core/dev.c:11488)
[   16.669565][  T187]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   16.669729][  T187]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.669866][  T187]  register_netdev (net/core/dev.c:11552)
[   16.669996][  T187]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   16.670128][  T187]  ops_init (net/core/net_namespace.c:137)
[   16.670228][  T187]  setup_net (net/core/net_namespace.c:446)
[   16.670327][  T187]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   16.670459][  T187]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   16.670594][  T187]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   16.670727][  T187]  copy_net_ns (net/core/net_namespace.c:579)
[   16.670862][  T187]  create_new_namespaces (kernel/nsproxy.c:132)
[   16.670998][  T187]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   16.671128][  T187]  ksys_unshare (kernel/fork.c:3243)
[   16.671259][  T187]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.671389][  T187]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   16.671518][  T187]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.671653][  T187]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   16.671790][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.671922][  T187]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   16.672051][  T187]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   16.672184][  T187]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.672314][  T187]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.672444][  T187]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.672575][  T187]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.672746][  T187] RIP: 0033:0x7fa0a8f22bcb
[   16.672882][  T187] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   16.673346][  T187] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   16.673543][  T187] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   16.673746][  T187] RDX: 00000000004063e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   16.673940][  T187] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   16.674135][  T187] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   16.674328][  T187] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   16.685622][  T187] ------------[ cut here ]------------
| [   16.685765][  T187] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/187
| [   16.686025][  T187] Modules linked in:
| [   16.686425][  T187] Tainted: [W]=WARN
[   16.686524][  T187] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.686690][  T187] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.686862][  T187] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.687320][  T187] RSP: 0018:ffa00000005d7a68 EFLAGS: 00010286
[   16.687484][  T187] RAX: 00000000ffffffa6 RBX: ff11000009697380 RCX: 1ff40000000baf13
[   16.687683][  T187] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000969743c
[   16.687878][  T187] RBP: ff1100000fd4c000 R08: 1fe22000012d2e89 R09: ff1100000fd95180
[   16.688073][  T187] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   16.688268][  T187] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fd4c000
[   16.688462][  T187] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   16.688693][  T187] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.688861][  T187] CR2: 00007fa0a8f22bc0 CR3: 00000000102fd006 CR4: 0000000000771ef0
[   16.689055][  T187] PKRU: 55555554
[   16.689153][  T187] Call Trace:
[   16.689249][  T187]  <TASK>
[   16.689316][  T187]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.689445][  T187]  ? notifier_call_chain (kernel/notifier.c:85)
[   16.689574][  T187]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.689678][  T187]  register_netdevice (net/core/dev.c:11488)
[   16.689817][  T187]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   16.689984][  T187]  register_netdev (net/core/dev.c:11552)
[   16.690116][  T187]  sit_init_net (net/ipv6/sit.c:1860)
[   16.690247][  T187]  ops_init (net/core/net_namespace.c:137)
[   16.690346][  T187]  setup_net (net/core/net_namespace.c:446)
[   16.690445][  T187]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   16.690575][  T187]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   16.690711][  T187]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   16.690846][  T187]  copy_net_ns (net/core/net_namespace.c:579)
[   16.690980][  T187]  create_new_namespaces (kernel/nsproxy.c:132)
[   16.691113][  T187]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   16.691244][  T187]  ksys_unshare (kernel/fork.c:3243)
[   16.691374][  T187]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.691504][  T187]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   16.691636][  T187]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.691773][  T187]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   16.691906][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.692037][  T187]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   16.692166][  T187]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   16.692295][  T187]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.692424][  T187]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.692554][  T187]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.692689][  T187]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.692855][  T187] RIP: 0033:0x7fa0a8f22bcb
[   16.692991][  T187] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   16.693449][  T187] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   16.693649][  T187] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   16.693847][  T187] RDX: 00000000004063e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   16.694039][  T187] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   16.694232][  T187] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   16.694425][  T187] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   16.699060][  T187] ------------[ cut here ]------------
| [   16.699194][  T187] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/187
| [   16.699450][  T187] Modules linked in:
| [   16.699853][  T187] Tainted: [W]=WARN
[   16.699951][  T187] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.700112][  T187] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.700279][  T187] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.700747][  T187] RSP: 0018:ffa00000005d7a78 EFLAGS: 00010286
[   16.700909][  T187] RAX: 00000000ffffffa6 RBX: ff1100000bc598c0 RCX: 1ff40000000baf15
[   16.701102][  T187] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bc5997c
[   16.701293][  T187] RBP: ff1100000502c000 R08: 1fe220000178b331 R09: ff1100000fd95180
[   16.701487][  T187] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   16.701684][  T187] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000502c000
[   16.701904][  T187] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   16.702133][  T187] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.702294][  T187] CR2: 00007fa0a8f22bc0 CR3: 00000000102fd006 CR4: 0000000000771ef0
[   16.702489][  T187] PKRU: 55555554
[   16.702585][  T187] Call Trace:
[   16.702685][  T187]  <TASK>
[   16.702756][  T187]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.702887][  T187]  ? notifier_call_chain (kernel/notifier.c:85)
[   16.703018][  T187]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.703117][  T187]  register_netdevice (net/core/dev.c:11488)
[   16.703249][  T187]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   16.703410][  T187]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.703542][  T187]  register_netdev (net/core/dev.c:11552)
[   16.703677][  T187]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   16.703809][  T187]  ops_init (net/core/net_namespace.c:137)
[   16.703910][  T187]  setup_net (net/core/net_namespace.c:446)
[   16.704008][  T187]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   16.704136][  T187]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   16.704266][  T187]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   16.704398][  T187]  copy_net_ns (net/core/net_namespace.c:579)
[   16.704527][  T187]  create_new_namespaces (kernel/nsproxy.c:132)
[   16.704664][  T187]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   16.704800][  T187]  ksys_unshare (kernel/fork.c:3243)
[   16.704930][  T187]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.705058][  T187]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   16.705186][  T187]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.705316][  T187]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   16.705446][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.705576][  T187]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   16.705710][  T187]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   16.705843][  T187]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.705971][  T187]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.706100][  T187]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.706229][  T187]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.706390][  T187] RIP: 0033:0x7fa0a8f22bcb
[   16.706524][  T187] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   16.706997][  T187] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   16.707193][  T187] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   16.707387][  T187] RDX: 00000000004063e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   16.707595][  T187] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   16.707795][  T187] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   16.707987][  T187] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   17.716333][   T12] ------------[ cut here ]------------
| [   17.716507][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   17.717416][   T12] Modules linked in:
| [   17.726300][   T12] Tainted: [W]=WARN
[   17.726412][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.726563][   T12] Workqueue: netns cleanup_net
[   17.726697][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.726874][   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
[   17.727297][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   17.727447][   T12] RAX: 00000000ffffffa6 RBX: ff11000009643e00 RCX: 1ff4000000018eed
[   17.727633][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009643ebc
[   17.727824][   T12] RBP: ff1100000502c000 R08: 1fe22000012c87d9 R09: ff11000001aed1d0
[   17.727999][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   17.728178][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   17.728356][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   17.728564][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.728718][   T12] CR2: 00000000004090e8 CR3: 00000000108d9005 CR4: 0000000000771ef0
[   17.728903][   T12] PKRU: 55555554
[   17.728991][   T12] Call Trace:
[   17.729080][   T12]  <TASK>
[   17.729142][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   17.729295][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   17.729442][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   17.729564][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   17.729687][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   17.729811][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   17.729930][   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)
[   17.730055][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   17.730178][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   17.730294][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.730418][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   17.730535][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   17.730655][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   17.730777][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   17.730895][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.731016][   T12]  process_one_work (kernel/workqueue.c:3314)
[   17.731138][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   17.731255][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.731377][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   17.731500][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   17.731621][   T12]  kthread (kernel/kthread.c:436)
[   17.731712][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   17.731869][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   17.731986][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   17.732106][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   17.732255][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   17.732374][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   17.732492][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   17.757429][   T12] ------------[ cut here ]------------
| [   17.757562][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   17.757805][   T12] Modules linked in:
| [   17.758168][   T12] Tainted: [W]=WARN
[   17.758264][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.758412][   T12] Workqueue: netns cleanup_net
[   17.758538][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.758696][   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
[   17.759125][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   17.759277][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c07f380 RCX: 1ff4000000018eed
[   17.759457][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c07f43c
[   17.759642][   T12] RBP: ff1100000fd4c000 R08: 1fe220000180fe89 R09: ff11000001aed1d0
[   17.759824][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   17.760002][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   17.760182][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   17.760388][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.760539][   T12] CR2: 00000000004090e8 CR3: 00000000108d9005 CR4: 0000000000771ef0
[   17.760721][   T12] PKRU: 55555554
[   17.760816][   T12] Call Trace:
[   17.760905][   T12]  <TASK>
[   17.760968][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   17.761121][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   17.761266][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   17.761387][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   17.761512][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   17.761632][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   17.761757][   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)
[   17.761887][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   17.762008][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   17.762126][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.762248][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   17.762368][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   17.762486][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   17.762611][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   17.762728][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.762856][   T12]  process_one_work (kernel/workqueue.c:3314)
[   17.762976][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   17.763093][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.763220][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   17.763341][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   17.763457][   T12]  kthread (kernel/kthread.c:436)
[   17.763546][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   17.763699][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   17.763823][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   17.763941][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   17.764087][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   17.764205][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   17.764323][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   17.766513][   T12] ------------[ cut here ]------------
| [   17.766633][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   17.766868][   T12] Modules linked in:
| [   17.767223][   T12] Tainted: [W]=WARN
[   17.767312][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.767458][   T12] Workqueue: netns cleanup_net
[   17.767580][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.767743][   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
[   17.768174][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   17.768321][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c07fa80 RCX: 1ff4000000018eed
[   17.768499][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c07fb3c
[   17.768686][   T12] RBP: ff11000010a2c000 R08: 1fe220000180ff69 R09: ff11000001aed1d0
[   17.768866][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   17.769045][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   17.769221][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   17.769425][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.769572][   T12] CR2: 00000000004090e8 CR3: 00000000108d9005 CR4: 0000000000771ef0
[   17.769758][   T12] PKRU: 55555554
[   17.769846][   T12] Call Trace:
[   17.769935][   T12]  <TASK>
[   17.769996][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   17.770146][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   17.770293][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   17.770410][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   17.770529][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   17.770649][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   17.770775][   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)
[   17.770894][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   17.771013][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   17.771134][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.771254][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   17.771372][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   17.771491][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   17.771612][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   17.771731][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.771856][   T12]  process_one_work (kernel/workqueue.c:3314)
[   17.771977][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   17.772095][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.772217][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   17.772338][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   17.772456][   T12]  kthread (kernel/kthread.c:436)
[   17.772546][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   17.772698][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   17.772821][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   17.772940][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   17.773086][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   17.773204][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   17.773322][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   17.775290][   T12] ------------[ cut here ]------------
| [   17.775406][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   17.775636][   T12] Modules linked in:
| [   17.775995][   T12] Tainted: [W]=WARN
[   17.776083][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.776241][   T12] Workqueue: netns cleanup_net
[   17.776362][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.776514][   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
[   17.776938][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   17.777089][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c07fe00 RCX: 1ff4000000018eed
[   17.777262][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c07febc
[   17.777436][   T12] RBP: ff11000005014000 R08: 1fe220000180ffd9 R09: ff11000001aed1d0
[   17.777621][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   17.777800][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   17.777976][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   17.778181][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.778327][   T12] CR2: 00000000004090e8 CR3: 00000000108d9005 CR4: 0000000000771ef0
[   17.778581][   T12] PKRU: 55555554
[   17.778672][   T12] Call Trace:
[   17.778766][   T12]  <TASK>
[   17.778827][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   17.778977][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   17.779193][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   17.779312][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   17.779430][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   17.779546][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   17.779744][   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)
[   17.779868][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   17.779986][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   17.780103][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.780294][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   17.780411][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   17.780527][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   17.780649][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   17.780843][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.780962][   T12]  process_one_work (kernel/workqueue.c:3314)
[   17.781084][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   17.781202][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.781394][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   17.781515][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   17.781641][   T12]  kthread (kernel/kthread.c:436)
[   17.781728][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   17.781947][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   17.782064][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   17.782182][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   17.782405][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   17.782523][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   17.782644][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   17.785184][   T12] ------------[ cut here ]------------
| [   17.785375][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   17.785606][   T12] Modules linked in:
| [   17.786038][   T12] Tainted: [W]=WARN
[   17.786125][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.786269][   T12] Workqueue: netns cleanup_net
[   17.786465][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.786622][   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
[   17.787126][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   17.787272][   T12] RAX: 00000000ffffffa6 RBX: ff1100000b62e3c0 RCX: 1ff4000000018eed
[   17.787445][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b62e47c
[   17.787693][   T12] RBP: ff11000010bd4000 R08: 1fe22000016c5c91 R09: ff11000001aed1d0
[   17.787874][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   17.788118][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   17.788292][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   17.788496][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.788719][   T12] CR2: 00000000004090e8 CR3: 00000000108d9005 CR4: 0000000000771ef0
[   17.788900][   T12] PKRU: 55555554
[   17.788987][   T12] Call Trace:
[   17.789073][   T12]  <TASK>
[   17.789205][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   17.789357][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   17.789502][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   17.789622][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   17.789818][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   17.789940][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   17.790057][   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)
[   17.790175][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   17.790364][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   17.790481][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.790605][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   17.790724][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   17.790916][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   17.791035][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   17.791151][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.791271][   T12]  process_one_work (kernel/workqueue.c:3314)
[   17.791462][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   17.791577][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.791703][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   17.791832][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   17.792024][   T12]  kthread (kernel/kthread.c:436)
[   17.792112][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   17.792258][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   17.792375][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   17.792565][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   17.792714][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   17.792839][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   17.792956][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   17.801663][  T189] ------------[ cut here ]------------
| [   17.801855][  T189] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/189
| [   17.802158][  T189] Modules linked in:
| [   17.802660][  T189] Tainted: [W]=WARN
[   17.802818][  T189] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.803034][  T189] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.803252][  T189] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   17.803778][  T189] RSP: 0018:ffa0000000557a80 EFLAGS: 00010286
[   17.803990][  T189] RAX: 00000000ffffffa6 RBX: ff1100000c4bf380 RCX: 1ff40000000aaf16
[   17.804234][  T189] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c4bf43c
[   17.804475][  T189] RBP: ff11000009cf4000 R08: 1fe2200001897e89 R09: ff11000008ed5180
[   17.804724][  T189] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   17.804977][  T189] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009cf4000
[   17.805225][  T189] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   17.805500][  T189] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.805717][  T189] CR2: 00007fa0a8f22bc0 CR3: 0000000010be4002 CR4: 0000000000771ef0
[   17.805974][  T189] PKRU: 55555554
[   17.806118][  T189] Call Trace:
[   17.806267][  T189]  <TASK>
[   17.806381][  T189]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   17.806560][  T189]  ? notifier_call_chain (kernel/notifier.c:85)
[   17.806757][  T189]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   17.806906][  T189]  register_netdevice (net/core/dev.c:11488)
[   17.807087][  T189]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   17.807299][  T189]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   17.807484][  T189]  register_netdev (net/core/dev.c:11552)
[   17.807669][  T189]  loopback_net_init (drivers/net/loopback.c:218)
[   17.807861][  T189]  ops_init (net/core/net_namespace.c:137)
[   17.808008][  T189]  setup_net (net/core/net_namespace.c:446)
[   17.808155][  T189]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   17.808331][  T189]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   17.808509][  T189]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   17.808695][  T189]  copy_net_ns (net/core/net_namespace.c:579)
[   17.808886][  T189]  create_new_namespaces (kernel/nsproxy.c:132)
[   17.809067][  T189]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   17.809245][  T189]  ksys_unshare (kernel/fork.c:3243)
[   17.809422][  T189]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.809606][  T189]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   17.809796][  T189]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.809975][  T189]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   17.810157][  T189]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.810335][  T189]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   17.810511][  T189]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   17.810695][  T189]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   17.810881][  T189]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   17.811058][  T189]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   17.811236][  T189]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.811444][  T189] RIP: 0033:0x7fa0a8f22bcb
[   17.811637][  T189] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   17.812158][  T189] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   17.812399][  T189] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   17.812648][  T189] RDX: 00000000004063e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   17.812901][  T189] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   17.813142][  T189] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   17.813382][  T189] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   17.818105][  T189] ------------[ cut here ]------------
| [   17.818282][  T189] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/189
| [   17.818586][  T189] Modules linked in:
| [   17.819101][  T189] Tainted: [W]=WARN
[   17.819244][  T189] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.819451][  T189] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.819673][  T189] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   17.820193][  T189] RSP: 0018:ffa0000000557918 EFLAGS: 00010286
[   17.820403][  T189] RAX: 00000000ffffffa6 RBX: ff1100000cfbc900 RCX: 1ff40000000aaee9
[   17.820647][  T189] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cfbc9bc
[   17.820900][  T189] RBP: ff1100000a3a4000 R08: 1fe22000019f7939 R09: ff11000008ed5180
[   17.821138][  T189] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   17.821375][  T189] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a3a4000
[   17.821625][  T189] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   17.821913][  T189] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.822121][  T189] CR2: 00007fa0a8f22bc0 CR3: 0000000010be4002 CR4: 0000000000771ef0
[   17.822363][  T189] PKRU: 55555554
[   17.822507][  T189] Call Trace:
[   17.822659][  T189]  <TASK>
[   17.822786][  T189]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   17.822968][  T189]  ? notifier_call_chain (kernel/notifier.c:85)
[   17.823151][  T189]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   17.823298][  T189]  register_netdevice (net/core/dev.c:11488)
[   17.823479][  T189]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   17.823696][  T189]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   17.823884][  T189]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   17.824063][  T189]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   17.824241][  T189]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   17.824424][  T189]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   17.824609][  T189]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   17.824802][  T189]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   17.824984][  T189]  ops_init (net/core/net_namespace.c:137)
[   17.825131][  T189]  setup_net (net/core/net_namespace.c:446)
[   17.825278][  T189]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   17.825453][  T189]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   17.825638][  T189]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   17.825834][  T189]  copy_net_ns (net/core/net_namespace.c:579)
[   17.826015][  T189]  create_new_namespaces (kernel/nsproxy.c:132)
[   17.826196][  T189]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   17.826375][  T189]  ksys_unshare (kernel/fork.c:3243)
[   17.826551][  T189]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.826750][  T189]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   17.826929][  T189]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.827111][  T189]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   17.827290][  T189]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.827468][  T189]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   17.827651][  T189]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   17.827844][  T189]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   17.828022][  T189]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   17.828203][  T189]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   17.828383][  T189]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.828615][  T189] RIP: 0033:0x7fa0a8f22bcb
[   17.828811][  T189] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   17.829315][  T189] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   17.829570][  T189] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   17.829830][  T189] RDX: 00000000004063e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   17.830070][  T189] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   17.830310][  T189] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   17.830550][  T189] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   17.834826][  T189] ------------[ cut here ]------------
| [   17.835004][  T189] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/189
| [   17.835326][  T189] Modules linked in:
| [   17.835840][  T189] Tainted: [W]=WARN
[   17.835986][  T189] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.836196][  T189] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.836428][  T189] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   17.836965][  T189] RSP: 0018:ffa00000005578f8 EFLAGS: 00010286
[   17.837178][  T189] RAX: 00000000ffffffa6 RBX: ff1100000c745700 RCX: 1ff40000000aaee5
[   17.837432][  T189] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c7457bc
[   17.837683][  T189] RBP: ff1100000a3bc000 R08: 1fe22000018e8af9 R09: ff11000008ed5180
[   17.837939][  T189] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   17.838183][  T189] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a3bc000
[   17.838428][  T189] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   17.838727][  T189] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.839024][  T189] CR2: 00007fa0a8f22bc0 CR3: 0000000010be4002 CR4: 0000000000771ef0
[   17.839270][  T189] PKRU: 55555554
[   17.839416][  T189] Call Trace:
[   17.839561][  T189]  <TASK>
[   17.839681][  T189]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   17.839889][  T189]  ? notifier_call_chain (kernel/notifier.c:85)
[   17.840070][  T189]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   17.840220][  T189]  register_netdevice (net/core/dev.c:11488)
[   17.840402][  T189]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   17.840621][  T189]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   17.840816][  T189]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   17.840997][  T189]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   17.841192][  T189]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   17.841372][  T189]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   17.841553][  T189]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   17.841751][  T189]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   17.841930][  T189]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   17.842112][  T189]  vti_init_net (net/ipv4/ip_vti.c:517)
[   17.842292][  T189]  ops_init (net/core/net_namespace.c:137)
[   17.842440][  T189]  setup_net (net/core/net_namespace.c:446)
[   17.842606][  T189]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   17.842798][  T189]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   17.842978][  T189]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   17.843159][  T189]  copy_net_ns (net/core/net_namespace.c:579)
[   17.843353][  T189]  create_new_namespaces (kernel/nsproxy.c:132)
[   17.843535][  T189]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   17.843722][  T189]  ksys_unshare (kernel/fork.c:3243)
[   17.843928][  T189]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.844108][  T189]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   17.844284][  T189]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.844464][  T189]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   17.844651][  T189]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.844847][  T189]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   17.845026][  T189]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   17.845216][  T189]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   17.845394][  T189]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   17.845573][  T189]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   17.845772][  T189]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.845982][  T189] RIP: 0033:0x7fa0a8f22bcb
[   17.846166][  T189] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   17.846695][  T189] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   17.846947][  T189] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   17.847191][  T189] RDX: 00000000004063e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   17.847433][  T189] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   17.847696][  T189] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   17.847948][  T189] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   17.852703][  T189] ------------[ cut here ]------------
| [   17.852927][  T189] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/189
| [   17.853230][  T189] Modules linked in:
| [   17.853753][  T189] Tainted: [W]=WARN
[   17.853896][  T189] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.854104][  T189] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.854413][  T189] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   17.855047][  T189] RSP: 0018:ffa0000000557a78 EFLAGS: 00010286
[   17.855259][  T189] RAX: 00000000ffffffa6 RBX: ff1100000c4beac0 RCX: 1ff40000000aaf15
[   17.855497][  T189] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c4beb7c
[   17.855846][  T189] RBP: ff110000102b4000 R08: 1fe2200001897d71 R09: ff11000008ed5180
[   17.856087][  T189] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   17.856327][  T189] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000102b4000
[   17.856672][  T189] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   17.856977][  T189] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.857189][  T189] CR2: 00007fa0a8f22bc0 CR3: 0000000010be4002 CR4: 0000000000771ef0
[   17.857519][  T189] PKRU: 55555554
[   17.857669][  T189] Call Trace:
[   17.857826][  T189]  <TASK>
[   17.857942][  T189]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   17.858206][  T189]  ? notifier_call_chain (kernel/notifier.c:85)
[   17.858385][  T189]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   17.858533][  T189]  register_netdevice (net/core/dev.c:11488)
[   17.858721][  T189]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   17.859026][  T189]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.859208][  T189]  register_netdev (net/core/dev.c:11552)
[   17.859399][  T189]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   17.859579][  T189]  ops_init (net/core/net_namespace.c:137)
[   17.859834][  T189]  setup_net (net/core/net_namespace.c:446)
[   17.859980][  T189]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   17.860156][  T189]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   17.860334][  T189]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   17.860513][  T189]  copy_net_ns (net/core/net_namespace.c:579)
[   17.860798][  T189]  create_new_namespaces (kernel/nsproxy.c:132)
[   17.860980][  T189]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   17.861159][  T189]  ksys_unshare (kernel/fork.c:3243)
[   17.861336][  T189]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.861608][  T189]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   17.861800][  T189]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.861980][  T189]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   17.862159][  T189]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.862423][  T189]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   17.862606][  T189]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   17.862798][  T189]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   17.862977][  T189]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   17.863241][  T189]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   17.863420][  T189]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.863635][  T189] RIP: 0033:0x7fa0a8f22bcb
[   17.863922][  T189] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   17.864447][  T189] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   17.864798][  T189] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   17.865039][  T189] RDX: 00000000004063e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   17.865366][  T189] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   17.865625][  T189] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   17.865877][  T189] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   17.868514][   T12] ------------[ cut here ]------------
| [   17.868646][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   17.868960][   T12] Modules linked in:
| [   17.869391][   T12] Tainted: [W]=WARN
[   17.869483][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.869634][   T12] Workqueue: netns cleanup_net
[   17.869841][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.869994][   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
[   17.870504][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   17.870659][   T12] RAX: 00000000ffffffa6 RBX: ff11000010846740 RCX: 1ff4000000018ed5
[   17.870847][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000108467fc
[   17.871096][   T12] RBP: ff1100000c7a1000 R08: 1fe2200002108d01 R09: ff11000001aed1d0
[   17.871274][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   17.871449][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   17.871711][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   17.871922][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.872146][   T12] CR2: 00000000004090e8 CR3: 00000000108d9005 CR4: 0000000000771ef0
[   17.872325][   T12] PKRU: 55555554
[   17.872413][   T12] Call Trace:
[   17.872501][   T12]  <TASK>
[   17.872563][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   17.872798][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   17.872948][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   17.873071][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   17.873265][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   17.873385][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   17.873504][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   17.873628][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   17.873828][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   17.873948][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.874072][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   17.874191][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   17.874383][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   17.874503][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   17.874624][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.874748][   T12]  process_one_work (kernel/workqueue.c:3314)
[   17.874943][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   17.875061][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.875184][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   17.875308][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   17.875500][   T12]  kthread (kernel/kthread.c:436)
[   17.875589][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   17.875745][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   17.875865][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   17.876056][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   17.876204][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   17.876327][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   17.876446][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   17.883990][  T189] ------------[ cut here ]------------
| [   17.884168][  T189] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/189
| [   17.884485][  T189] Modules linked in:
| [   17.885466][  T189] Tainted: [W]=WARN
[   17.885673][  T189] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.885965][  T189] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.886236][  T189] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   17.886818][  T189] RSP: 0018:ffa0000000557a68 EFLAGS: 00010286
[   17.887082][  T189] RAX: 00000000ffffffa6 RBX: ff11000010846ac0 RCX: 1ff40000000aaf13
[   17.887387][  T189] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000010846b7c
[   17.887690][  T189] RBP: ff1100000a3c4000 R08: 1fe2200002108d71 R09: ff11000008ed5180
[   17.887997][  T189] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   17.888291][  T189] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a3c4000
[   17.888608][  T189] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   17.888951][  T189] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.889215][  T189] CR2: 00007fa0a8f22bc0 CR3: 0000000010be4002 CR4: 0000000000771ef0
[   17.889513][  T189] PKRU: 55555554
[   17.889719][  T189] Call Trace:
[   17.889930][  T189]  <TASK>
[   17.890112][  T189]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   17.890341][  T189]  ? notifier_call_chain (kernel/notifier.c:85)
[   17.890571][  T189]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   17.890794][  T189]  register_netdevice (net/core/dev.c:11488)
[   17.891025][  T189]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   17.891292][  T189]  register_netdev (net/core/dev.c:11552)
[   17.891534][  T189]  sit_init_net (net/ipv6/sit.c:1860)
[   17.891803][  T189]  ops_init (net/core/net_namespace.c:137)
[   17.891999][  T189]  setup_net (net/core/net_namespace.c:446)
[   17.892143][  T189]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   17.892319][  T189]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   17.892498][  T189]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   17.892686][  T189]  copy_net_ns (net/core/net_namespace.c:579)
[   17.892879][  T189]  create_new_namespaces (kernel/nsproxy.c:132)
[   17.893072][  T189]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   17.893251][  T189]  ksys_unshare (kernel/fork.c:3243)
[   17.893428][  T189]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.893611][  T189]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   17.893801][  T189]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.893981][  T189]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   17.894160][  T189]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.894339][  T189]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   17.894528][  T189]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   17.894714][  T189]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   17.894907][  T189]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   17.895083][  T189]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   17.895261][  T189]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.895469][  T189] RIP: 0033:0x7fa0a8f22bcb
[   17.895659][  T189] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   17.896187][  T189] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   17.896428][  T189] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   17.896673][  T189] RDX: 00000000004063e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   17.896937][  T189] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   17.897178][  T189] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   17.897418][  T189] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   17.902591][  T189] ------------[ cut here ]------------
| [   17.902779][  T189] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/189
| [   17.903084][  T189] Modules linked in:
| [   17.903585][  T189] Tainted: [W]=WARN
[   17.903751][  T189] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.903960][  T189] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.904175][  T189] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   17.904704][  T189] RSP: 0018:ffa0000000557a78 EFLAGS: 00010286
[   17.905440][  T189] RAX: 00000000ffffffa6 RBX: ff1100000d340c80 RCX: 1ff40000000aaf15
[   17.905760][  T189] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d340d3c
[   17.906057][  T189] RBP: ff11000008dd1000 R08: 1fe2200001a681a9 R09: ff11000008ed5180
[   17.906366][  T189] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   17.906667][  T189] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008dd1000
[   17.906979][  T189] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   17.907319][  T189] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.907605][  T189] CR2: 00007fa0a8f22bc0 CR3: 0000000010be4002 CR4: 0000000000771ef0
[   17.907917][  T189] PKRU: 55555554
[   17.908127][  T189] Call Trace:
[   17.908325][  T189]  <TASK>
[   17.908493][  T189]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   17.908729][  T189]  ? notifier_call_chain (kernel/notifier.c:85)
[   17.909025][  T189]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   17.909226][  T189]  register_netdevice (net/core/dev.c:11488)
[   17.909476][  T189]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   17.909761][  T189]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.909998][  T189]  register_netdev (net/core/dev.c:11552)
[   17.910231][  T189]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   17.910464][  T189]  ops_init (net/core/net_namespace.c:137)
[   17.910670][  T189]  setup_net (net/core/net_namespace.c:446)
[   17.910883][  T189]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   17.911094][  T189]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   17.911270][  T189]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   17.911450][  T189]  copy_net_ns (net/core/net_namespace.c:579)
[   17.911636][  T189]  create_new_namespaces (kernel/nsproxy.c:132)
[   17.911831][  T189]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   17.912012][  T189]  ksys_unshare (kernel/fork.c:3243)
[   17.912190][  T189]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.912381][  T189]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   17.912558][  T189]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.912756][  T189]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   17.912936][  T189]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.913117][  T189]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   17.913294][  T189]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   17.913472][  T189]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   17.913670][  T189]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   17.913861][  T189]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   17.914040][  T189]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.914249][  T189] RIP: 0033:0x7fa0a8f22bcb
[   17.914433][  T189] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   17.914977][  T189] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   17.915220][  T189] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   17.915459][  T189] RDX: 00000000004063e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   17.915706][  T189] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   17.915971][  T189] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   17.916212][  T189] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   18.937274][   T12] ------------[ cut here ]------------
| [   18.937444][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   18.937701][   T12] Modules linked in:
| [   18.938094][   T12] Tainted: [W]=WARN
[   18.938189][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.938348][   T12] Workqueue: netns cleanup_net
[   18.938477][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   18.938640][   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
[   18.939080][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   18.939235][   T12] RAX: 00000000ffffffa6 RBX: ff1100000ab74e40 RCX: 1ff4000000018eed
[   18.939418][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ab74efc
[   18.939596][   T12] RBP: ff11000008dd1000 R08: 1fe220000156e9e1 R09: ff11000001aed1d0
[   18.949999][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   18.950205][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   18.950387][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   18.950594][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.950767][   T12] CR2: 00000000004090e8 CR3: 00000000108d9005 CR4: 0000000000771ef0
[   18.950950][   T12] PKRU: 55555554
[   18.951038][   T12] Call Trace:
[   18.951126][   T12]  <TASK>
[   18.951189][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   18.951343][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   18.951489][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   18.951614][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   18.951746][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   18.951863][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   18.951982][   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)
[   18.952107][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   18.952229][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   18.952346][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   18.952469][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   18.952587][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   18.952711][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   18.952834][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   18.952951][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   18.953074][   T12]  process_one_work (kernel/workqueue.c:3314)
[   18.953196][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   18.953313][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   18.953435][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   18.953557][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   18.953681][   T12]  kthread (kernel/kthread.c:436)
[   18.953775][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   18.953926][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   18.954047][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   18.954167][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   18.954314][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   18.954435][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   18.954555][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   18.956858][   T12] ------------[ cut here ]------------
| [   18.956978][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   18.957208][   T12] Modules linked in:
| [   18.957571][   T12] Tainted: [W]=WARN
[   18.957664][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.957819][   T12] Workqueue: netns cleanup_net
[   18.957949][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   18.958102][   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
[   18.958521][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   18.958673][   T12] RAX: 00000000ffffffa6 RBX: ff1100000ab75540 RCX: 1ff4000000018eed
[   18.958856][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ab755fc
[   18.959033][   T12] RBP: ff1100000a3c4000 R08: 1fe220000156eac1 R09: ff11000001aed1d0
[   18.959209][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   18.959384][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   18.959563][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   18.959780][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.959928][   T12] CR2: 00000000004090e8 CR3: 00000000108d9005 CR4: 0000000000771ef0
[   18.960105][   T12] PKRU: 55555554
[   18.960193][   T12] Call Trace:
[   18.960281][   T12]  <TASK>
[   18.960342][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   18.960498][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   18.960650][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   18.960774][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   18.960894][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   18.961012][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   18.961132][   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)
[   18.961253][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   18.961374][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   18.961491][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   18.961619][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   18.961745][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   18.961865][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   18.961985][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   18.962102][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   18.962222][   T12]  process_one_work (kernel/workqueue.c:3314)
[   18.962345][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   18.962463][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   18.962587][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   18.962712][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   18.962979][   T12]  kthread (kernel/kthread.c:436)
[   18.963070][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   18.963222][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   18.963340][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   18.963458][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   18.963611][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   18.963740][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   18.963857][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   18.974677][   T12] ------------[ cut here ]------------
| [   18.974812][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   18.975048][   T12] Modules linked in:
| [   18.975415][   T12] Tainted: [W]=WARN
[   18.975506][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.975659][   T12] Workqueue: netns cleanup_net
[   18.975789][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   18.975945][   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
[   18.976364][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   18.976515][   T12] RAX: 00000000ffffffa6 RBX: ff1100000ab75c40 RCX: 1ff4000000018eed
[   18.976696][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ab75cfc
[   18.976940][   T12] RBP: ff110000102b4000 R08: 1fe220000156eba1 R09: ff11000001aed1d0
[   18.977118][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   18.977295][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   18.977473][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   18.977695][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.977848][   T12] CR2: 00000000004090e8 CR3: 00000000108d9005 CR4: 0000000000771ef0
[   18.978025][   T12] PKRU: 55555554
[   18.978114][   T12] Call Trace:
[   18.978202][   T12]  <TASK>
[   18.978263][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   18.978412][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   18.978559][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   18.978680][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   18.978803][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   18.978921][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   18.979040][   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)
[   18.979163][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   18.979282][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   18.979400][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   18.979521][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   18.979640][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   18.979761][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   18.979882][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   18.980004][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   18.980122][   T12]  process_one_work (kernel/workqueue.c:3314)
[   18.980244][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   18.980363][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   18.980487][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   18.980612][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   18.980728][   T12]  kthread (kernel/kthread.c:436)
[   18.980824][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   18.980971][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   18.981089][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   18.981207][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   18.981352][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   18.981469][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   18.981587][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   18.983542][   T12] ------------[ cut here ]------------
| [   18.983664][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   18.983897][   T12] Modules linked in:
| [   18.984256][   T12] Tainted: [W]=WARN
[   18.984343][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.984489][   T12] Workqueue: netns cleanup_net
[   18.984612][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   18.985186][   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
[   18.985609][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   18.985761][   T12] RAX: 00000000ffffffa6 RBX: ff1100000cfbce40 RCX: 1ff4000000018eed
[   18.985935][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cfbcefc
[   18.986108][   T12] RBP: ff1100000a3bc000 R08: 1fe22000019f79e1 R09: ff11000001aed1d0
[   18.986282][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   18.986454][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   18.986638][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   18.986854][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.987005][   T12] CR2: 00000000004090e8 CR3: 00000000108d9005 CR4: 0000000000771ef0
[   18.987182][   T12] PKRU: 55555554
[   18.987269][   T12] Call Trace:
[   18.987355][   T12]  <TASK>
[   18.987416][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   18.987566][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   18.987712][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   18.987834][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   18.987954][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   18.988070][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   18.988187][   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)
[   18.988305][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   18.988423][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   18.988540][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   18.988663][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   18.988786][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   18.988909][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   18.989026][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   18.989144][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   18.989263][   T12]  process_one_work (kernel/workqueue.c:3314)
[   18.989383][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   18.989506][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   18.989630][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   18.989760][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   18.989876][   T12]  kthread (kernel/kthread.c:436)
[   18.989965][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   18.990111][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   18.990233][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   18.990354][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   18.990500][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   18.990621][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   18.990744][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   18.992677][   T12] ------------[ cut here ]------------
| [   18.992800][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   18.993047][   T12] Modules linked in:
| [   18.993405][   T12] Tainted: [W]=WARN
[   18.993494][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.993643][   T12] Workqueue: netns cleanup_net
[   18.993769][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   18.993921][   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
[   18.994346][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   18.994495][   T12] RAX: 00000000ffffffa6 RBX: ff1100000cfbcc80 RCX: 1ff4000000018eed
[   18.994673][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cfbcd3c
[   18.994853][   T12] RBP: ff1100000a3a4000 R08: 1fe22000019f79a9 R09: ff11000001aed1d0
[   18.995032][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   18.995205][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   18.995380][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   18.995582][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.995730][   T12] CR2: 00000000004090e8 CR3: 00000000108d9005 CR4: 0000000000771ef0
[   18.995912][   T12] PKRU: 55555554
[   18.996002][   T12] Call Trace:
[   18.996089][   T12]  <TASK>
[   18.996149][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   18.996299][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   18.996446][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   18.996563][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   18.996685][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   18.996805][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   18.996924][   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)
[   18.997045][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   18.997162][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   18.997281][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   18.997401][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   18.997525][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   18.997650][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   18.997773][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   18.997893][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   18.998016][   T12]  process_one_work (kernel/workqueue.c:3314)
[   18.998138][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   18.998254][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   18.998375][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   18.998497][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   18.998617][   T12]  kthread (kernel/kthread.c:436)
[   18.998707][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   18.998859][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   18.998980][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   18.999098][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   18.999244][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   18.999365][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   18.999482][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.013903][  T191] ------------[ cut here ]------------
| [   19.014048][  T191] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: scm_rights/191
| [   19.014305][  T191] Modules linked in:
| [   19.014710][  T191] Tainted: [W]=WARN
[   19.014812][  T191] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.014974][  T191] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.015143][  T191] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.015624][  T191] RSP: 0018:ffa0000000577a80 EFLAGS: 00010286
[   19.015792][  T191] RAX: 00000000ffffffa6 RBX: ff11000002834040 RCX: 1ff40000000aef16
[   19.015984][  T191] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000028340fc
[   19.016179][  T191] RBP: ff1100000a0d1000 R08: 1fe2200000506821 R09: ff11000010030b80
[   19.016372][  T191] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   19.016565][  T191] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a0d1000
[   19.016771][  T191] FS:  00007fa0a8e27740(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   19.016999][  T191] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.017164][  T191] CR2: 00007fa0a8f22bc0 CR3: 0000000010be4001 CR4: 0000000000771ef0
[   19.017360][  T191] PKRU: 55555554
[   19.017458][  T191] Call Trace:
[   19.017555][  T191]  <TASK>
[   19.017626][  T191]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.017762][  T191]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.017895][  T191]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.017995][  T191]  register_netdevice (net/core/dev.c:11488)
[   19.018127][  T191]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.018290][  T191]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   19.018423][  T191]  register_netdev (net/core/dev.c:11552)
[   19.018556][  T191]  loopback_net_init (drivers/net/loopback.c:218)
[   19.018690][  T191]  ops_init (net/core/net_namespace.c:137)
[   19.018795][  T191]  setup_net (net/core/net_namespace.c:446)
[   19.018896][  T191]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.019025][  T191]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.019154][  T191]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.019287][  T191]  copy_net_ns (net/core/net_namespace.c:579)
[   19.019419][  T191]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.019552][  T191]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.019687][  T191]  ksys_unshare (kernel/fork.c:3243)
[   19.019826][  T191]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.019959][  T191]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.020088][  T191]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.020218][  T191]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   19.020350][  T191]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.020482][  T191]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.020615][  T191]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.020749][  T191]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.020878][  T191]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.021009][  T191]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.021138][  T191]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.021300][  T191] RIP: 0033:0x7fa0a8f22bcb
[   19.021437][  T191] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.021911][  T191] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.022109][  T191] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   19.022306][  T191] RDX: 0000000000406420 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   19.022501][  T191] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   19.022705][  T191] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   19.022904][  T191] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   19.032983][   T12] ------------[ cut here ]------------
| [   19.033114][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   19.033348][   T12] Modules linked in:
| [   19.033709][   T12] Tainted: [W]=WARN
[   19.033888][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.034036][   T12] Workqueue: netns cleanup_net
[   19.034159][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.034312][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.034744][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   19.034893][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c4bec80 RCX: 1ff4000000018ed5
[   19.035068][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c4bed3c
[   19.035249][   T12] RBP: ff11000009cf4000 R08: 1fe2200001897da9 R09: ff11000001aed1d0
[   19.035431][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   19.035618][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   19.035802][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   19.036012][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.036162][   T12] CR2: 00000000004090e8 CR3: 00000000108d9005 CR4: 0000000000771ef0
[   19.036347][   T12] PKRU: 55555554
[   19.036437][   T12] Call Trace:
[   19.036527][   T12]  <TASK>
[   19.036589][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   19.036750][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.036904][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   19.037026][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   19.037146][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   19.037267][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   19.037386][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   19.037507][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   19.037632][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   19.037757][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.037880][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   19.037999][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.038116][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.038235][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.038354][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.038476][   T12]  process_one_work (kernel/workqueue.c:3314)
[   19.038602][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.038725][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.038853][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.038976][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.039095][   T12]  kthread (kernel/kthread.c:436)
[   19.039184][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.039331][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.039449][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.039567][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.039718][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.039841][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.039962][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.044537][  T191] ------------[ cut here ]------------
| [   19.044677][  T191] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: scm_rights/191
| [   19.044941][  T191] Modules linked in:
| [   19.045333][  T191] Tainted: [W]=WARN
[   19.045430][  T191] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.045592][  T191] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.045771][  T191] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.046230][  T191] RSP: 0018:ffa0000000577918 EFLAGS: 00010286
[   19.046393][  T191] RAX: 00000000ffffffa6 RBX: ff1100000e4ba580 RCX: 1ff40000000aeee9
[   19.046587][  T191] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e4ba63c
[   19.046792][  T191] RBP: ff11000008dc4000 R08: 1fe2200001c974c9 R09: ff11000010030b80
[   19.046985][  T191] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   19.047177][  T191] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008dc4000
[   19.047373][  T191] FS:  00007fa0a8e27740(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   19.047605][  T191] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.047772][  T191] CR2: 00007fa0a8f22bc0 CR3: 0000000010be4001 CR4: 0000000000771ef0
[   19.047966][  T191] PKRU: 55555554
[   19.048063][  T191] Call Trace:
[   19.048159][  T191]  <TASK>
[   19.048226][  T191]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.048356][  T191]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.048486][  T191]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.048584][  T191]  register_netdevice (net/core/dev.c:11488)
[   19.048718][  T191]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.048884][  T191]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   19.049015][  T191]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   19.049145][  T191]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   19.049275][  T191]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   19.049406][  T191]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   19.049535][  T191]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   19.049671][  T191]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   19.049813][  T191]  ops_init (net/core/net_namespace.c:137)
[   19.049912][  T191]  setup_net (net/core/net_namespace.c:446)
[   19.050010][  T191]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.050137][  T191]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.050267][  T191]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.050399][  T191]  copy_net_ns (net/core/net_namespace.c:579)
[   19.050529][  T191]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.050663][  T191]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.050799][  T191]  ksys_unshare (kernel/fork.c:3243)
[   19.050927][  T191]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.051055][  T191]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.051184][  T191]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.051312][  T191]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   19.051442][  T191]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.051572][  T191]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.051704][  T191]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.051839][  T191]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.051967][  T191]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.052094][  T191]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.052224][  T191]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.052384][  T191] RIP: 0033:0x7fa0a8f22bcb
[   19.052519][  T191] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.052983][  T191] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.053178][  T191] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   19.053370][  T191] RDX: 0000000000406420 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   19.053561][  T191] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   19.053763][  T191] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   19.053954][  T191] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   19.057695][  T191] ------------[ cut here ]------------
| [   19.057839][  T191] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: scm_rights/191
| [   19.058098][  T191] Modules linked in:
| [   19.058494][  T191] Tainted: [W]=WARN
[   19.058593][  T191] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.058769][  T191] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.058938][  T191] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.059401][  T191] RSP: 0018:ffa00000005778f8 EFLAGS: 00010286
[   19.059567][  T191] RAX: 00000000ffffffa6 RBX: ff1100000d089380 RCX: 1ff40000000aeee5
[   19.059777][  T191] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d08943c
[   19.059974][  T191] RBP: ff1100000fedc000 R08: 1fe2200001a11289 R09: ff11000010030b80
[   19.060169][  T191] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   19.060364][  T191] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fedc000
[   19.060562][  T191] FS:  00007fa0a8e27740(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   19.060803][  T191] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.060966][  T191] CR2: 00007fa0a8f22bc0 CR3: 0000000010be4001 CR4: 0000000000771ef0
[   19.061163][  T191] PKRU: 55555554
[   19.061261][  T191] Call Trace:
[   19.061358][  T191]  <TASK>
[   19.061428][  T191]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.061559][  T191]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.061697][  T191]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.061801][  T191]  register_netdevice (net/core/dev.c:11488)
[   19.061934][  T191]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.062096][  T191]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   19.062228][  T191]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   19.062362][  T191]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   19.062492][  T191]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   19.062628][  T191]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   19.062765][  T191]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   19.062897][  T191]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   19.063029][  T191]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   19.063162][  T191]  vti_init_net (net/ipv4/ip_vti.c:517)
[   19.063292][  T191]  ops_init (net/core/net_namespace.c:137)
[   19.063394][  T191]  setup_net (net/core/net_namespace.c:446)
[   19.063493][  T191]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.063627][  T191]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.063763][  T191]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.063895][  T191]  copy_net_ns (net/core/net_namespace.c:579)
[   19.064027][  T191]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.064160][  T191]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.064295][  T191]  ksys_unshare (kernel/fork.c:3243)
[   19.064425][  T191]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.064559][  T191]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.064691][  T191]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.064828][  T191]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   19.064960][  T191]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.065092][  T191]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.065225][  T191]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.065356][  T191]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.065485][  T191]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.065619][  T191]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.065754][  T191]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.065916][  T191] RIP: 0033:0x7fa0a8f22bcb
[   19.066053][  T191] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.066519][  T191] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.066720][  T191] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   19.066921][  T191] RDX: 0000000000406420 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   19.067118][  T191] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   19.067312][  T191] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   19.067508][  T191] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   19.072609][  T191] ------------[ cut here ]------------
| [   19.072748][  T191] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: scm_rights/191
| [   19.073005][  T191] Modules linked in:
| [   19.073405][  T191] Tainted: [W]=WARN
[   19.073505][  T191] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.073670][  T191] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.073843][  T191] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.074306][  T191] RSP: 0018:ffa0000000577a78 EFLAGS: 00010286
[   19.074469][  T191] RAX: 00000000ffffffa6 RBX: ff1100000d089e00 RCX: 1ff40000000aef15
[   19.074665][  T191] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d089ebc
[   19.074915][  T191] RBP: ff1100000f38c000 R08: 1fe2200001a113d9 R09: ff11000010030b80
[   19.075111][  T191] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   19.075302][  T191] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f38c000
[   19.075497][  T191] FS:  00007fa0a8e27740(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   19.075725][  T191] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.075942][  T191] CR2: 00007fa0a8f22bc0 CR3: 0000000010be4001 CR4: 0000000000771ef0
[   19.076137][  T191] PKRU: 55555554
[   19.076233][  T191] Call Trace:
[   19.076329][  T191]  <TASK>
[   19.076395][  T191]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.076524][  T191]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.076658][  T191]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.076813][  T191]  register_netdevice (net/core/dev.c:11488)
[   19.076945][  T191]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.077159][  T191]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.077291][  T191]  register_netdev (net/core/dev.c:11552)
[   19.077420][  T191]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   19.077551][  T191]  ops_init (net/core/net_namespace.c:137)
[   19.077654][  T191]  setup_net (net/core/net_namespace.c:446)
[   19.077809][  T191]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.077937][  T191]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.078067][  T191]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.078197][  T191]  copy_net_ns (net/core/net_namespace.c:579)
[   19.078328][  T191]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.078460][  T191]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.078588][  T191]  ksys_unshare (kernel/fork.c:3243)
[   19.078722][  T191]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.078907][  T191]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.079035][  T191]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.079164][  T191]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   19.079293][  T191]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.079423][  T191]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.079551][  T191]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.079684][  T191]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.079870][  T191]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.080000][  T191]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.080128][  T191]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.080285][  T191] RIP: 0033:0x7fa0a8f22bcb
[   19.080418][  T191] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.080939][  T191] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.081133][  T191] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   19.081324][  T191] RDX: 0000000000406420 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   19.081516][  T191] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   19.081710][  T191] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   19.081955][  T191] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   19.086169][  T191] ------------[ cut here ]------------
| [   19.086346][  T191] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/191
| [   19.086658][  T191] Modules linked in:
| [   19.087167][  T191] Tainted: [W]=WARN
[   19.087313][  T191] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.087521][  T191] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.087757][  T191] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.088270][  T191] RSP: 0018:ffa0000000577a68 EFLAGS: 00010286
[   19.088479][  T191] RAX: 00000000ffffffa6 RBX: ff11000010847000 RCX: 1ff40000000aef13
[   19.088724][  T191] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000108470bc
[   19.088977][  T191] RBP: ff1100000fa29000 R08: 1fe2200002108e19 R09: ff11000010030b80
[   19.089215][  T191] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   19.089457][  T191] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fa29000
[   19.089704][  T191] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   19.089989][  T191] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.090197][  T191] CR2: 00007fa0a8e9a0a0 CR3: 0000000010be4004 CR4: 0000000000771ef0
[   19.090440][  T191] PKRU: 55555554
[   19.090583][  T191] Call Trace:
[   19.090747][  T191]  <TASK>
[   19.090859][  T191]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.091035][  T191]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.091212][  T191]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.091358][  T191]  register_netdevice (net/core/dev.c:11488)
[   19.091536][  T191]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.091766][  T191]  register_netdev (net/core/dev.c:11552)
[   19.091946][  T191]  sit_init_net (net/ipv6/sit.c:1860)
[   19.092124][  T191]  ops_init (net/core/net_namespace.c:137)
[   19.092270][  T191]  setup_net (net/core/net_namespace.c:446)
[   19.092414][  T191]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.092589][  T191]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.092785][  T191]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.092967][  T191]  copy_net_ns (net/core/net_namespace.c:579)
[   19.093145][  T191]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.093324][  T191]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.093503][  T191]  ksys_unshare (kernel/fork.c:3243)
[   19.093687][  T191]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.093880][  T191]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.094055][  T191]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.094236][  T191]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   19.094413][  T191]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.094589][  T191]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.094786][  T191]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.094962][  T191]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.095138][  T191]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.095314][  T191]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.095494][  T191]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.095711][  T191] RIP: 0033:0x7fa0a8f22bcb
[   19.095907][  T191] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.096414][  T191] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.096663][  T191] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   19.096914][  T191] RDX: 0000000000406420 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   19.097151][  T191] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   19.097390][  T191] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   19.097635][  T191] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   19.102658][  T191] ------------[ cut here ]------------
| [   19.102841][  T191] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/191
| [   19.103147][  T191] Modules linked in:
| [   19.103638][  T191] Tainted: [W]=WARN
[   19.103795][  T191] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.104004][  T191] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.104219][  T191] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.104747][  T191] RSP: 0018:ffa0000000577a78 EFLAGS: 00010286
[   19.104955][  T191] RAX: 00000000ffffffa6 RBX: ff1100000d0f0900 RCX: 1ff40000000aef15
[   19.105194][  T191] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d0f09bc
[   19.105434][  T191] RBP: ff1100000f92c000 R08: 1fe2200001a1e139 R09: ff11000010030b80
[   19.105678][  T191] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   19.105929][  T191] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f92c000
[   19.106169][  T191] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   19.106447][  T191] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.106664][  T191] CR2: 00007fa0a8e9a0a0 CR3: 0000000010be4004 CR4: 0000000000771ef0
[   19.106916][  T191] PKRU: 55555554
[   19.107060][  T191] Call Trace:
[   19.107204][  T191]  <TASK>
[   19.107318][  T191]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.107496][  T191]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.107679][  T191]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.107839][  T191]  register_netdevice (net/core/dev.c:11488)
[   19.108020][  T191]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.108226][  T191]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.108407][  T191]  register_netdev (net/core/dev.c:11552)
[   19.108583][  T191]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   19.108781][  T191]  ops_init (net/core/net_namespace.c:137)
[   19.108930][  T191]  setup_net (net/core/net_namespace.c:446)
[   19.109075][  T191]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.109250][  T191]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.109428][  T191]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.109615][  T191]  copy_net_ns (net/core/net_namespace.c:579)
[   19.109807][  T191]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.109987][  T191]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.110166][  T191]  ksys_unshare (kernel/fork.c:3243)
[   19.110341][  T191]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.110518][  T191]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.110702][  T191]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.110888][  T191]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   19.111065][  T191]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.111243][  T191]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.111421][  T191]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.111608][  T191]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.111798][  T191]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.111974][  T191]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.112152][  T191]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.112358][  T191] RIP: 0033:0x7fa0a8f22bcb
[   19.112540][  T191] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.113071][  T191] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.113313][  T191] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   19.113553][  T191] RDX: 0000000000406420 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   19.113815][  T191] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   19.114054][  T191] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   19.114294][  T191] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   19.121407][   T12] ------------[ cut here ]------------
| [   19.121541][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   19.121805][   T12] Modules linked in:
| [   19.122168][   T12] Tainted: [W]=WARN
[   19.122255][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.122401][   T12] Workqueue: netns cleanup_net
[   19.131571][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.131771][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.132187][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   19.132335][   T12] RAX: 00000000ffffffa6 RBX: ff1100000d16c040 RCX: 1ff4000000018eed
[   19.132508][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d16c0fc
[   19.132687][   T12] RBP: ff1100000f92c000 R08: 1fe2200001a2d821 R09: ff11000001aed1d0
[   19.132874][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   19.133046][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   19.133221][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   19.133425][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.133572][   T12] CR2: 00000000004090e8 CR3: 00000000108d9005 CR4: 0000000000771ef0
[   19.133759][   T12] PKRU: 55555554
[   19.133845][   T12] Call Trace:
[   19.133931][   T12]  <TASK>
[   19.133992][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   19.134139][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.134284][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   19.134402][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   19.134520][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.134638][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   19.134762][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.134880][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   19.134997][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   19.135111][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.135230][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   19.135348][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.135462][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.135578][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.135698][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.135826][   T12]  process_one_work (kernel/workqueue.c:3314)
[   19.135948][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.136069][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.136193][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.136313][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.136429][   T12]  kthread (kernel/kthread.c:436)
[   19.136517][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.136671][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.136795][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.136911][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.137057][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.137173][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.137288][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.139431][   T12] ------------[ cut here ]------------
| [   19.139549][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   19.139869][   T12] Modules linked in:
| [   19.140220][   T12] Tainted: [W]=WARN
[   19.140307][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.140453][   T12] Workqueue: netns cleanup_net
[   19.140574][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.140728][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.141147][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   19.141294][   T12] RAX: 00000000ffffffa6 RBX: ff1100000d16c740 RCX: 1ff4000000018eed
[   19.141466][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d16c7fc
[   19.141641][   T12] RBP: ff1100000fa29000 R08: 1fe2200001a2d901 R09: ff11000001aed1d0
[   19.141820][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   19.141997][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   19.142170][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   19.142371][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.142517][   T12] CR2: 00000000004090e8 CR3: 00000000108d9005 CR4: 0000000000771ef0
[   19.142696][   T12] PKRU: 55555554
[   19.142789][   T12] Call Trace:
[   19.142876][   T12]  <TASK>
[   19.142937][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   19.143084][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.143228][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   19.143345][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   19.143463][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.143578][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   19.143699][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.143823][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   19.143942][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   19.144057][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.144177][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   19.144295][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.144411][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.144536][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.144658][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.144779][   T12]  process_one_work (kernel/workqueue.c:3314)
[   19.144899][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.145015][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.145135][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.145256][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.145372][   T12]  kthread (kernel/kthread.c:436)
[   19.145461][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.145610][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.145726][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.145848][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.145993][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.146108][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.146226][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.148340][   T12] ------------[ cut here ]------------
| [   19.148455][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   19.148687][   T12] Modules linked in:
| [   19.149155][   T12] Tainted: [W]=WARN
[   19.149242][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.149391][   T12] Workqueue: netns cleanup_net
[   19.149513][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.149668][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.150145][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   19.150291][   T12] RAX: 00000000ffffffa6 RBX: ff1100000d16ce40 RCX: 1ff4000000018eed
[   19.150473][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d16cefc
[   19.150650][   T12] RBP: ff1100000f38c000 R08: 1fe2200001a2d9e1 R09: ff11000001aed1d0
[   19.150905][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   19.151124][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   19.151301][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   19.151502][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.151653][   T12] CR2: 00000000004090e8 CR3: 00000000108d9005 CR4: 0000000000771ef0
[   19.151874][   T12] PKRU: 55555554
[   19.151961][   T12] Call Trace:
[   19.152047][   T12]  <TASK>
[   19.152108][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   19.152258][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.152403][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   19.152521][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   19.152642][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.152807][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   19.152925][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.153043][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   19.153163][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   19.153285][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.153407][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   19.153523][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.153647][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.153811][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.153928][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.154046][   T12]  process_one_work (kernel/workqueue.c:3314)
[   19.154169][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.154286][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.154409][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.154535][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.154659][   T12]  kthread (kernel/kthread.c:436)
[   19.154794][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.154941][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.155060][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.155177][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.155323][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.155440][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.155558][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.164747][   T12] ------------[ cut here ]------------
| [   19.164883][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   19.165118][   T12] Modules linked in:
| [   19.165478][   T12] Tainted: [W]=WARN
[   19.165567][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.165719][   T12] Workqueue: netns cleanup_net
[   19.165850][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.166002][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.166417][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   19.166569][   T12] RAX: 00000000ffffffa6 RBX: ff1100000bc583c0 RCX: 1ff4000000018eed
[   19.166755][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bc5847c
[   19.166930][   T12] RBP: ff1100000fedc000 R08: 1fe220000178b091 R09: ff11000001aed1d0
[   19.167108][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   19.167281][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   19.167458][   T12] FS:  0000000000000000(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   19.167673][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.167826][   T12] CR2: 00007fa0a8f22bc0 CR3: 0000000010be4004 CR4: 0000000000771ef0
[   19.168008][   T12] PKRU: 55555554
[   19.168095][   T12] Call Trace:
[   19.168188][   T12]  <TASK>
[   19.168250][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   19.168399][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.168546][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   19.168665][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   19.168794][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.168912][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   19.169029][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.169147][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   19.169267][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   19.169383][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.169505][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   19.169630][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.169756][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.169873][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.169991][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.170115][   T12]  process_one_work (kernel/workqueue.c:3314)
[   19.170240][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.170356][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.170477][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.170603][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.170725][   T12]  kthread (kernel/kthread.c:436)
[   19.170901][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.171049][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.171165][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.171284][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.171430][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.171549][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.171669][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.174064][   T12] ------------[ cut here ]------------
| [   19.174183][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   19.174412][   T12] Modules linked in:
| [   19.174779][   T12] Tainted: [W]=WARN
[   19.174866][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.175015][   T12] Workqueue: netns cleanup_net
[   19.175137][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.175293][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.175715][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   19.175873][   T12] RAX: 00000000ffffffa6 RBX: ff1100000bc58040 RCX: 1ff4000000018eed
[   19.176048][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bc580fc
[   19.176227][   T12] RBP: ff11000008dc4000 R08: 1fe220000178b021 R09: ff11000001aed1d0
[   19.176401][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   19.176579][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   19.176772][   T12] FS:  0000000000000000(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   19.176976][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.177121][   T12] CR2: 00007fa0a8f22bc0 CR3: 0000000010be4004 CR4: 0000000000771ef0
[   19.177301][   T12] PKRU: 55555554
[   19.177389][   T12] Call Trace:
[   19.177477][   T12]  <TASK>
[   19.177538][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   19.177690][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.177841][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   19.177959][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   19.178081][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.178198][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   19.178320][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.178440][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   19.178558][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   19.178678][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.178803][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   19.178921][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.179038][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.179157][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.179280][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.179399][   T12]  process_one_work (kernel/workqueue.c:3314)
[   19.179521][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.179646][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.179771][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.179897][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.180012][   T12]  kthread (kernel/kthread.c:436)
[   19.180100][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.180245][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.180366][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.180483][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.180633][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.180758][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.180875][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.189115][  T193] ------------[ cut here ]------------
| [   19.189260][  T193] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: scm_rights/193
| [   19.189522][  T193] Modules linked in:
| [   19.189936][  T193] Tainted: [W]=WARN
[   19.190035][  T193] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.190198][  T193] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.190370][  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
[   19.190846][  T193] RSP: 0018:ffa00000005d7a80 EFLAGS: 00010286
[   19.191013][  T193] RAX: 00000000ffffffa6 RBX: ff1100000c4be580 RCX: 1ff40000000baf16
[   19.191209][  T193] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c4be63c
[   19.191405][  T193] RBP: ff1100000902c000 R08: 1fe2200001897cc9 R09: ff11000010142e80
[   19.191604][  T193] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   19.191808][  T193] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000902c000
[   19.192007][  T193] FS:  00007fa0a8e27740(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   19.192240][  T193] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.192404][  T193] CR2: 00000000004090e8 CR3: 0000000010be4006 CR4: 0000000000771ef0
[   19.192605][  T193] PKRU: 55555554
[   19.192705][  T193] Call Trace:
[   19.192809][  T193]  <TASK>
[   19.192877][  T193]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.193013][  T193]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.193146][  T193]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.193245][  T193]  register_netdevice (net/core/dev.c:11488)
[   19.193376][  T193]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.193539][  T193]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   19.193677][  T193]  register_netdev (net/core/dev.c:11552)
[   19.193811][  T193]  loopback_net_init (drivers/net/loopback.c:218)
[   19.193943][  T193]  ops_init (net/core/net_namespace.c:137)
[   19.194044][  T193]  setup_net (net/core/net_namespace.c:446)
[   19.194143][  T193]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.194274][  T193]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.194405][  T193]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.194537][  T193]  copy_net_ns (net/core/net_namespace.c:579)
[   19.194674][  T193]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.194815][  T193]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.194951][  T193]  ksys_unshare (kernel/fork.c:3243)
[   19.195084][  T193]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.195215][  T193]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.195345][  T193]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.195475][  T193]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   19.195613][  T193]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.195749][  T193]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.195879][  T193]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.196011][  T193]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.196142][  T193]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.196274][  T193]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.196406][  T193]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.196568][  T193] RIP: 0033:0x7fa0a8f22bcb
[   19.196709][  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
[   19.197235][  T193] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.197430][  T193] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   19.197629][  T193] RDX: 0000000000406420 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   19.197833][  T193] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   19.198034][  T193] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   19.198230][  T193] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   19.202412][  T193] ------------[ cut here ]------------
| [   19.202547][  T193] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: scm_rights/193
| [   19.202812][  T193] Modules linked in:
| [   19.203209][  T193] Tainted: [W]=WARN
[   19.203308][  T193] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.203471][  T193] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.203645][  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
[   19.204113][  T193] RSP: 0018:ffa00000005d7918 EFLAGS: 00010286
[   19.204275][  T193] RAX: 00000000ffffffa6 RBX: ff1100000e4fbe00 RCX: 1ff40000000baee9
[   19.204469][  T193] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e4fbebc
[   19.204665][  T193] RBP: ff1100000f861000 R08: 1fe2200001c9f7d9 R09: ff11000010142e80
[   19.204863][  T193] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   19.205057][  T193] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f861000
[   19.205251][  T193] FS:  00007fa0a8e27740(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   19.205476][  T193] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.205643][  T193] CR2: 00000000004090e8 CR3: 0000000010be4006 CR4: 0000000000771ef0
[   19.205843][  T193] PKRU: 55555554
[   19.205939][  T193] Call Trace:
[   19.206038][  T193]  <TASK>
[   19.206105][  T193]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.206234][  T193]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.206363][  T193]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.206461][  T193]  register_netdevice (net/core/dev.c:11488)
[   19.206591][  T193]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.206765][  T193]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   19.206897][  T193]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   19.207028][  T193]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   19.207157][  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))
[   19.207287][  T193]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   19.207420][  T193]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   19.207553][  T193]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   19.207690][  T193]  ops_init (net/core/net_namespace.c:137)
[   19.207796][  T193]  setup_net (net/core/net_namespace.c:446)
[   19.207896][  T193]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.208024][  T193]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.208153][  T193]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.208284][  T193]  copy_net_ns (net/core/net_namespace.c:579)
[   19.208414][  T193]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.208547][  T193]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.208680][  T193]  ksys_unshare (kernel/fork.c:3243)
[   19.208811][  T193]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.208940][  T193]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.209069][  T193]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.209199][  T193]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   19.209330][  T193]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.209462][  T193]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.209592][  T193]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.209725][  T193]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.210357][  T193]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.210488][  T193]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.210621][  T193]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.210837][  T193] RIP: 0033:0x7fa0a8f22bcb
[   19.210974][  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
[   19.211433][  T193] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.211631][  T193] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   19.211879][  T193] RDX: 0000000000406420 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   19.212129][  T193] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   19.212322][  T193] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   19.212516][  T193] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   19.215490][   T12] ------------[ cut here ]------------
| [   19.215624][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   19.215864][   T12] Modules linked in:
| [   19.216225][   T12] Tainted: [W]=WARN
[   19.216313][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.216460][   T12] Workqueue: netns cleanup_net
[   19.216583][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.216747][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.217171][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   19.217324][   T12] RAX: 00000000ffffffa6 RBX: ff110000096978c0 RCX: 1ff4000000018ed5
[   19.217500][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000969797c
[   19.217681][   T12] RBP: ff1100000a0d1000 R08: 1fe22000012d2f31 R09: ff11000001aed1d0
[   19.217863][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   19.218039][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   19.218217][   T12] FS:  0000000000000000(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   19.218424][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.218572][   T12] CR2: 00007fa0a8f22bc0 CR3: 0000000010be4004 CR4: 0000000000771ef0
[   19.218766][   T12] PKRU: 55555554
[   19.218856][   T12] Call Trace:
[   19.218944][   T12]  <TASK>
[   19.219006][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   19.219158][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.219310][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   19.219437][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   19.219558][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   19.219681][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   19.219809][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   19.219929][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   19.220050][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   19.220174][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.220296][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   19.220415][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.220532][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.220655][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.220777][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.220898][   T12]  process_one_work (kernel/workqueue.c:3314)
[   19.221019][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.221139][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.221262][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.221384][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.221503][   T12]  kthread (kernel/kthread.c:436)
[   19.221593][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.221749][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.221867][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.221986][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.222133][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.222251][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.222368][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.226603][  T193] ------------[ cut here ]------------
| [   19.226748][  T193] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: scm_rights/193
| [   19.227006][  T193] Modules linked in:
| [   19.227402][  T193] Tainted: [W]=WARN
[   19.227502][  T193] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.227670][  T193] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.227852][  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
[   19.228320][  T193] RSP: 0018:ffa00000005d78f8 EFLAGS: 00010286
[   19.228487][  T193] RAX: 00000000ffffffa6 RBX: ff1100000e4fae40 RCX: 1ff40000000baee5
[   19.228687][  T193] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e4faefc
[   19.228904][  T193] RBP: ff1100000f8e9000 R08: 1fe2200001c9f5e1 R09: ff11000010142e80
[   19.229101][  T193] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   19.229298][  T193] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f8e9000
[   19.229496][  T193] FS:  00007fa0a8e27740(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   19.229728][  T193] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.229898][  T193] CR2: 00000000004090e8 CR3: 0000000010be4006 CR4: 0000000000771ef0
[   19.230097][  T193] PKRU: 55555554
[   19.230194][  T193] Call Trace:
[   19.230293][  T193]  <TASK>
[   19.230360][  T193]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.230491][  T193]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.230627][  T193]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.230728][  T193]  register_netdevice (net/core/dev.c:11488)
[   19.230866][  T193]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.231030][  T193]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   19.231164][  T193]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   19.231295][  T193]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   19.231427][  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))
[   19.231560][  T193]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   19.231695][  T193]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   19.231835][  T193]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   19.231970][  T193]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   19.232103][  T193]  vti_init_net (net/ipv4/ip_vti.c:517)
[   19.232235][  T193]  ops_init (net/core/net_namespace.c:137)
[   19.232335][  T193]  setup_net (net/core/net_namespace.c:446)
[   19.232434][  T193]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.232565][  T193]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.232701][  T193]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.232839][  T193]  copy_net_ns (net/core/net_namespace.c:579)
[   19.232974][  T193]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.233107][  T193]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.233239][  T193]  ksys_unshare (kernel/fork.c:3243)
[   19.233369][  T193]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.233499][  T193]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.233634][  T193]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.233771][  T193]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   19.233906][  T193]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.234038][  T193]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.234169][  T193]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.234299][  T193]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.234430][  T193]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.234561][  T193]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.234697][  T193]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.234865][  T193] RIP: 0033:0x7fa0a8f22bcb
[   19.235004][  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
[   19.235471][  T193] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.235672][  T193] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   19.235876][  T193] RDX: 0000000000406420 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   19.236071][  T193] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   19.236266][  T193] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   19.236462][  T193] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   19.245444][  T193] ------------[ cut here ]------------
| [   19.245584][  T193] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: scm_rights/193
| [   19.245855][  T193] Modules linked in:
| [   19.246251][  T193] Tainted: [W]=WARN
[   19.246350][  T193] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.246513][  T193] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.246687][  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
[   19.247154][  T193] RSP: 0018:ffa00000005d7a78 EFLAGS: 00010286
[   19.247318][  T193] RAX: 00000000ffffffa6 RBX: ff1100000e4fa040 RCX: 1ff40000000baf15
[   19.247516][  T193] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e4fa0fc
[   19.247713][  T193] RBP: ff1100000fa49000 R08: 1fe2200001c9f421 R09: ff11000010142e80
[   19.247914][  T193] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   19.248111][  T193] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fa49000
[   19.248310][  T193] FS:  00007fa0a8e27740(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   19.248541][  T193] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.248710][  T193] CR2: 00000000004090e8 CR3: 0000000010be4006 CR4: 0000000000771ef0
[   19.248911][  T193] PKRU: 55555554
[   19.249011][  T193] Call Trace:
[   19.249112][  T193]  <TASK>
[   19.249180][  T193]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.249311][  T193]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.249442][  T193]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.249541][  T193]  register_netdevice (net/core/dev.c:11488)
[   19.249677][  T193]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.249843][  T193]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.249979][  T193]  register_netdev (net/core/dev.c:11552)
[   19.250112][  T193]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   19.250245][  T193]  ops_init (net/core/net_namespace.c:137)
[   19.250344][  T193]  setup_net (net/core/net_namespace.c:446)
[   19.250443][  T193]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.250574][  T193]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.250707][  T193]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.250843][  T193]  copy_net_ns (net/core/net_namespace.c:579)
[   19.250975][  T193]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.251108][  T193]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.251239][  T193]  ksys_unshare (kernel/fork.c:3243)
[   19.251367][  T193]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.251497][  T193]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.251630][  T193]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.251767][  T193]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   19.251899][  T193]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.252031][  T193]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.252161][  T193]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.252291][  T193]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.252421][  T193]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.252551][  T193]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.252685][  T193]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.252854][  T193] RIP: 0033:0x7fa0a8f22bcb
[   19.252991][  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
[   19.253458][  T193] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.253658][  T193] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   19.253858][  T193] RDX: 0000000000406420 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   19.254052][  T193] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   19.254247][  T193] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   19.254441][  T193] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   19.258474][  T193] ------------[ cut here ]------------
| [   19.258612][  T193] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: scm_rights/193
| [   19.258873][  T193] Modules linked in:
| [   19.259267][  T193] Tainted: [W]=WARN
[   19.259366][  T193] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.259529][  T193] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.259702][  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
[   19.260171][  T193] RSP: 0018:ffa00000005d7a68 EFLAGS: 00010286
[   19.260334][  T193] RAX: 00000000ffffffa6 RBX: ff1100000e4f9000 RCX: 1ff40000000baf13
[   19.260530][  T193] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e4f90bc
[   19.260729][  T193] RBP: ff1100000fac1000 R08: 1fe2200001c9f219 R09: ff11000010142e80
[   19.260929][  T193] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   19.261123][  T193] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fac1000
[   19.261319][  T193] FS:  00007fa0a8e27740(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   19.261547][  T193] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.261713][  T193] CR2: 00000000004090e8 CR3: 0000000010be4006 CR4: 0000000000771ef0
[   19.261913][  T193] PKRU: 55555554
[   19.262012][  T193] Call Trace:
[   19.262110][  T193]  <TASK>
[   19.262177][  T193]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.262309][  T193]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.262441][  T193]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.262541][  T193]  register_netdevice (net/core/dev.c:11488)
[   19.262677][  T193]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.262847][  T193]  register_netdev (net/core/dev.c:11552)
[   19.262977][  T193]  sit_init_net (net/ipv6/sit.c:1860)
[   19.263110][  T193]  ops_init (net/core/net_namespace.c:137)
[   19.263209][  T193]  setup_net (net/core/net_namespace.c:446)
[   19.263309][  T193]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.263440][  T193]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.263571][  T193]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.263708][  T193]  copy_net_ns (net/core/net_namespace.c:579)
[   19.263844][  T193]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.263977][  T193]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.264109][  T193]  ksys_unshare (kernel/fork.c:3243)
[   19.264239][  T193]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.264372][  T193]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.264502][  T193]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.264638][  T193]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   19.264775][  T193]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.264907][  T193]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.265037][  T193]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.265168][  T193]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.265299][  T193]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.265429][  T193]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.265561][  T193]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.265729][  T193] RIP: 0033:0x7fa0a8f22bcb
[   19.265870][  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
[   19.266340][  T193] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.266537][  T193] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   19.266741][  T193] RDX: 0000000000406420 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   19.266938][  T193] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   19.267137][  T193] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   19.267332][  T193] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   19.271959][  T193] ------------[ cut here ]------------
| [   19.272099][  T193] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: scm_rights/193
| [   19.272358][  T193] Modules linked in:
| [   19.272768][  T193] Tainted: [W]=WARN
[   19.272868][  T193] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.273033][  T193] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.273205][  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
[   19.273676][  T193] RSP: 0018:ffa00000005d7a78 EFLAGS: 00010286
[   19.273846][  T193] RAX: 00000000ffffffa6 RBX: ff1100000be5cac0 RCX: 1ff40000000baf15
[   19.274044][  T193] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000be5cb7c
[   19.274240][  T193] RBP: ff11000009411000 R08: 1fe22000017cb971 R09: ff11000010142e80
[   19.274437][  T193] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   19.274730][  T193] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009411000
[   19.274935][  T193] FS:  00007fa0a8e27740(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   19.275254][  T193] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.275420][  T193] CR2: 00000000004090e8 CR3: 0000000010be4006 CR4: 0000000000771ef0
[   19.275622][  T193] PKRU: 55555554
[   19.275721][  T193] Call Trace:
[   19.275827][  T193]  <TASK>
[   19.275894][  T193]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.276027][  T193]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.276159][  T193]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.276261][  T193]  register_netdevice (net/core/dev.c:11488)
[   19.276482][  T193]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.276650][  T193]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.276791][  T193]  register_netdev (net/core/dev.c:11552)
[   19.276924][  T193]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   19.277146][  T193]  ops_init (net/core/net_namespace.c:137)
[   19.277247][  T193]  setup_net (net/core/net_namespace.c:446)
[   19.277346][  T193]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.277477][  T193]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.277700][  T193]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.277840][  T193]  copy_net_ns (net/core/net_namespace.c:579)
[   19.277974][  T193]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.278107][  T193]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.278329][  T193]  ksys_unshare (kernel/fork.c:3243)
[   19.278459][  T193]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.278589][  T193]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.278722][  T193]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.278948][  T193]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   19.279080][  T193]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.279212][  T193]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.279342][  T193]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.279561][  T193]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.279697][  T193]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.279834][  T193]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.279966][  T193]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.280215][  T193] RIP: 0033:0x7fa0a8f22bcb
[   19.280351][  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
[   19.280922][  T193] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.281121][  T193] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   19.281404][  T193] RDX: 0000000000406420 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   19.281605][  T193] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   19.281807][  T193] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   19.282091][  T193] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   19.317320][  T195] ------------[ cut here ]------------
| [   19.317469][  T195] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/195
| [   19.317738][  T195] Modules linked in:
| [   19.318140][  T195] Tainted: [W]=WARN
[   19.318240][  T195] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.318404][  T195] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.318575][  T195] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.319048][  T195] RSP: 0018:ffa0000000557a80 EFLAGS: 00010286
[   19.319215][  T195] RAX: 00000000ffffffa6 RBX: ff1100000cfc58c0 RCX: 1ff40000000aaf16
[   19.319414][  T195] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cfc597c
[   19.319612][  T195] RBP: ff1100000a8cc000 R08: 1fe22000019f8b31 R09: ff110000101dd180
[   19.319811][  T195] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   19.320009][  T195] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a8cc000
[   19.320211][  T195] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   19.320445][  T195] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.320612][  T195] CR2: 00007fa0a8f22bc0 CR3: 000000000e5cc005 CR4: 0000000000771ef0
[   19.320816][  T195] PKRU: 55555554
[   19.320917][  T195] Call Trace:
[   19.321016][  T195]  <TASK>
[   19.321086][  T195]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.321217][  T195]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.321350][  T195]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.321451][  T195]  register_netdevice (net/core/dev.c:11488)
[   19.321583][  T195]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.321756][  T195]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   19.321888][  T195]  register_netdev (net/core/dev.c:11552)
[   19.322019][  T195]  loopback_net_init (drivers/net/loopback.c:218)
[   19.322152][  T195]  ops_init (net/core/net_namespace.c:137)
[   19.322252][  T195]  setup_net (net/core/net_namespace.c:446)
[   19.322352][  T195]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.322484][  T195]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.322620][  T195]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.322769][  T195]  copy_net_ns (net/core/net_namespace.c:579)
[   19.322903][  T195]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.323040][  T195]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.323172][  T195]  ksys_unshare (kernel/fork.c:3243)
[   19.323303][  T195]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.323433][  T195]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.323562][  T195]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.323701][  T195]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   19.323838][  T195]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.323970][  T195]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.324099][  T195]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.324228][  T195]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.324357][  T195]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.324488][  T195]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.324623][  T195]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.324790][  T195] RIP: 0033:0x7fa0a8f22bcb
[   19.324926][  T195] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.325390][  T195] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.325590][  T195] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   19.325792][  T195] RDX: 0000000000406420 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   19.325986][  T195] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   19.326179][  T195] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   19.326375][  T195] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   19.330630][  T195] ------------[ cut here ]------------
| [   19.330829][  T195] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/195
| [   19.331121][  T195] Modules linked in:
| [   19.331511][  T195] Tainted: [W]=WARN
[   19.331612][  T195] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.331778][  T195] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.331948][  T195] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.332407][  T195] RSP: 0018:ffa0000000557918 EFLAGS: 00010286
[   19.332570][  T195] RAX: 00000000ffffffa6 RBX: ff1100000ba92200 RCX: 1ff40000000aaee9
[   19.332776][  T195] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ba922bc
[   19.332969][  T195] RBP: ff1100000e7ac000 R08: 1fe2200001752459 R09: ff110000101dd180
[   19.333163][  T195] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   19.333355][  T195] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e7ac000
[   19.333552][  T195] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   19.333783][  T195] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.333945][  T195] CR2: 00007fa0a8f22bc0 CR3: 000000000e5cc005 CR4: 0000000000771ef0
[   19.334139][  T195] PKRU: 55555554
[   19.334236][  T195] Call Trace:
[   19.334333][  T195]  <TASK>
[   19.334400][  T195]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.334530][  T195]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.334665][  T195]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.334769][  T195]  register_netdevice (net/core/dev.c:11488)
[   19.334899][  T195]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.335060][  T195]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   19.335191][  T195]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   19.335320][  T195]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   19.335452][  T195]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   19.335584][  T195]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   19.335719][  T195]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   19.335857][  T195]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   19.335987][  T195]  ops_init (net/core/net_namespace.c:137)
[   19.336088][  T195]  setup_net (net/core/net_namespace.c:446)
[   19.336186][  T195]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.336316][  T195]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.336446][  T195]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.336576][  T195]  copy_net_ns (net/core/net_namespace.c:579)
[   19.336710][  T195]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.336845][  T195]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.336976][  T195]  ksys_unshare (kernel/fork.c:3243)
[   19.337109][  T195]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.337240][  T195]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.337368][  T195]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.337499][  T195]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   19.337634][  T195]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.337770][  T195]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.337898][  T195]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.338027][  T195]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.338156][  T195]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.338288][  T195]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.338418][  T195]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.338580][  T195] RIP: 0033:0x7fa0a8f22bcb
[   19.338720][  T195] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.339188][  T195] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.339382][  T195] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   19.339574][  T195] RDX: 0000000000406420 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   19.339776][  T195] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   19.339970][  T195] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   19.340163][  T195] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   19.342054][   T12] ------------[ cut here ]------------
| [   19.342220][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   19.342496][   T12] Modules linked in:
| [   19.342964][   T12] Tainted: [W]=WARN
[   19.343097][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.343291][   T12] Workqueue: netns cleanup_net
[   19.343459][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.343665][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.344138][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   19.344331][   T12] RAX: 00000000ffffffa6 RBX: ff110000029c9a80 RCX: 1ff4000000018eed
[   19.344549][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000029c9b3c
[   19.344792][   T12] RBP: ff11000009411000 R08: 1fe2200000539369 R09: ff11000001aed1d0
[   19.345010][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   19.345231][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   19.345452][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   19.345707][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.345924][   T12] CR2: 00007fa0a8e9a0a0 CR3: 0000000004be8005 CR4: 0000000000771ef0
[   19.346148][   T12] PKRU: 55555554
[   19.346290][   T12] Call Trace:
[   19.346424][   T12]  <TASK>
[   19.346530][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   19.346747][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.346938][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   19.347102][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   19.347269][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.347433][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   19.347607][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.347787][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   19.347953][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   19.348115][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.348280][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   19.348446][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.348614][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.348797][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.348961][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.349127][   T12]  process_one_work (kernel/workqueue.c:3314)
[   19.349294][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.349457][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.349631][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.349813][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.349977][   T12]  kthread (kernel/kthread.c:436)
[   19.350114][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.350305][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.350470][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.350642][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.350897][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.351107][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.351379][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.353934][   T12] ------------[ cut here ]------------
| [   19.354094][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   19.354370][   T12] Modules linked in:
| [   19.354841][   T12] Tainted: [W]=WARN
[   19.354974][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.355173][   T12] Workqueue: netns cleanup_net
[   19.355339][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.355539][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.356014][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   19.356208][   T12] RAX: 00000000ffffffa6 RBX: ff110000029c9380 RCX: 1ff4000000018eed
[   19.356428][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000029c943c
[   19.356653][   T12] RBP: ff1100000fac1000 R08: 1fe2200000539289 R09: ff11000001aed1d0
[   19.356883][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   19.357103][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   19.357328][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   19.357578][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.357788][   T12] CR2: 00007fa0a8e9a0a0 CR3: 0000000004be8005 CR4: 0000000000771ef0
[   19.358011][   T12] PKRU: 55555554
[   19.358145][   T12] Call Trace:
[   19.358278][   T12]  <TASK>
[   19.358386][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   19.358586][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.358799][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   19.358964][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   19.359130][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.359293][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   19.359457][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.359627][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   19.359811][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   19.359976][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.360142][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   19.360307][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.360470][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.360642][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.360819][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.360985][   T12]  process_one_work (kernel/workqueue.c:3314)
[   19.361154][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.361318][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.361488][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.361665][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.361840][   T12]  kthread (kernel/kthread.c:436)
[   19.361976][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.362169][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.362337][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.362502][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.362702][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.362878][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.363041][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.365545][   T12] ------------[ cut here ]------------
| [   19.365713][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   19.366459][   T12] Modules linked in:
| [   19.367027][   T12] Tainted: [W]=WARN
[   19.367207][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.367445][   T12] Workqueue: netns cleanup_net
[   19.367666][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.367926][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.368434][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   19.368677][   T12] RAX: 00000000ffffffa6 RBX: ff110000029c8c80 RCX: 1ff4000000018eed
[   19.368956][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000029c8d3c
[   19.369223][   T12] RBP: ff1100000fa49000 R08: 1fe22000005391a9 R09: ff11000001aed1d0
[   19.369486][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   19.369771][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   19.370038][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   19.370333][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.370573][   T12] CR2: 00007fa0a8e9a0a0 CR3: 0000000004be8005 CR4: 0000000000771ef0
[   19.370858][   T12] PKRU: 55555554
[   19.371035][   T12] Call Trace:
[   19.371211][   T12]  <TASK>
[   19.371362][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   19.371636][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.371924][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   19.372192][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   19.372444][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.372700][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   19.372964][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.373219][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   19.373471][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   19.373722][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.373928][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   19.374091][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.374253][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.374420][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.374583][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.374770][   T12]  process_one_work (kernel/workqueue.c:3314)
[   19.374939][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.375103][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.375273][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.375443][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.375615][   T12]  kthread (kernel/kthread.c:436)
[   19.375762][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.375955][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.376120][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.376287][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.376482][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.376655][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.376833][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.379183][   T12] ------------[ cut here ]------------
| [   19.379342][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   19.379623][   T12] Modules linked in:
| [   19.380585][   T12] Tainted: [W]=WARN
[   19.380788][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.381024][   T12] Workqueue: netns cleanup_net
[   19.381238][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.381480][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.382006][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   19.382244][   T12] RAX: 00000000ffffffa6 RBX: ff110000029c8900 RCX: 1ff4000000018eed
[   19.382507][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000029c89bc
[   19.382786][   T12] RBP: ff1100000f8e9000 R08: 1fe2200000539139 R09: ff11000001aed1d0
[   19.383049][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   19.383314][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   19.383578][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   19.383889][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.384126][   T12] CR2: 00007fa0a8e9a0a0 CR3: 0000000004be8005 CR4: 0000000000771ef0
[   19.384392][   T12] PKRU: 55555554
[   19.384567][   T12] Call Trace:
[   19.384765][   T12]  <TASK>
[   19.384922][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   19.385159][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.385348][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   19.385513][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   19.385687][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.385865][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   19.386029][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.386196][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   19.386360][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   19.386522][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.386696][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   19.386872][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.387032][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.387199][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.387362][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.387526][   T12]  process_one_work (kernel/workqueue.c:3314)
[   19.387701][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.387872][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.388039][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.388206][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.388371][   T12]  kthread (kernel/kthread.c:436)
[   19.388507][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.388702][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.388876][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.389040][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.389232][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.389395][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.389562][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.391906][   T12] ------------[ cut here ]------------
| [   19.392026][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   19.392255][   T12] Modules linked in:
| [   19.392613][   T12] Tainted: [W]=WARN
[   19.392701][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.392856][   T12] Workqueue: netns cleanup_net
[   19.392979][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.393130][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.393550][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   19.393700][   T12] RAX: 00000000ffffffa6 RBX: ff11000009850900 RCX: 1ff4000000018eed
[   19.393882][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000098509bc
[   19.394056][   T12] RBP: ff1100000f861000 R08: 1fe220000130a139 R09: ff11000001aed1d0
[   19.394229][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   19.394401][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   19.394582][   T12] FS:  0000000000000000(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   19.394794][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.394940][   T12] CR2: 00007fa0a8f22bc0 CR3: 000000000e5cc005 CR4: 0000000000771ef0
[   19.395115][   T12] PKRU: 55555554
[   19.395203][   T12] Call Trace:
[   19.395291][   T12]  <TASK>
[   19.395353][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   19.395502][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.395651][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   19.395774][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   19.395892][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.396011][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   19.396129][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.396249][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   19.396371][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   19.396489][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.396612][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   19.396738][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.396856][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.396974][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.397092][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.397211][   T12]  process_one_work (kernel/workqueue.c:3314)
[   19.397330][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.397445][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.397566][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.397690][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.397813][   T12]  kthread (kernel/kthread.c:436)
[   19.397901][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.398046][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.398192][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.398308][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.398455][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.398572][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.398692][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.409782][  T195] ------------[ cut here ]------------
| [   19.409930][  T195] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: scm_rights/195
| [   19.410190][  T195] Modules linked in:
| [   19.410587][  T195] Tainted: [W]=WARN
[   19.410689][  T195] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.410868][  T195] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.411041][  T195] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.411515][  T195] RSP: 0018:ffa00000005578f8 EFLAGS: 00010286
[   19.411687][  T195] RAX: 00000000ffffffa6 RBX: ff1100000be5c3c0 RCX: 1ff40000000aaee5
[   19.411889][  T195] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000be5c47c
[   19.412083][  T195] RBP: ff1100000f35c000 R08: 1fe22000017cb891 R09: ff110000101dd180
[   19.412279][  T195] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   19.412472][  T195] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f35c000
[   19.412676][  T195] FS:  00007fa0a8e27740(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   19.412914][  T195] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.413078][  T195] CR2: 00007fa0a8e2da00 CR3: 000000000e5cc001 CR4: 0000000000771ef0
[   19.413276][  T195] PKRU: 55555554
[   19.413374][  T195] Call Trace:
[   19.413479][  T195]  <TASK>
[   19.413549][  T195]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.413686][  T195]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.413823][  T195]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.413923][  T195]  register_netdevice (net/core/dev.c:11488)
[   19.414054][  T195]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.414216][  T195]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   19.414348][  T195]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   19.414479][  T195]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   19.414613][  T195]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   19.414767][  T195]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   19.414898][  T195]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   19.415028][  T195]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   19.415158][  T195]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   19.415292][  T195]  vti_init_net (net/ipv4/ip_vti.c:517)
[   19.415422][  T195]  ops_init (net/core/net_namespace.c:137)
[   19.415521][  T195]  setup_net (net/core/net_namespace.c:446)
[   19.415624][  T195]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.415759][  T195]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.415889][  T195]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.416022][  T195]  copy_net_ns (net/core/net_namespace.c:579)
[   19.416154][  T195]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.416286][  T195]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.416417][  T195]  ksys_unshare (kernel/fork.c:3243)
[   19.416547][  T195]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.416680][  T195]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.416812][  T195]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.416943][  T195]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   19.417075][  T195]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.417206][  T195]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.417335][  T195]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.417464][  T195]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.417593][  T195]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.417727][  T195]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.417863][  T195]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.418023][  T195] RIP: 0033:0x7fa0a8f22bcb
[   19.418162][  T195] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.418628][  T195] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.418831][  T195] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   19.419026][  T195] RDX: 0000000000406420 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   19.419219][  T195] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   19.419413][  T195] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   19.419610][  T195] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   19.427752][   T12] ------------[ cut here ]------------
| [   19.427884][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   19.428118][   T12] Modules linked in:
| [   19.428477][   T12] Tainted: [W]=WARN
[   19.428565][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.428718][   T12] Workqueue: netns cleanup_net
[   19.428847][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.429002][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.429429][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   19.429578][   T12] RAX: 00000000ffffffa6 RBX: ff110000028a8c80 RCX: 1ff4000000018ed5
[   19.429765][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000028a8d3c
[   19.429942][   T12] RBP: ff1100000902c000 R08: 1fe22000005151a9 R09: ff11000001aed1d0
[   19.430118][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   19.430294][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   19.430475][   T12] FS:  0000000000000000(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   19.430691][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.430845][   T12] CR2: 00007fa0a8f22bc0 CR3: 000000000e5cc005 CR4: 0000000000771ef0
[   19.431024][   T12] PKRU: 55555554
[   19.431112][   T12] Call Trace:
[   19.431201][   T12]  <TASK>
[   19.431264][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   19.431416][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.431569][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   19.431693][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   19.431817][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   19.431937][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   19.432056][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   19.432175][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   19.432295][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   19.432411][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.432532][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   19.432654][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.432774][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.432893][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.433010][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.433129][   T12]  process_one_work (kernel/workqueue.c:3314)
[   19.433250][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.433367][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.433493][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.433617][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.433745][   T12]  kthread (kernel/kthread.c:436)
[   19.433834][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.433981][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.434099][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.434218][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.434363][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.434483][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.434609][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.440193][  T195] ------------[ cut here ]------------
| [   19.440330][  T195] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: scm_rights/195
| [   19.440588][  T195] Modules linked in:
| [   19.440992][  T195] Tainted: [W]=WARN
[   19.441091][  T195] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.441253][  T195] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.441422][  T195] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.441894][  T195] RSP: 0018:ffa0000000557a78 EFLAGS: 00010286
[   19.442058][  T195] RAX: 00000000ffffffa6 RBX: ff1100000e4f9540 RCX: 1ff40000000aaf15
[   19.442253][  T195] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e4f95fc
[   19.442445][  T195] RBP: ff1100001022c000 R08: 1fe2200001c9f2c1 R09: ff110000101dd180
[   19.442641][  T195] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   19.442858][  T195] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100001022c000
[   19.443055][  T195] FS:  00007fa0a8e27740(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   19.443282][  T195] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.443443][  T195] CR2: 00007fa0a8e2da00 CR3: 000000000e5cc001 CR4: 0000000000771ef0
[   19.443643][  T195] PKRU: 55555554
[   19.443759][  T195] Call Trace:
[   19.443856][  T195]  <TASK>
[   19.443923][  T195]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.444074][  T195]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.444203][  T195]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.444303][  T195]  register_netdevice (net/core/dev.c:11488)
[   19.444434][  T195]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.444595][  T195]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.444737][  T195]  register_netdev (net/core/dev.c:11552)
[   19.444868][  T195]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   19.444998][  T195]  ops_init (net/core/net_namespace.c:137)
[   19.445097][  T195]  setup_net (net/core/net_namespace.c:446)
[   19.445194][  T195]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.445322][  T195]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.445449][  T195]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.445579][  T195]  copy_net_ns (net/core/net_namespace.c:579)
[   19.445713][  T195]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.445851][  T195]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.445980][  T195]  ksys_unshare (kernel/fork.c:3243)
[   19.446109][  T195]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.446237][  T195]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.446365][  T195]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.446494][  T195]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   19.446627][  T195]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.446763][  T195]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.446892][  T195]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.447020][  T195]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.447148][  T195]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.447276][  T195]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.447404][  T195]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.447563][  T195] RIP: 0033:0x7fa0a8f22bcb
[   19.447702][  T195] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.448166][  T195] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.448360][  T195] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   19.448552][  T195] RDX: 0000000000406420 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   19.448751][  T195] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   19.448943][  T195] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   19.449135][  T195] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   19.453250][  T195] ------------[ cut here ]------------
| [   19.453385][  T195] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: scm_rights/195
| [   19.453644][  T195] Modules linked in:
| [   19.454045][  T195] Tainted: [W]=WARN
[   19.454142][  T195] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.454303][  T195] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.454470][  T195] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.454943][  T195] RSP: 0018:ffa0000000557a68 EFLAGS: 00010286
[   19.455105][  T195] RAX: 00000000ffffffa6 RBX: ff1100000cfbc200 RCX: 1ff40000000aaf13
[   19.455299][  T195] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cfbc2bc
[   19.455495][  T195] RBP: ff11000002419000 R08: 1fe22000019f7859 R09: ff110000101dd180
[   19.455692][  T195] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   19.455892][  T195] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000002419000
[   19.456086][  T195] FS:  00007fa0a8e27740(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   19.456311][  T195] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.456474][  T195] CR2: 00007fa0a8e2da00 CR3: 000000000e5cc001 CR4: 0000000000771ef0
[   19.456671][  T195] PKRU: 55555554
[   19.457266][  T195] Call Trace:
[   19.457364][  T195]  <TASK>
[   19.457430][  T195]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.457559][  T195]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.457691][  T195]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.457847][  T195]  register_netdevice (net/core/dev.c:11488)
[   19.457978][  T195]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.458140][  T195]  register_netdev (net/core/dev.c:11552)
[   19.458269][  T195]  sit_init_net (net/ipv6/sit.c:1860)
[   19.458399][  T195]  ops_init (net/core/net_namespace.c:137)
[   19.458498][  T195]  setup_net (net/core/net_namespace.c:446)
[   19.458595][  T195]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.458728][  T195]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.458912][  T195]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.459043][  T195]  copy_net_ns (net/core/net_namespace.c:579)
[   19.459173][  T195]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.459305][  T195]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.459489][  T195]  ksys_unshare (kernel/fork.c:3243)
[   19.459621][  T195]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.459807][  T195]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.459936][  T195]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.460066][  T195]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   19.460197][  T195]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.460328][  T195]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.460456][  T195]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.460585][  T195]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.460719][  T195]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.460906][  T195]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.461036][  T195]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.461197][  T195] RIP: 0033:0x7fa0a8f22bcb
[   19.461332][  T195] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.461857][  T195] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.462052][  T195] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   19.462245][  T195] RDX: 0000000000406420 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   19.462439][  T195] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   19.462637][  T195] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   19.462887][  T195] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   19.473888][  T195] ------------[ cut here ]------------
| [   19.474070][  T195] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/195
| [   19.474383][  T195] Modules linked in:
| [   19.474899][  T195] Tainted: [W]=WARN
[   19.475044][  T195] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.475252][  T195] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.475468][  T195] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.476003][  T195] RSP: 0018:ffa0000000557a78 EFLAGS: 00010286
[   19.476215][  T195] RAX: 00000000ffffffa6 RBX: ff11000008f83700 RCX: 1ff40000000aaf15
[   19.476455][  T195] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000008f837bc
[   19.476705][  T195] RBP: ff1100000e93c000 R08: 1fe22000011f06f9 R09: ff110000101dd180
[   19.476966][  T195] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   19.477205][  T195] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e93c000
[   19.477446][  T195] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   19.477730][  T195] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.477953][  T195] CR2: 00007fa0a8e9a0a0 CR3: 000000000e5cc006 CR4: 0000000000771ef0
[   19.478203][  T195] PKRU: 55555554
[   19.478346][  T195] Call Trace:
[   19.478491][  T195]  <TASK>
[   19.478612][  T195]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.478804][  T195]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.478984][  T195]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.479130][  T195]  register_netdevice (net/core/dev.c:11488)
[   19.479308][  T195]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.479516][  T195]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.479706][  T195]  register_netdev (net/core/dev.c:11552)
[   19.479897][  T195]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   19.480076][  T195]  ops_init (net/core/net_namespace.c:137)
[   19.480223][  T195]  setup_net (net/core/net_namespace.c:446)
[   19.480373][  T195]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.480549][  T195]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.480750][  T195]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.480933][  T195]  copy_net_ns (net/core/net_namespace.c:579)
[   19.481113][  T195]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.481294][  T195]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.481477][  T195]  ksys_unshare (kernel/fork.c:3243)
[   19.481662][  T195]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.481850][  T195]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.482028][  T195]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.482208][  T195]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   19.482387][  T195]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.482567][  T195]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.482765][  T195]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.482947][  T195]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.483125][  T195]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.483302][  T195]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.483483][  T195]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.483701][  T195] RIP: 0033:0x7fa0a8f22bcb
[   19.483897][  T195] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.484410][  T195] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.484659][  T195] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   19.484910][  T195] RDX: 0000000000406420 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   19.485152][  T195] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   19.485395][  T195] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   19.485644][  T195] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   19.507562][   T12] ------------[ cut here ]------------
| [   19.507696][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   19.507939][   T12] Modules linked in:
| [   19.508298][   T12] Tainted: [W]=WARN
[   19.508386][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.508531][   T12] Workqueue: netns cleanup_net
[   19.508659][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.508817][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.509235][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   19.509388][   T12] RAX: 00000000ffffffa6 RBX: ff1100000cfc5a80 RCX: 1ff4000000018eed
[   19.509563][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cfc5b3c
[   19.509745][   T12] RBP: ff1100000e93c000 R08: 1fe22000019f8b69 R09: ff11000001aed1d0
[   19.509920][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   19.510092][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   19.510267][   T12] FS:  0000000000000000(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   19.510470][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.510621][   T12] CR2: 00007fa0a8f22bc0 CR3: 0000000044d4d001 CR4: 0000000000771ef0
[   19.510816][   T12] PKRU: 55555554
[   19.510904][   T12] Call Trace:
[   19.510992][   T12]  <TASK>
[   19.511054][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   19.511204][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.511354][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   19.511472][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   19.511597][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.511717][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   19.511840][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.511958][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   19.512077][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   19.512195][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.512315][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   19.512433][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.512554][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.512676][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.512798][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.512915][   T12]  process_one_work (kernel/workqueue.c:3314)
[   19.513036][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.513151][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.513271][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.513391][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.513511][   T12]  kthread (kernel/kthread.c:436)
[   19.513602][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.513750][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.513866][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.513985][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.514129][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.514247][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.514367][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.516443][   T12] ------------[ cut here ]------------
| [   19.516558][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   19.516796][   T12] Modules linked in:
| [   19.517150][   T12] Tainted: [W]=WARN
[   19.517241][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.517386][   T12] Workqueue: netns cleanup_net
[   19.517505][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.517658][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.518075][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   19.518221][   T12] RAX: 00000000ffffffa6 RBX: ff1100000cfc5700 RCX: 1ff4000000018eed
[   19.518390][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cfc57bc
[   19.518562][   T12] RBP: ff11000002419000 R08: 1fe22000019f8af9 R09: ff11000001aed1d0
[   19.518743][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   19.518920][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   19.519096][   T12] FS:  0000000000000000(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   19.519297][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.519443][   T12] CR2: 00007fa0a8f22bc0 CR3: 0000000044d4d001 CR4: 0000000000771ef0
[   19.519624][   T12] PKRU: 55555554
[   19.519713][   T12] Call Trace:
[   19.519803][   T12]  <TASK>
[   19.519864][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   19.520012][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.520156][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   19.520272][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   19.520393][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.520507][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   19.520629][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.520748][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   19.520865][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   19.520980][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.521101][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   19.521217][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.521331][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.521448][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.521563][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.521684][   T12]  process_one_work (kernel/workqueue.c:3314)
[   19.521806][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.521923][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.522043][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.522163][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.522280][   T12]  kthread (kernel/kthread.c:436)
[   19.522373][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.522516][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.522638][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.522762][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.522906][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.523022][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.523142][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.525219][   T12] ------------[ cut here ]------------
| [   19.525333][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   19.525557][   T12] Modules linked in:
| [   19.526104][   T12] Tainted: [W]=WARN
[   19.526192][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.526336][   T12] Workqueue: netns cleanup_net
[   19.526455][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.526608][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.527080][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   19.527226][   T12] RAX: 00000000ffffffa6 RBX: ff1100000d9b4740 RCX: 1ff4000000018eed
[   19.527401][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d9b47fc
[   19.527575][   T12] RBP: ff1100001022c000 R08: 1fe2200001b36901 R09: ff11000001aed1d0
[   19.527831][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   19.528002][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   19.528174][   T12] FS:  0000000000000000(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   19.528409][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.528559][   T12] CR2: 00007fa0a8f22bc0 CR3: 0000000044d4d001 CR4: 0000000000771ef0
[   19.528740][   T12] PKRU: 55555554
[   19.528828][   T12] Call Trace:
[   19.528913][   T12]  <TASK>
[   19.528974][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   19.529124][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.529268][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   19.529385][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   19.529501][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.529621][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   19.529745][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.529862][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   19.529979][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   19.530094][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.530212][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   19.530329][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.530444][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.530560][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.530680][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.530802][   T12]  process_one_work (kernel/workqueue.c:3314)
[   19.530926][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.531040][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.531160][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.531283][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.531403][   T12]  kthread (kernel/kthread.c:436)
[   19.531491][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.531638][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.531764][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.531881][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.532025][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.532141][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.532257][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.534176][   T12] ------------[ cut here ]------------
| [   19.534289][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   19.534514][   T12] Modules linked in:
| [   19.535288][   T12] Tainted: [W]=WARN
[   19.535376][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.535522][   T12] Workqueue: netns cleanup_net
[   19.535691][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.535889][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.536319][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   19.536465][   T12] RAX: 00000000ffffffa6 RBX: ff1100000d9b4c80 RCX: 1ff4000000018eed
[   19.536645][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d9b4d3c
[   19.536863][   T12] RBP: ff1100000f35c000 R08: 1fe2200001b369a9 R09: ff11000001aed1d0
[   19.537036][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   19.537207][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   19.537381][   T12] FS:  0000000000000000(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   19.537581][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.537780][   T12] CR2: 00007fa0a8f22bc0 CR3: 0000000044d4d001 CR4: 0000000000771ef0
[   19.537955][   T12] PKRU: 55555554
[   19.538041][   T12] Call Trace:
[   19.538127][   T12]  <TASK>
[   19.538187][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   19.538339][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.538486][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   19.538609][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   19.538780][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.538896][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   19.539011][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.539133][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   19.539254][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   19.539369][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.539490][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   19.539610][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.539728][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.539898][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.540015][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.540136][   T12]  process_one_work (kernel/workqueue.c:3314)
[   19.540256][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.540373][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.540495][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.540618][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.540780][   T12]  kthread (kernel/kthread.c:436)
[   19.540912][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.541059][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.541180][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.541295][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.541440][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.541554][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.541672][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.543865][   T12] ------------[ cut here ]------------
| [   19.543980][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   19.544202][   T12] Modules linked in:
| [   19.544555][   T12] Tainted: [W]=WARN
[   19.544645][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.545329][   T12] Workqueue: netns cleanup_net
[   19.545451][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.545607][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.546112][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   19.546262][   T12] RAX: 00000000ffffffa6 RBX: ff1100000d9b5700 RCX: 1ff4000000018eed
[   19.546435][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d9b57bc
[   19.546614][   T12] RBP: ff1100000e7ac000 R08: 1fe2200001b36af9 R09: ff11000001aed1d0
[   19.546864][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   19.547037][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   19.547211][   T12] FS:  0000000000000000(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   19.547412][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.547556][   T12] CR2: 00007fa0a8f22bc0 CR3: 0000000044d4d001 CR4: 0000000000771ef0
[   19.547784][   T12] PKRU: 55555554
[   19.547871][   T12] Call Trace:
[   19.547957][   T12]  <TASK>
[   19.548016][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   19.548163][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.548306][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   19.548421][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   19.548538][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.548657][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   19.548822][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.548941][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   19.549061][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   19.549176][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.549294][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   19.549410][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.549525][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.549648][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.549809][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.549925][   T12]  process_one_work (kernel/workqueue.c:3314)
[   19.550048][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.550162][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.550281][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.550405][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.550519][   T12]  kthread (kernel/kthread.c:436)
[   19.550611][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.550800][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.550916][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.551032][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.551173][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.551293][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.551409][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.571671][  T197] ------------[ cut here ]------------
| [   19.571860][  T197] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/197
| [   19.572167][  T197] Modules linked in:
| [   19.572669][  T197] Tainted: [W]=WARN
[   19.572864][  T197] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.573073][  T197] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.573289][  T197] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.573819][  T197] RSP: 0018:ffa00000008a7a80 EFLAGS: 00010286
[   19.574028][  T197] RAX: 00000000ffffffa6 RBX: ff1100000937b540 RCX: 1ff4000000114f16
[   19.574268][  T197] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000937b5fc
[   19.574515][  T197] RBP: ff1100000f8b1000 R08: 1fe220000126f6c1 R09: ff1100000a945180
[   19.574774][  T197] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   19.575014][  T197] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f8b1000
[   19.575256][  T197] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   19.575532][  T197] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.575756][  T197] CR2: 00007fa0a8f22bc0 CR3: 000000000f088003 CR4: 0000000000771ef0
[   19.575998][  T197] PKRU: 55555554
[   19.576141][  T197] Call Trace:
[   19.576285][  T197]  <TASK>
[   19.576398][  T197]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.576575][  T197]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.576775][  T197]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.576922][  T197]  register_netdevice (net/core/dev.c:11488)
[   19.577099][  T197]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.577307][  T197]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   19.577485][  T197]  register_netdev (net/core/dev.c:11552)
[   19.577671][  T197]  loopback_net_init (drivers/net/loopback.c:218)
[   19.577862][  T197]  ops_init (net/core/net_namespace.c:137)
[   19.578011][  T197]  setup_net (net/core/net_namespace.c:446)
[   19.578161][  T197]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.578336][  T197]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.578514][  T197]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.578701][  T197]  copy_net_ns (net/core/net_namespace.c:579)
[   19.578892][  T197]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.579071][  T197]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.579252][  T197]  ksys_unshare (kernel/fork.c:3243)
[   19.579427][  T197]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.579612][  T197]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.579800][  T197]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.579978][  T197]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   19.580156][  T197]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.580333][  T197]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.580509][  T197]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.580695][  T197]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.580882][  T197]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.581060][  T197]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.581236][  T197]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.581444][  T197] RIP: 0033:0x7fa0a8f22bcb
[   19.581633][  T197] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.582153][  T197] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.582395][  T197] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   19.582642][  T197] RDX: 0000000000406420 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   19.582894][  T197] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   19.583138][  T197] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   19.583379][  T197] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   19.585614][   T12] ------------[ cut here ]------------
| [   19.585748][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   19.585983][   T12] Modules linked in:
| [   19.586347][   T12] Tainted: [W]=WARN
[   19.586436][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.586583][   T12] Workqueue: netns cleanup_net
[   19.586712][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.586872][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.587294][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   19.587449][   T12] RAX: 00000000ffffffa6 RBX: ff1100000ba92040 RCX: 1ff4000000018ed5
[   19.587630][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ba920fc
[   19.587812][   T12] RBP: ff1100000a8cc000 R08: 1fe2200001752421 R09: ff11000001aed1d0
[   19.587989][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   19.588164][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   19.588342][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   19.588550][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.588709][   T12] CR2: 00000000004090e8 CR3: 00000000108d9003 CR4: 0000000000771ef0
[   19.588896][   T12] PKRU: 55555554
[   19.588984][   T12] Call Trace:
[   19.589077][   T12]  <TASK>
[   19.589139][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   19.589291][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.589440][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   19.589563][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   19.589687][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   19.589815][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   19.589934][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   19.590054][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   19.590175][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   19.590292][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.590413][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   19.590533][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.590657][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.590782][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.590901][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.591021][   T12]  process_one_work (kernel/workqueue.c:3314)
[   19.591142][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.591261][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.591386][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.591507][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.591630][   T12]  kthread (kernel/kthread.c:436)
[   19.591720][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.591877][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.591996][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.592115][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.592263][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.592381][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.592500][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.602994][  T197] ------------[ cut here ]------------
| [   19.603171][  T197] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/197
| [   19.603475][  T197] Modules linked in:
| [   19.603980][  T197] Tainted: [W]=WARN
[   19.604126][  T197] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.604333][  T197] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.604547][  T197] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.605069][  T197] RSP: 0018:ffa00000008a7918 EFLAGS: 00010286
[   19.605279][  T197] RAX: 00000000ffffffa6 RBX: ff11000010866740 RCX: 1ff4000000114ee9
[   19.605519][  T197] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000108667fc
[   19.605779][  T197] RBP: ff1100000f9c4000 R08: 1fe220000210cd01 R09: ff1100000a945180
[   19.606018][  T197] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   19.606258][  T197] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f9c4000
[   19.606500][  T197] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   19.606785][  T197] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.606993][  T197] CR2: 00007fa0a8f22bc0 CR3: 000000000f088003 CR4: 0000000000771ef0
[   19.607235][  T197] PKRU: 55555554
[   19.607377][  T197] Call Trace:
[   19.607522][  T197]  <TASK>
[   19.607641][  T197]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.607833][  T197]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.608011][  T197]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.608158][  T197]  register_netdevice (net/core/dev.c:11488)
[   19.608337][  T197]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.608546][  T197]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   19.608750][  T197]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   19.608928][  T197]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   19.609104][  T197]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   19.609282][  T197]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   19.609461][  T197]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   19.609648][  T197]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   19.609841][  T197]  ops_init (net/core/net_namespace.c:137)
[   19.609988][  T197]  setup_net (net/core/net_namespace.c:446)
[   19.610137][  T197]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.610312][  T197]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.610489][  T197]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.610675][  T197]  copy_net_ns (net/core/net_namespace.c:579)
[   19.610869][  T197]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.611050][  T197]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.611226][  T197]  ksys_unshare (kernel/fork.c:3243)
[   19.611406][  T197]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.611583][  T197]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.611778][  T197]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.611956][  T197]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   19.612134][  T197]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.612312][  T197]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.612487][  T197]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.612673][  T197]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.612863][  T197]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.613044][  T197]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.613222][  T197]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.613431][  T197] RIP: 0033:0x7fa0a8f22bcb
[   19.613619][  T197] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.614145][  T197] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.614388][  T197] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   19.614634][  T197] RDX: 0000000000406420 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   19.614887][  T197] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   19.615129][  T197] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   19.615368][  T197] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   19.619563][  T197] ------------[ cut here ]------------
| [   19.619754][  T197] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/197
| [   19.620057][  T197] Modules linked in:
| [   19.620547][  T197] Tainted: [W]=WARN
[   19.620699][  T197] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.620916][  T197] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.621132][  T197] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.621646][  T197] RSP: 0018:ffa00000008a78f8 EFLAGS: 00010286
[   19.621870][  T197] RAX: 00000000ffffffa6 RBX: ff11000010867e00 RCX: 1ff4000000114ee5
[   19.622109][  T197] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000010867ebc
[   19.622349][  T197] RBP: ff1100000f941000 R08: 1fe220000210cfd9 R09: ff1100000a945180
[   19.622590][  T197] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   19.622850][  T197] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f941000
[   19.623090][  T197] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   19.623364][  T197] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.623572][  T197] CR2: 00007fa0a8f22bc0 CR3: 000000000f088003 CR4: 0000000000771ef0
[   19.623837][  T197] PKRU: 55555554
[   19.623980][  T197] Call Trace:
[   19.624124][  T197]  <TASK>
[   19.624237][  T197]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.624416][  T197]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.624593][  T197]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.624761][  T197]  register_netdevice (net/core/dev.c:11488)
[   19.624940][  T197]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.625151][  T197]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   19.625332][  T197]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   19.625509][  T197]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   19.625693][  T197]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   19.625884][  T197]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   19.626063][  T197]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   19.626240][  T197]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   19.626425][  T197]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   19.626612][  T197]  vti_init_net (net/ipv4/ip_vti.c:517)
[   19.626806][  T197]  ops_init (net/core/net_namespace.c:137)
[   19.626953][  T197]  setup_net (net/core/net_namespace.c:446)
[   19.627099][  T197]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.627274][  T197]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.627451][  T197]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.627636][  T197]  copy_net_ns (net/core/net_namespace.c:579)
[   19.627833][  T197]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.628014][  T197]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.628192][  T197]  ksys_unshare (kernel/fork.c:3243)
[   19.628368][  T197]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.628546][  T197]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.628728][  T197]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.628919][  T197]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   19.629100][  T197]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.629278][  T197]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.629454][  T197]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.629636][  T197]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.629829][  T197]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.630007][  T197]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.630185][  T197]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.630393][  T197] RIP: 0033:0x7fa0a8f22bcb
[   19.630576][  T197] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.631097][  T197] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.631338][  T197] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   19.631581][  T197] RDX: 0000000000406420 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   19.631840][  T197] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   19.632077][  T197] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   19.632317][  T197] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   19.636779][  T197] ------------[ cut here ]------------
| [   19.636954][  T197] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/197
| [   19.637259][  T197] Modules linked in:
| [   19.637755][  T197] Tainted: [W]=WARN
[   19.637898][  T197] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.638104][  T197] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.638318][  T197] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.638842][  T197] RSP: 0018:ffa00000008a7a78 EFLAGS: 00010286
[   19.639052][  T197] RAX: 00000000ffffffa6 RBX: ff1100000937b700 RCX: 1ff4000000114f15
[   19.639289][  T197] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000937b7bc
[   19.639530][  T197] RBP: ff1100000f3e4000 R08: 1fe220000126f6f9 R09: ff1100000a945180
[   19.639783][  T197] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   19.640021][  T197] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f3e4000
[   19.640263][  T197] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   19.640540][  T197] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.640770][  T197] CR2: 00007fa0a8f22bc0 CR3: 000000000f088003 CR4: 0000000000771ef0
[   19.641014][  T197] PKRU: 55555554
[   19.641156][  T197] Call Trace:
[   19.641299][  T197]  <TASK>
[   19.641412][  T197]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.641590][  T197]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.641787][  T197]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.641934][  T197]  register_netdevice (net/core/dev.c:11488)
[   19.642114][  T197]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.642322][  T197]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.642501][  T197]  register_netdev (net/core/dev.c:11552)
[   19.642688][  T197]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   19.642882][  T197]  ops_init (net/core/net_namespace.c:137)
[   19.643033][  T197]  setup_net (net/core/net_namespace.c:446)
[   19.643180][  T197]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.643355][  T197]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.643533][  T197]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.643713][  T197]  copy_net_ns (net/core/net_namespace.c:579)
[   19.643906][  T197]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.644087][  T197]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.644267][  T197]  ksys_unshare (kernel/fork.c:3243)
[   19.644442][  T197]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.644625][  T197]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.644814][  T197]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.644992][  T197]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   19.645171][  T197]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.645350][  T197]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.645530][  T197]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.645711][  T197]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.645902][  T197]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.646080][  T197]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.646257][  T197]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.646467][  T197] RIP: 0033:0x7fa0a8f22bcb
[   19.646658][  T197] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.647178][  T197] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.647422][  T197] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   19.647669][  T197] RDX: 0000000000406420 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   19.647926][  T197] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   19.648166][  T197] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   19.648405][  T197] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   19.653069][  T197] ------------[ cut here ]------------
| [   19.653246][  T197] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/197
| [   19.653549][  T197] Modules linked in:
| [   19.654063][  T197] Tainted: [W]=WARN
[   19.654209][  T197] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.654421][  T197] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.654645][  T197] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.655164][  T197] RSP: 0018:ffa00000008a7a68 EFLAGS: 00010286
[   19.655377][  T197] RAX: 00000000ffffffa6 RBX: ff1100000946a040 RCX: 1ff4000000114f13
[   19.655625][  T197] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000946a0fc
[   19.655879][  T197] RBP: ff1100000f9c1000 R08: 1fe220000128d421 R09: ff1100000a945180
[   19.656122][  T197] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   19.656364][  T197] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f9c1000
[   19.656611][  T197] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   19.656899][  T197] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.657109][  T197] CR2: 00007fa0a8f22bc0 CR3: 000000000f088003 CR4: 0000000000771ef0
[   19.657353][  T197] PKRU: 55555554
[   19.657496][  T197] Call Trace:
[   19.657647][  T197]  <TASK>
[   19.657774][  T197]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.657953][  T197]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.658131][  T197]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.658278][  T197]  register_netdevice (net/core/dev.c:11488)
[   19.658460][  T197]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.658679][  T197]  register_netdev (net/core/dev.c:11552)
[   19.658869][  T197]  sit_init_net (net/ipv6/sit.c:1860)
[   19.659048][  T197]  ops_init (net/core/net_namespace.c:137)
[   19.659194][  T197]  setup_net (net/core/net_namespace.c:446)
[   19.659341][  T197]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.659517][  T197]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.659702][  T197]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.659897][  T197]  copy_net_ns (net/core/net_namespace.c:579)
[   19.660077][  T197]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.660257][  T197]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.660436][  T197]  ksys_unshare (kernel/fork.c:3243)
[   19.660620][  T197]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.660813][  T197]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.660991][  T197]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.661172][  T197]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   19.661350][  T197]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.661529][  T197]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.661710][  T197]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.661899][  T197]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.662077][  T197]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.662253][  T197]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.662431][  T197]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.662646][  T197] RIP: 0033:0x7fa0a8f22bcb
[   19.662842][  T197] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.663346][  T197] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.663591][  T197] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   19.663848][  T197] RDX: 0000000000406420 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   19.664087][  T197] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   19.664326][  T197] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   19.664566][  T197] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   19.669626][  T197] ------------[ cut here ]------------
| [   19.669808][  T197] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/197
| [   19.670113][  T197] Modules linked in:
| [   19.670598][  T197] Tainted: [W]=WARN
[   19.670761][  T197] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.670969][  T197] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.671186][  T197] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.671696][  T197] RSP: 0018:ffa00000008a7a78 EFLAGS: 00010286
[   19.671917][  T197] RAX: 00000000ffffffa6 RBX: ff1100000eb38c80 RCX: 1ff4000000114f15
[   19.672155][  T197] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000eb38d3c
[   19.672397][  T197] RBP: ff1100000f829000 R08: 1fe2200001d671a9 R09: ff1100000a945180
[   19.672645][  T197] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   19.672897][  T197] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f829000
[   19.673140][  T197] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   19.673415][  T197] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.673631][  T197] CR2: 00007fa0a8f22bc0 CR3: 000000000f088003 CR4: 0000000000771ef0
[   19.673884][  T197] PKRU: 55555554
[   19.674027][  T197] Call Trace:
[   19.674170][  T197]  <TASK>
[   19.674284][  T197]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.674464][  T197]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.674649][  T197]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.674807][  T197]  register_netdevice (net/core/dev.c:11488)
[   19.674986][  T197]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.675194][  T197]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.675373][  T197]  register_netdev (net/core/dev.c:11552)
[   19.675551][  T197]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   19.675839][  T197]  ops_init (net/core/net_namespace.c:137)
[   19.675985][  T197]  setup_net (net/core/net_namespace.c:446)
[   19.676131][  T197]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.676305][  T197]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.676483][  T197]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.676767][  T197]  copy_net_ns (net/core/net_namespace.c:579)
[   19.676949][  T197]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.677130][  T197]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.677308][  T197]  ksys_unshare (kernel/fork.c:3243)
[   19.677569][  T197]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.677761][  T197]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.677934][  T197]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.678110][  T197]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   19.678373][  T197]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.678552][  T197]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.678754][  T197]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.678932][  T197]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.679195][  T197]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.679374][  T197]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.679550][  T197]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.679778][  T197] RIP: 0033:0x7fa0a8f22bcb
[   19.679960][  T197] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.680552][  T197] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.680813][  T197] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   19.681051][  T197] RDX: 0000000000406420 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   19.681378][  T197] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   19.681623][  T197] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   19.681963][  T197] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   19.706223][   T12] ------------[ cut here ]------------
| [   19.706365][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   19.706604][   T12] Modules linked in:
| [   19.706969][   T12] Tainted: [W]=WARN
[   19.707058][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.707204][   T12] Workqueue: netns cleanup_net
[   19.707325][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.707476][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.707906][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   19.708058][   T12] RAX: 00000000ffffffa6 RBX: ff110000028a9e00 RCX: 1ff4000000018eed
[   19.708232][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000028a9ebc
[   19.708404][   T12] RBP: ff1100000f829000 R08: 1fe22000005153d9 R09: ff11000001aed1d0
[   19.708579][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   19.708766][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   19.708941][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   19.709149][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.709293][   T12] CR2: 00000000004090e8 CR3: 00000000108d9003 CR4: 0000000000771ef0
[   19.709466][   T12] PKRU: 55555554
[   19.709552][   T12] Call Trace:
[   19.709641][   T12]  <TASK>
[   19.709701][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   19.709856][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.710003][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   19.710125][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   19.710243][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.710356][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   19.710473][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.710590][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   19.710712][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   19.710829][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.710949][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   19.711065][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.711179][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.711295][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.711410][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.711526][   T12]  process_one_work (kernel/workqueue.c:3314)
[   19.711648][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.711773][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.711892][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.712012][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.712128][   T12]  kthread (kernel/kthread.c:436)
[   19.712215][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.712360][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.712477][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.712595][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.712796][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.712912][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.713074][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.715196][   T12] ------------[ cut here ]------------
| [   19.715309][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   19.715535][   T12] Modules linked in:
| [   19.715896][   T12] Tainted: [W]=WARN
[   19.715982][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.716125][   T12] Workqueue: netns cleanup_net
[   19.716244][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.716398][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.716819][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   19.716966][   T12] RAX: 00000000ffffffa6 RBX: ff11000009726e40 RCX: 1ff4000000018eed
[   19.717138][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009726efc
[   19.717309][   T12] RBP: ff1100000f9c1000 R08: 1fe22000012e4de1 R09: ff11000001aed1d0
[   19.717481][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   19.717662][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   19.717849][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   19.718054][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.718202][   T12] CR2: 00000000004090e8 CR3: 00000000108d9003 CR4: 0000000000771ef0
[   19.718377][   T12] PKRU: 55555554
[   19.718463][   T12] Call Trace:
[   19.718549][   T12]  <TASK>
[   19.718613][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   19.718774][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.718918][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   19.719033][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   19.719150][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.719266][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   19.719383][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.719498][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   19.719618][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   19.719742][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.719859][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   19.719975][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.720089][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.720205][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.720325][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.720442][   T12]  process_one_work (kernel/workqueue.c:3314)
[   19.720562][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.720681][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.720806][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.720928][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.721043][   T12]  kthread (kernel/kthread.c:436)
[   19.721131][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.721275][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.721395][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.721514][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.721666][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.721789][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.721906][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.724111][   T12] ------------[ cut here ]------------
| [   19.724225][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   19.724448][   T12] Modules linked in:
| [   19.724802][   T12] Tainted: [W]=WARN
[   19.724889][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.725034][   T12] Workqueue: netns cleanup_net
[   19.725154][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.725308][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.725737][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   19.725884][   T12] RAX: 00000000ffffffa6 RBX: ff11000009726200 RCX: 1ff4000000018eed
[   19.726056][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000097262bc
[   19.726231][   T12] RBP: ff1100000f3e4000 R08: 1fe22000012e4c59 R09: ff11000001aed1d0
[   19.726403][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   19.726577][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   19.726765][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   19.726968][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.727116][   T12] CR2: 00000000004090e8 CR3: 00000000108d9003 CR4: 0000000000771ef0
[   19.727289][   T12] PKRU: 55555554
[   19.727376][   T12] Call Trace:
[   19.727464][   T12]  <TASK>
[   19.727524][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   19.727676][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.727824][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   19.727940][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   19.728058][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.728174][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   19.728291][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.728408][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   19.728526][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   19.728644][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.728769][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   19.728886][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.729006][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.729123][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.729238][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.729356][   T12]  process_one_work (kernel/workqueue.c:3314)
[   19.729478][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.729595][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.729722][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.729850][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.729968][   T12]  kthread (kernel/kthread.c:436)
[   19.730056][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.730203][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.730320][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.730438][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.730584][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.730706][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.730828][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.738141][   T12] ------------[ cut here ]------------
| [   19.738265][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   19.738495][   T12] Modules linked in:
| [   19.739435][   T12] Tainted: [W]=WARN
[   19.739525][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.739673][   T12] Workqueue: netns cleanup_net
[   19.739842][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.739995][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.740410][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   19.740561][   T12] RAX: 00000000ffffffa6 RBX: ff110000097263c0 RCX: 1ff4000000018eed
[   19.740787][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000972647c
[   19.741014][   T12] RBP: ff1100000f941000 R08: 1fe22000012e4c91 R09: ff11000001aed1d0
[   19.741188][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   19.741361][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   19.741538][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   19.741792][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.741938][   T12] CR2: 00000000004090e8 CR3: 00000000108d9003 CR4: 0000000000771ef0
[   19.742113][   T12] PKRU: 55555554
[   19.742199][   T12] Call Trace:
[   19.742285][   T12]  <TASK>
[   19.742345][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   19.742494][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.742640][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   19.742805][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   19.742923][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.743044][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   19.743161][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.743279][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   19.743400][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   19.743516][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.743636][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   19.743800][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.743914][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.744032][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.744153][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.744270][   T12]  process_one_work (kernel/workqueue.c:3314)
[   19.744396][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.744513][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.744638][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.744808][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.744929][   T12]  kthread (kernel/kthread.c:436)
[   19.745017][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.745161][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.745278][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.745400][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.745546][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.745668][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.745834][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.748057][   T12] ------------[ cut here ]------------
| [   19.748172][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   19.748397][   T12] Modules linked in:
| [   19.749246][   T12] Tainted: [W]=WARN
[   19.749335][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.749482][   T12] Workqueue: netns cleanup_net
[   19.749606][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.749852][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.750269][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   19.750416][   T12] RAX: 00000000ffffffa6 RBX: ff11000009726c80 RCX: 1ff4000000018eed
[   19.750590][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009726d3c
[   19.750857][   T12] RBP: ff1100000f9c4000 R08: 1fe22000012e4da9 R09: ff11000001aed1d0
[   19.751033][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   19.751205][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   19.751472][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   19.751681][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.751883][   T12] CR2: 00000000004090e8 CR3: 00000000108d9003 CR4: 0000000000771ef0
[   19.752058][   T12] PKRU: 55555554
[   19.752146][   T12] Call Trace:
[   19.752232][   T12]  <TASK>
[   19.752294][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   19.752443][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.752588][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   19.752709][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   19.752907][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.753028][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   19.753147][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.753264][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   19.753388][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   19.753503][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.753627][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   19.753793][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.753910][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.754028][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.754146][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.754265][   T12]  process_one_work (kernel/workqueue.c:3314)
[   19.754385][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.754501][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.754627][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.754798][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.754914][   T12]  kthread (kernel/kthread.c:436)
[   19.755002][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.755148][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.755266][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.755385][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.755534][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.755654][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.755817][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.762056][  T199] ------------[ cut here ]------------
| [   19.762205][  T199] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/199
| [   19.762467][  T199] Modules linked in:
| [   19.762878][  T199] Tainted: [W]=WARN
[   19.762978][  T199] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.763142][  T199] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.763313][  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
[   19.763793][  T199] RSP: 0018:ffa0000000557a80 EFLAGS: 00010286
[   19.763959][  T199] RAX: 00000000ffffffa6 RBX: ff1100000d1f1a80 RCX: 1ff40000000aaf16
[   19.764156][  T199] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d1f1b3c
[   19.764352][  T199] RBP: ff1100000f2b1000 R08: 1fe2200001a3e369 R09: ff1100000c1aae80
[   19.764548][  T199] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   19.764760][  T199] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f2b1000
[   19.764962][  T199] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   19.765193][  T199] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.765357][  T199] CR2: 00007fa0a8f22bc0 CR3: 0000000004be8006 CR4: 0000000000771ef0
[   19.765555][  T199] PKRU: 55555554
[   19.765657][  T199] Call Trace:
[   19.765763][  T199]  <TASK>
[   19.765831][  T199]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.765969][  T199]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.766100][  T199]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.766202][  T199]  register_netdevice (net/core/dev.c:11488)
[   19.766334][  T199]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.766499][  T199]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   19.766637][  T199]  register_netdev (net/core/dev.c:11552)
[   19.766776][  T199]  loopback_net_init (drivers/net/loopback.c:218)
[   19.766909][  T199]  ops_init (net/core/net_namespace.c:137)
[   19.767010][  T199]  setup_net (net/core/net_namespace.c:446)
[   19.767110][  T199]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.767241][  T199]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.767372][  T199]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.767507][  T199]  copy_net_ns (net/core/net_namespace.c:579)
[   19.767644][  T199]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.767783][  T199]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.767916][  T199]  ksys_unshare (kernel/fork.c:3243)
[   19.768047][  T199]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.768178][  T199]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.768308][  T199]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.768442][  T199]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   19.768574][  T199]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.768710][  T199]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.768844][  T199]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.768976][  T199]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.769105][  T199]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.769235][  T199]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.769367][  T199]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.769530][  T199] RIP: 0033:0x7fa0a8f22bcb
[   19.769669][  T199] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.770138][  T199] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.770333][  T199] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   19.770528][  T199] RDX: 0000000000406460 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   19.770726][  T199] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   19.770926][  T199] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   19.771120][  T199] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   19.775414][  T199] ------------[ cut here ]------------
| [   19.775551][  T199] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/199
| [   19.775822][  T199] Modules linked in:
| [   19.776216][  T199] Tainted: [W]=WARN
[   19.776315][  T199] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.776478][  T199] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.776651][  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
[   19.777119][  T199] RSP: 0018:ffa0000000557918 EFLAGS: 00010286
[   19.777281][  T199] RAX: 00000000ffffffa6 RBX: ff1100000960f540 RCX: 1ff40000000aaee9
[   19.777475][  T199] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000960f5fc
[   19.777675][  T199] RBP: ff11000010231000 R08: 1fe22000012c1ec1 R09: ff1100000c1aae80
[   19.777874][  T199] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   19.778067][  T199] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000010231000
[   19.778262][  T199] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   19.778491][  T199] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.778659][  T199] CR2: 00007fa0a8f22bc0 CR3: 0000000004be8006 CR4: 0000000000771ef0
[   19.778860][  T199] PKRU: 55555554
[   19.778958][  T199] Call Trace:
[   19.779055][  T199]  <TASK>
[   19.779123][  T199]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.779253][  T199]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.779384][  T199]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.779483][  T199]  register_netdevice (net/core/dev.c:11488)
[   19.779618][  T199]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.779783][  T199]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   19.779916][  T199]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   19.780046][  T199]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   19.780179][  T199]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   19.780310][  T199]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   19.780441][  T199]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   19.780573][  T199]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   19.780708][  T199]  ops_init (net/core/net_namespace.c:137)
[   19.780812][  T199]  setup_net (net/core/net_namespace.c:446)
[   19.780910][  T199]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.781038][  T199]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.781169][  T199]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.781300][  T199]  copy_net_ns (net/core/net_namespace.c:579)
[   19.781430][  T199]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.781564][  T199]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.781697][  T199]  ksys_unshare (kernel/fork.c:3243)
[   19.781832][  T199]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.781961][  T199]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.782091][  T199]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.782222][  T199]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   19.782352][  T199]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.782483][  T199]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.782613][  T199]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.782746][  T199]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.782874][  T199]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.783003][  T199]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.783133][  T199]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.783294][  T199] RIP: 0033:0x7fa0a8f22bcb
[   19.783429][  T199] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.783898][  T199] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.784093][  T199] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   19.784286][  T199] RDX: 0000000000406460 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   19.784478][  T199] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   19.784675][  T199] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   19.784873][  T199] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   19.788710][  T199] ------------[ cut here ]------------
| [   19.788848][  T199] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/199
| [   19.789107][  T199] Modules linked in:
| [   19.789504][  T199] Tainted: [W]=WARN
[   19.789607][  T199] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.789777][  T199] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.789948][  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
[   19.790412][  T199] RSP: 0018:ffa00000005578f8 EFLAGS: 00010286
[   19.790577][  T199] RAX: 00000000ffffffa6 RBX: ff110000092cc200 RCX: 1ff40000000aaee5
[   19.790780][  T199] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000092cc2bc
[   19.790976][  T199] RBP: ff11000005094000 R08: 1fe2200001259859 R09: ff1100000c1aae80
[   19.791172][  T199] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   19.791367][  T199] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000005094000
[   19.791564][  T199] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   19.791801][  T199] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.791966][  T199] CR2: 00007fa0a8f22bc0 CR3: 0000000004be8006 CR4: 0000000000771ef0
[   19.792164][  T199] PKRU: 55555554
[   19.792262][  T199] Call Trace:
[   19.792360][  T199]  <TASK>
[   19.792427][  T199]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.792562][  T199]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.792699][  T199]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.792807][  T199]  register_netdevice (net/core/dev.c:11488)
[   19.792943][  T199]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.793107][  T199]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   19.793241][  T199]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   19.793372][  T199]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   19.793505][  T199]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   19.793643][  T199]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   19.793780][  T199]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   19.793915][  T199]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   19.794048][  T199]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   19.794183][  T199]  vti_init_net (net/ipv4/ip_vti.c:517)
[   19.794315][  T199]  ops_init (net/core/net_namespace.c:137)
[   19.794415][  T199]  setup_net (net/core/net_namespace.c:446)
[   19.794517][  T199]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.794653][  T199]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.794788][  T199]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.794921][  T199]  copy_net_ns (net/core/net_namespace.c:579)
[   19.795053][  T199]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.795190][  T199]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.795322][  T199]  ksys_unshare (kernel/fork.c:3243)
[   19.795455][  T199]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.795588][  T199]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.795725][  T199]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.795862][  T199]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   19.795995][  T199]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.796128][  T199]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.796259][  T199]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.796393][  T199]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.796524][  T199]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.796661][  T199]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.796797][  T199]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.796961][  T199] RIP: 0033:0x7fa0a8f22bcb
[   19.797098][  T199] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.797568][  T199] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.797774][  T199] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   19.797971][  T199] RDX: 0000000000406460 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   19.798167][  T199] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   19.798364][  T199] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   19.798560][  T199] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   19.802705][  T199] ------------[ cut here ]------------
| [   19.802846][  T199] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/199
| [   19.803103][  T199] Modules linked in:
| [   19.803499][  T199] Tainted: [W]=WARN
[   19.803597][  T199] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.803767][  T199] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.803934][  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
[   19.804395][  T199] RSP: 0018:ffa0000000557a78 EFLAGS: 00010286
[   19.804558][  T199] RAX: 00000000ffffffa6 RBX: ff1100000a14da80 RCX: 1ff40000000aaf15
[   19.804760][  T199] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a14db3c
[   19.804955][  T199] RBP: ff11000004c74000 R08: 1fe2200001429b69 R09: ff1100000c1aae80
[   19.805150][  T199] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   19.805344][  T199] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000004c74000
[   19.805539][  T199] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   19.805776][  T199] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.805939][  T199] CR2: 00007fa0a8f22bc0 CR3: 0000000004be8006 CR4: 0000000000771ef0
[   19.806136][  T199] PKRU: 55555554
[   19.806233][  T199] Call Trace:
[   19.806330][  T199]  <TASK>
[   19.806398][  T199]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.806529][  T199]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.806664][  T199]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.806767][  T199]  register_netdevice (net/core/dev.c:11488)
[   19.806901][  T199]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.807062][  T199]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.807194][  T199]  register_netdev (net/core/dev.c:11552)
[   19.807324][  T199]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   19.807457][  T199]  ops_init (net/core/net_namespace.c:137)
[   19.807556][  T199]  setup_net (net/core/net_namespace.c:446)
[   19.807661][  T199]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.807795][  T199]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.807926][  T199]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.808058][  T199]  copy_net_ns (net/core/net_namespace.c:579)
[   19.808189][  T199]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.808322][  T199]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.808453][  T199]  ksys_unshare (kernel/fork.c:3243)
[   19.808583][  T199]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.808717][  T199]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.808853][  T199]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.808983][  T199]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   19.809113][  T199]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.809244][  T199]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.809373][  T199]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.809503][  T199]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.809637][  T199]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.809774][  T199]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.809904][  T199]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.810064][  T199] RIP: 0033:0x7fa0a8f22bcb
[   19.810198][  T199] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.810663][  T199] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.810864][  T199] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   19.811056][  T199] RDX: 0000000000406460 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   19.811249][  T199] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   19.811443][  T199] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   19.811645][  T199] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   19.813494][   T12] ------------[ cut here ]------------
| [   19.813621][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   19.813865][   T12] Modules linked in:
| [   19.814224][   T12] Tainted: [W]=WARN
[   19.814313][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.814461][   T12] Workqueue: netns cleanup_net
[   19.814583][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.814746][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.815179][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   19.815335][   T12] RAX: 00000000ffffffa6 RBX: ff1100000960e040 RCX: 1ff4000000018ed5
[   19.815512][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000960e0fc
[   19.815693][   T12] RBP: ff1100000f8b1000 R08: 1fe22000012c1c21 R09: ff11000001aed1d0
[   19.815875][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   19.816054][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   19.816233][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   19.816440][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.816590][   T12] CR2: 00000000004090e8 CR3: 00000000108d9003 CR4: 0000000000771ef0
[   19.816785][   T12] PKRU: 55555554
[   19.816877][   T12] Call Trace:
[   19.816965][   T12]  <TASK>
[   19.817027][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   19.817179][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.817330][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   19.817451][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   19.817572][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   19.817694][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   19.817819][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   19.817941][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   19.818062][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   19.818179][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.818302][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   19.818422][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.818540][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.818664][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.818787][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.818908][   T12]  process_one_work (kernel/workqueue.c:3314)
[   19.819029][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.819147][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.819273][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.819396][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.819514][   T12]  kthread (kernel/kthread.c:436)
[   19.819607][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.819762][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.819882][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.820001][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.820149][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.820266][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.820384][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.839150][  T199] ------------[ cut here ]------------
| [   19.839328][  T199] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/199
| [   19.839637][  T199] Modules linked in:
| [   19.840143][  T199] Tainted: [W]=WARN
[   19.840289][  T199] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.840499][  T199] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.840723][  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
[   19.841248][  T199] RSP: 0018:ffa0000000557a68 EFLAGS: 00010286
[   19.841460][  T199] RAX: 00000000ffffffa6 RBX: ff1100000946b540 RCX: 1ff40000000aaf13
[   19.841710][  T199] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000946b5fc
[   19.841964][  T199] RBP: ff11000004e51000 R08: 1fe220000128d6c1 R09: ff1100000c1aae80
[   19.842205][  T199] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   19.842446][  T199] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000004e51000
[   19.842699][  T199] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   19.842982][  T199] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.843193][  T199] CR2: 00007fa0a901cb20 CR3: 0000000004be8004 CR4: 0000000000771ef0
[   19.843437][  T199] PKRU: 55555554
[   19.843582][  T199] Call Trace:
[   19.843746][  T199]  <TASK>
[   19.843861][  T199]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.844041][  T199]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.844218][  T199]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.844366][  T199]  register_netdevice (net/core/dev.c:11488)
[   19.844547][  T199]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.844779][  T199]  register_netdev (net/core/dev.c:11552)
[   19.844959][  T199]  sit_init_net (net/ipv6/sit.c:1860)
[   19.845141][  T199]  ops_init (net/core/net_namespace.c:137)
[   19.845293][  T199]  setup_net (net/core/net_namespace.c:446)
[   19.845439][  T199]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.845622][  T199]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.845814][  T199]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.845994][  T199]  copy_net_ns (net/core/net_namespace.c:579)
[   19.846173][  T199]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.846354][  T199]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.846535][  T199]  ksys_unshare (kernel/fork.c:3243)
[   19.846720][  T199]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.846915][  T199]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.847090][  T199]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.847270][  T199]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   19.847450][  T199]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.847636][  T199]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.847828][  T199]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.848006][  T199]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.848184][  T199]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.848362][  T199]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.848540][  T199]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.848770][  T199] RIP: 0033:0x7fa0a8f22bcb
[   19.848954][  T199] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.849465][  T199] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.849713][  T199] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   19.849966][  T199] RDX: 0000000000406460 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   19.850210][  T199] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   19.850451][  T199] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   19.850699][  T199] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   19.855814][  T199] ------------[ cut here ]------------
| [   19.855992][  T199] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/199
| [   19.856301][  T199] Modules linked in:
| [   19.856819][  T199] Tainted: [W]=WARN
[   19.856965][  T199] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.857176][  T199] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.857394][  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
[   19.857928][  T199] RSP: 0018:ffa0000000557a78 EFLAGS: 00010286
[   19.858143][  T199] RAX: 00000000ffffffa6 RBX: ff1100000b5718c0 RCX: 1ff40000000aaf15
[   19.858386][  T199] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b57197c
[   19.858635][  T199] RBP: ff1100000e999000 R08: 1fe22000016ae331 R09: ff1100000c1aae80
[   19.858895][  T199] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   19.859138][  T199] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e999000
[   19.859384][  T199] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   19.859670][  T199] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.859897][  T199] CR2: 00007fa0a901cb20 CR3: 0000000004be8004 CR4: 0000000000771ef0
[   19.860144][  T199] PKRU: 55555554
[   19.860291][  T199] Call Trace:
[   19.860437][  T199]  <TASK>
[   19.860553][  T199]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.860758][  T199]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.860942][  T199]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.861091][  T199]  register_netdevice (net/core/dev.c:11488)
[   19.861280][  T199]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.861491][  T199]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.861683][  T199]  register_netdev (net/core/dev.c:11552)
[   19.861877][  T199]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   19.862060][  T199]  ops_init (net/core/net_namespace.c:137)
[   19.862210][  T199]  setup_net (net/core/net_namespace.c:446)
[   19.862359][  T199]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.862542][  T199]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.862744][  T199]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.862927][  T199]  copy_net_ns (net/core/net_namespace.c:579)
[   19.863110][  T199]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.863293][  T199]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.863474][  T199]  ksys_unshare (kernel/fork.c:3243)
[   19.863662][  T199]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.863859][  T199]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.864041][  T199]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.864222][  T199]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   19.864405][  T199]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.864587][  T199]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.864785][  T199]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.864965][  T199]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.865146][  T199]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.865328][  T199]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.865510][  T199]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.865729][  T199] RIP: 0033:0x7fa0a8f22bcb
[   19.865928][  T199] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.866442][  T199] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.866692][  T199] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   19.866948][  T199] RDX: 0000000000406460 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   19.867189][  T199] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   19.867430][  T199] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   19.867680][  T199] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   20.879518][   T12] ------------[ cut here ]------------
| [   20.879690][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   20.879962][   T12] Modules linked in:
| [   20.880363][   T12] Tainted: [W]=WARN
[   20.880456][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.880625][   T12] Workqueue: netns cleanup_net
[   20.880759][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.880931][   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
[   20.881392][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   20.881545][   T12] RAX: 00000000ffffffa6 RBX: ff1100000a14dc40 RCX: 1ff4000000018eed
[   20.881729][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a14dcfc
[   20.881909][   T12] RBP: ff1100000e999000 R08: 1fe2200001429ba1 R09: ff11000001aed1d0
[   20.882112][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   20.882295][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   20.882481][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   20.882698][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.882862][   T12] CR2: 00000000004090e8 CR3: 00000000108d9003 CR4: 0000000000771ef0
[   20.883056][   T12] PKRU: 55555554
[   20.883152][   T12] Call Trace:
[   20.883240][   T12]  <TASK>
[   20.883301][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   20.883456][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   20.883601][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   20.883739][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   20.883862][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   20.883984][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   20.884101][   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)
[   20.884221][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   20.884339][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   20.884454][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.884572][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   20.884695][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   20.884836][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   20.884957][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   20.885073][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.885192][   T12]  process_one_work (kernel/workqueue.c:3314)
[   20.885312][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   20.885428][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.885552][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   20.885677][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   20.885799][   T12]  kthread (kernel/kthread.c:436)
[   20.885892][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   20.886040][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   20.886158][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   20.886279][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   20.886428][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   20.886546][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   20.886666][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   20.888894][   T12] ------------[ cut here ]------------
| [   20.889013][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   20.889243][   T12] Modules linked in:
| [   20.889607][   T12] Tainted: [W]=WARN
[   20.889696][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.889848][   T12] Workqueue: netns cleanup_net
[   20.889970][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.890120][   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
[   20.890533][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   20.890684][   T12] RAX: 00000000ffffffa6 RBX: ff110000092cd1c0 RCX: 1ff4000000018eed
[   20.890862][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000092cd27c
[   20.891034][   T12] RBP: ff11000004e51000 R08: 1fe2200001259a51 R09: ff11000001aed1d0
[   20.891211][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   20.891385][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   20.891563][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   20.891775][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.891920][   T12] CR2: 00000000004090e8 CR3: 00000000108d9003 CR4: 0000000000771ef0
[   20.892097][   T12] PKRU: 55555554
[   20.892184][   T12] Call Trace:
[   20.892272][   T12]  <TASK>
[   20.892333][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   20.892486][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   20.892631][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   20.892753][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   20.892872][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   20.892988][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   20.893107][   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)
[   20.893227][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   20.893345][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   20.893466][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.893589][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   20.893710][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   20.893829][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   20.893948][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   20.894062][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.894180][   T12]  process_one_work (kernel/workqueue.c:3314)
[   20.894301][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   20.894417][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.894536][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   20.894661][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   20.894782][   T12]  kthread (kernel/kthread.c:436)
[   20.894874][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   20.895018][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   20.895139][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   20.895257][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   20.895407][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   20.895528][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   20.895649][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   20.897801][   T12] ------------[ cut here ]------------
| [   20.897916][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   20.898143][   T12] Modules linked in:
| [   20.898492][   T12] Tainted: [W]=WARN
[   20.898581][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.898729][   T12] Workqueue: netns cleanup_net
[   20.898855][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.899015][   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
[   20.899430][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   20.899576][   T12] RAX: 00000000ffffffa6 RBX: ff1100000d1f18c0 RCX: 1ff4000000018eed
[   20.899760][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d1f197c
[   20.899935][   T12] RBP: ff11000004c74000 R08: 1fe2200001a3e331 R09: ff11000001aed1d0
[   20.900108][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   20.900285][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   20.900467][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   20.900684][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.900832][   T12] CR2: 00000000004090e8 CR3: 00000000108d9003 CR4: 0000000000771ef0
[   20.901006][   T12] PKRU: 55555554
[   20.901091][   T12] Call Trace:
[   20.901177][   T12]  <TASK>
[   20.901237][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   20.901387][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   20.901532][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   20.901653][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   20.901775][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   20.901890][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   20.902008][   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)
[   20.902124][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   20.902245][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   20.902361][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.902480][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   20.902598][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   20.902721][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   20.902844][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   20.902961][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.903084][   T12]  process_one_work (kernel/workqueue.c:3314)
[   20.903207][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   20.903328][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.903450][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   20.903571][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   20.903691][   T12]  kthread (kernel/kthread.c:436)
[   20.903783][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   20.903929][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   20.904047][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   20.904165][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   20.904310][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   20.904427][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   20.904543][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   20.906492][   T12] ------------[ cut here ]------------
| [   20.906610][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   20.906845][   T12] Modules linked in:
| [   20.907196][   T12] Tainted: [W]=WARN
[   20.907285][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.907429][   T12] Workqueue: netns cleanup_net
[   20.907550][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.907704][   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
[   20.908127][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   20.908273][   T12] RAX: 00000000ffffffa6 RBX: ff1100000d1f1380 RCX: 1ff4000000018eed
[   20.908451][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d1f143c
[   20.908630][   T12] RBP: ff11000005094000 R08: 1fe2200001a3e289 R09: ff11000001aed1d0
[   20.908806][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   20.908981][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   20.909155][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   20.909357][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.909509][   T12] CR2: 00000000004090e8 CR3: 00000000108d9003 CR4: 0000000000771ef0
[   20.909688][   T12] PKRU: 55555554
[   20.909783][   T12] Call Trace:
[   20.909870][   T12]  <TASK>
[   20.909931][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   20.910080][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   20.910225][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   20.910343][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   20.910467][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   20.910584][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   20.910704][   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)
[   20.910828][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   20.910947][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   20.911063][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.911184][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   20.911300][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   20.911416][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   20.911535][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   20.911655][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.911777][   T12]  process_one_work (kernel/workqueue.c:3314)
[   20.911897][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   20.912013][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.912136][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   20.912258][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   20.912374][   T12]  kthread (kernel/kthread.c:436)
[   20.912463][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   20.912611][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   20.912729][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   20.912853][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   20.913001][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   20.913120][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   20.913238][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   20.922203][   T12] ------------[ cut here ]------------
| [   20.922330][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   20.922560][   T12] Modules linked in:
| [   20.922926][   T12] Tainted: [W]=WARN
[   20.923014][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.923161][   T12] Workqueue: netns cleanup_net
[   20.923280][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.923444][   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
[   20.924359][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   20.924507][   T12] RAX: 00000000ffffffa6 RBX: ff1100000d1f1000 RCX: 1ff4000000018eed
[   20.924690][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d1f10bc
[   20.924913][   T12] RBP: ff11000010231000 R08: 1fe2200001a3e219 R09: ff11000001aed1d0
[   20.925134][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   20.925308][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   20.925483][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   20.925694][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.925891][   T12] CR2: 00000000004090e8 CR3: 00000000108d9003 CR4: 0000000000771ef0
[   20.926069][   T12] PKRU: 55555554
[   20.926158][   T12] Call Trace:
[   20.926245][   T12]  <TASK>
[   20.926306][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   20.926456][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   20.926601][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   20.926723][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   20.926887][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   20.927008][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   20.927126][   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)
[   20.927245][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   20.927364][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   20.927481][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.927602][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   20.927725][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   20.927888][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   20.928009][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   20.928126][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.928249][   T12]  process_one_work (kernel/workqueue.c:3314)
[   20.928369][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   20.928486][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.928610][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   20.928784][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   20.928903][   T12]  kthread (kernel/kthread.c:436)
[   20.928992][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   20.929136][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   20.929255][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   20.929373][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   20.929519][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   20.929646][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   20.929812][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   20.938591][  T201] ------------[ cut here ]------------
| [   20.938796][  T201] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/201
| [   20.939110][  T201] Modules linked in:
| [   20.939610][  T201] Tainted: [W]=WARN
[   20.939772][  T201] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.939984][  T201] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.940208][  T201] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.940727][  T201] RSP: 0018:ffa00000008f7a80 EFLAGS: 00010286
[   20.940956][  T201] RAX: 00000000ffffffa6 RBX: ff1100000c6e6ac0 RCX: 1ff400000011ef16
[   20.941203][  T201] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c6e6b7c
[   20.941444][  T201] RBP: ff11000005291000 R08: 1fe22000018dcd71 R09: ff1100000fe78b80
[   20.941694][  T201] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   20.941949][  T201] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000005291000
[   20.942198][  T201] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   20.942474][  T201] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.942695][  T201] CR2: 00007fa0a8f22bc0 CR3: 0000000004be8005 CR4: 0000000000771ef0
[   20.942948][  T201] PKRU: 55555554
[   20.943091][  T201] Call Trace:
[   20.943237][  T201]  <TASK>
[   20.943351][  T201]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.943535][  T201]  ? notifier_call_chain (kernel/notifier.c:85)
[   20.943721][  T201]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.943882][  T201]  register_netdevice (net/core/dev.c:11488)
[   20.944065][  T201]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   20.944278][  T201]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   20.944458][  T201]  register_netdev (net/core/dev.c:11552)
[   20.944643][  T201]  loopback_net_init (drivers/net/loopback.c:218)
[   20.944842][  T201]  ops_init (net/core/net_namespace.c:137)
[   20.944990][  T201]  setup_net (net/core/net_namespace.c:446)
[   20.945138][  T201]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   20.945315][  T201]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   20.945494][  T201]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   20.945685][  T201]  copy_net_ns (net/core/net_namespace.c:579)
[   20.945880][  T201]  create_new_namespaces (kernel/nsproxy.c:132)
[   20.946067][  T201]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   20.946246][  T201]  ksys_unshare (kernel/fork.c:3243)
[   20.946424][  T201]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.946610][  T201]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   20.946802][  T201]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.946984][  T201]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   20.947165][  T201]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.947347][  T201]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   20.947526][  T201]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   20.947713][  T201]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.947904][  T201]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.948084][  T201]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.948263][  T201]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.948472][  T201] RIP: 0033:0x7fa0a8f22bcb
[   20.948665][  T201] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   20.949192][  T201] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   20.949437][  T201] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   20.949683][  T201] RDX: 0000000000406460 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   20.949940][  T201] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   20.950183][  T201] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   20.950424][  T201] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   20.954729][  T201] ------------[ cut here ]------------
| [   20.954916][  T201] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/201
| [   20.955220][  T201] Modules linked in:
| [   20.955719][  T201] Tainted: [W]=WARN
[   20.955876][  T201] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.956086][  T201] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.956302][  T201] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.956831][  T201] RSP: 0018:ffa00000008f7918 EFLAGS: 00010286
[   20.957042][  T201] RAX: 00000000ffffffa6 RBX: ff1100000d1f0900 RCX: 1ff400000011eee9
[   20.957283][  T201] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d1f09bc
[   20.957525][  T201] RBP: ff1100000f134000 R08: 1fe2200001a3e139 R09: ff1100000fe78b80
[   20.957785][  T201] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   20.958027][  T201] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f134000
[   20.958270][  T201] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   20.958545][  T201] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.958778][  T201] CR2: 00007fa0a8f22bc0 CR3: 0000000004be8005 CR4: 0000000000771ef0
[   20.959022][  T201] PKRU: 55555554
[   20.959165][  T201] Call Trace:
[   20.959310][  T201]  <TASK>
[   20.959424][  T201]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.959611][  T201]  ? notifier_call_chain (kernel/notifier.c:85)
[   20.959802][  T201]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.959953][  T201]  register_netdevice (net/core/dev.c:11488)
[   20.960132][  T201]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   20.960340][  T201]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   20.960520][  T201]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   20.960704][  T201]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   20.960897][  T201]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   20.961076][  T201]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   20.961257][  T201]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   20.961436][  T201]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   20.961622][  T201]  ops_init (net/core/net_namespace.c:137)
[   20.961782][  T201]  setup_net (net/core/net_namespace.c:446)
[   20.961928][  T201]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   20.962103][  T201]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   20.962281][  T201]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   20.962463][  T201]  copy_net_ns (net/core/net_namespace.c:579)
[   20.962648][  T201]  create_new_namespaces (kernel/nsproxy.c:132)
[   20.962841][  T201]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   20.963018][  T201]  ksys_unshare (kernel/fork.c:3243)
[   20.963194][  T201]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.963371][  T201]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   20.963546][  T201]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.963749][  T201]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   20.963927][  T201]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.964107][  T201]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   20.964282][  T201]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   20.964458][  T201]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.964643][  T201]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.964832][  T201]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.965010][  T201]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.965220][  T201] RIP: 0033:0x7fa0a8f22bcb
[   20.965403][  T201] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   20.965933][  T201] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   20.966177][  T201] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   20.966421][  T201] RDX: 0000000000406460 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   20.966669][  T201] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   20.966926][  T201] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   20.967166][  T201] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   20.971895][  T201] ------------[ cut here ]------------
| [   20.972073][  T201] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/201
| [   20.972382][  T201] Modules linked in:
| [   20.973036][  T201] Tainted: [W]=WARN
[   20.973239][  T201] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.973508][  T201] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.973808][  T201] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.974382][  T201] RSP: 0018:ffa00000008f78f8 EFLAGS: 00010286
[   20.974662][  T201] RAX: 00000000ffffffa6 RBX: ff110000054ffc40 RCX: 1ff400000011eee5
[   20.974971][  T201] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000054ffcfc
[   20.975285][  T201] RBP: ff1100000e7a1000 R08: 1fe2200000a9ffa1 R09: ff1100000fe78b80
[   20.975583][  T201] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   20.975902][  T201] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e7a1000
[   20.976203][  T201] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   20.976542][  T201] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.976830][  T201] CR2: 00007fa0a8f22bc0 CR3: 0000000004be8005 CR4: 0000000000771ef0
[   20.977135][  T201] PKRU: 55555554
[   20.977335][  T201] Call Trace:
[   20.977535][  T201]  <TASK>
[   20.977709][  T201]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.977959][  T201]  ? notifier_call_chain (kernel/notifier.c:85)
[   20.978196][  T201]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.978400][  T201]  register_netdevice (net/core/dev.c:11488)
[   20.978645][  T201]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   20.978928][  T201]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   20.979164][  T201]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   20.979400][  T201]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   20.979643][  T201]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   20.979896][  T201]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   20.980132][  T201]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   20.980366][  T201]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   20.980602][  T201]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   20.980863][  T201]  vti_init_net (net/ipv4/ip_vti.c:517)
[   20.981098][  T201]  ops_init (net/core/net_namespace.c:137)
[   20.981304][  T201]  setup_net (net/core/net_namespace.c:446)
[   20.981507][  T201]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   20.981767][  T201]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   20.981986][  T201]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   20.982166][  T201]  copy_net_ns (net/core/net_namespace.c:579)
[   20.982346][  T201]  create_new_namespaces (kernel/nsproxy.c:132)
[   20.982529][  T201]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   20.982716][  T201]  ksys_unshare (kernel/fork.c:3243)
[   20.982906][  T201]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.983089][  T201]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   20.983266][  T201]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.983447][  T201]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   20.983636][  T201]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.983830][  T201]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   20.984008][  T201]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   20.984185][  T201]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.984363][  T201]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.984545][  T201]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.984746][  T201]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.984956][  T201] RIP: 0033:0x7fa0a8f22bcb
[   20.985140][  T201] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   20.985661][  T201] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   20.985914][  T201] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   20.986157][  T201] RDX: 0000000000406460 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   20.986397][  T201] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   20.986650][  T201] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   20.986906][  T201] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   20.992181][  T201] ------------[ cut here ]------------
| [   20.992324][  T201] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: scm_rights/201
| [   20.992582][  T201] Modules linked in:
| [   20.993042][  T201] Tainted: [W]=WARN
[   20.993143][  T201] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.993325][  T201] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.993493][  T201] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.994021][  T201] RSP: 0018:ffa00000008f7a78 EFLAGS: 00010286
[   20.994188][  T201] RAX: 00000000ffffffa6 RBX: ff11000009851540 RCX: 1ff400000011ef15
[   20.994382][  T201] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000098515fc
[   20.994575][  T201] RBP: ff1100000ead1000 R08: 1fe220000130a2c1 R09: ff1100000fe78b80
[   20.994829][  T201] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   20.995024][  T201] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000ead1000
[   20.995221][  T201] FS:  00007fa0a8e27740(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   20.995450][  T201] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.995617][  T201] CR2: 00000000004090e8 CR3: 0000000004be8004 CR4: 0000000000771ef0
[   20.995873][  T201] PKRU: 55555554
[   20.995970][  T201] Call Trace:
[   20.996066][  T201]  <TASK>
[   20.996133][  T201]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.996264][  T201]  ? notifier_call_chain (kernel/notifier.c:85)
[   20.996394][  T201]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.996494][  T201]  register_netdevice (net/core/dev.c:11488)
[   20.996631][  T201]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   20.996851][  T201]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.996984][  T201]  register_netdev (net/core/dev.c:11552)
[   20.997114][  T201]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   20.997247][  T201]  ops_init (net/core/net_namespace.c:137)
[   20.997347][  T201]  setup_net (net/core/net_namespace.c:446)
[   20.997446][  T201]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   20.997575][  T201]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   20.997712][  T201]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   20.997897][  T201]  copy_net_ns (net/core/net_namespace.c:579)
[   20.998028][  T201]  create_new_namespaces (kernel/nsproxy.c:132)
[   20.998161][  T201]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   20.998290][  T201]  ksys_unshare (kernel/fork.c:3243)
[   20.998421][  T201]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.998551][  T201]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   20.998685][  T201]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.998837][  T201]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   20.998969][  T201]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.999101][  T201]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   20.999230][  T201]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   20.999361][  T201]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.999490][  T201]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.999637][  T201]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.999774][  T201]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.999937][  T201] RIP: 0033:0x7fa0a8f22bcb
[   21.000074][  T201] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   21.000538][  T201] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   21.000745][  T201] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   21.000939][  T201] RDX: 0000000000406460 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   21.001133][  T201] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   21.001329][  T201] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   21.001524][  T201] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   21.005717][  T201] ------------[ cut here ]------------
| [   21.006255][  T201] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: scm_rights/201
| [   21.006519][  T201] Modules linked in:
| [   21.006931][  T201] Tainted: [W]=WARN
[   21.007030][  T201] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.007194][  T201] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   21.007365][  T201] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   21.007840][  T201] RSP: 0018:ffa00000008f7a68 EFLAGS: 00010286
[   21.008006][  T201] RAX: 00000000ffffffa6 RBX: ff1100000eb39540 RCX: 1ff400000011ef13
[   21.008203][  T201] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000eb395fc
[   21.008395][  T201] RBP: ff1100000e964000 R08: 1fe2200001d672c1 R09: ff1100000fe78b80
[   21.008591][  T201] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   21.008796][  T201] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e964000
[   21.008995][  T201] FS:  00007fa0a8e27740(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   21.009222][  T201] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   21.009384][  T201] CR2: 00000000004090e8 CR3: 0000000004be8005 CR4: 0000000000771ef0
[   21.009581][  T201] PKRU: 55555554
[   21.009683][  T201] Call Trace:
[   21.009786][  T201]  <TASK>
[   21.009854][  T201]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   21.009987][  T201]  ? notifier_call_chain (kernel/notifier.c:85)
[   21.010118][  T201]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   21.010218][  T201]  register_netdevice (net/core/dev.c:11488)
[   21.010350][  T201]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   21.010517][  T201]  register_netdev (net/core/dev.c:11552)
[   21.010650][  T201]  sit_init_net (net/ipv6/sit.c:1860)
[   21.010788][  T201]  ops_init (net/core/net_namespace.c:137)
[   21.010890][  T201]  setup_net (net/core/net_namespace.c:446)
[   21.010990][  T201]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   21.011120][  T201]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   21.011253][  T201]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   21.011388][  T201]  copy_net_ns (net/core/net_namespace.c:579)
[   21.011521][  T201]  create_new_namespaces (kernel/nsproxy.c:132)
[   21.011658][  T201]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   21.011799][  T201]  ksys_unshare (kernel/fork.c:3243)
[   21.011929][  T201]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   21.012060][  T201]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   21.012194][  T201]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   21.012325][  T201]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   21.012458][  T201]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   21.012591][  T201]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   21.012728][  T201]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   21.012865][  T201]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   21.012996][  T201]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   21.013127][  T201]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   21.013258][  T201]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   21.013421][  T201] RIP: 0033:0x7fa0a8f22bcb
[   21.013559][  T201] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   21.014033][  T201] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   21.014231][  T201] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   21.014427][  T201] RDX: 0000000000406460 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   21.014628][  T201] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   21.014828][  T201] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   21.015024][  T201] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   21.017137][   T12] ------------[ cut here ]------------
| [   21.017259][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   21.017492][   T12] Modules linked in:
| [   21.017865][   T12] Tainted: [W]=WARN
[   21.017954][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.018113][   T12] Workqueue: netns cleanup_net
[   21.018238][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   21.018398][   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
[   21.018827][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   21.018979][   T12] RAX: 00000000ffffffa6 RBX: ff110000096c31c0 RCX: 1ff4000000018ed5
[   21.019158][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000096c327c
[   21.019334][   T12] RBP: ff1100000f2b1000 R08: 1fe22000012d8651 R09: ff11000001aed1d0
[   21.019512][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   21.019693][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   21.019874][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   21.020087][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   21.020237][   T12] CR2: 00000000004090e8 CR3: 0000000004be8004 CR4: 0000000000771ef0
[   21.020415][   T12] PKRU: 55555554
[   21.020503][   T12] Call Trace:
[   21.020601][   T12]  <TASK>
[   21.020668][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   21.020824][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   21.020974][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   21.021097][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   21.021218][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   21.021337][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   21.021455][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   21.021575][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   21.021699][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   21.021820][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   21.021942][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   21.022060][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   21.022177][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   21.022296][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   21.022412][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   21.022532][   T12]  process_one_work (kernel/workqueue.c:3314)
[   21.022657][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   21.022778][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   21.022901][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   21.023028][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   21.023147][   T12]  kthread (kernel/kthread.c:436)
[   21.023237][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   21.023386][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   21.023507][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   21.023633][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   21.023786][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   21.023904][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   21.024023][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   21.028882][  T201] ------------[ cut here ]------------
| [   21.029020][  T201] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: scm_rights/201
| [   21.029276][  T201] Modules linked in:
| [   21.029679][  T201] Tainted: [W]=WARN
[   21.029780][  T201] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.029944][  T201] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   21.030114][  T201] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   21.030577][  T201] RSP: 0018:ffa00000008f7a78 EFLAGS: 00010286
[   21.030748][  T201] RAX: 00000000ffffffa6 RBX: ff1100000946a200 RCX: 1ff400000011ef15
[   21.030941][  T201] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000946a2bc
[   21.031135][  T201] RBP: ff1100000f36c000 R08: 1fe220000128d459 R09: ff1100000fe78b80
[   21.031331][  T201] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   21.031526][  T201] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f36c000
[   21.031729][  T201] FS:  00007fa0a8e27740(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   21.031964][  T201] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   21.032128][  T201] CR2: 00000000004090e8 CR3: 0000000004be8005 CR4: 0000000000771ef0
[   21.032326][  T201] PKRU: 55555554
[   21.032425][  T201] Call Trace:
[   21.032523][  T201]  <TASK>
[   21.032591][  T201]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   21.032724][  T201]  ? notifier_call_chain (kernel/notifier.c:85)
[   21.032860][  T201]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   21.032960][  T201]  register_netdevice (net/core/dev.c:11488)
[   21.033093][  T201]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   21.033255][  T201]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   21.033387][  T201]  register_netdev (net/core/dev.c:11552)
[   21.033519][  T201]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   21.033654][  T201]  ops_init (net/core/net_namespace.c:137)
[   21.033759][  T201]  setup_net (net/core/net_namespace.c:446)
[   21.033859][  T201]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   21.033988][  T201]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   21.034120][  T201]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   21.034252][  T201]  copy_net_ns (net/core/net_namespace.c:579)
[   21.034384][  T201]  create_new_namespaces (kernel/nsproxy.c:132)
[   21.034518][  T201]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   21.034653][  T201]  ksys_unshare (kernel/fork.c:3243)
[   21.034787][  T201]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   21.034918][  T201]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   21.035049][  T201]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   21.035180][  T201]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   21.035310][  T201]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   21.035443][  T201]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   21.035574][  T201]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   21.035712][  T201]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   21.035845][  T201]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   21.035978][  T201]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   21.036108][  T201]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   21.036270][  T201] RIP: 0033:0x7fa0a8f22bcb
[   21.036406][  T201] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   21.036879][  T201] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   21.037078][  T201] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   21.037271][  T201] RDX: 0000000000406460 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   21.037465][  T201] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   21.037664][  T201] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   21.037866][  T201] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   22.045331][   T12] ------------[ cut here ]------------
| [   22.045504][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   22.045769][   T12] Modules linked in:
| [   22.046153][   T12] Tainted: [W]=WARN
[   22.046243][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.046397][   T12] Workqueue: netns cleanup_net
[   22.046527][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   22.046691][   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
[   22.047139][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   22.047291][   T12] RAX: 00000000ffffffa6 RBX: ff110000027b6e40 RCX: 1ff4000000018eed
[   22.047466][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000027b6efc
[   22.047646][   T12] RBP: ff1100000f36c000 R08: 1fe22000004f6de1 R09: ff11000001aed1d0
[   22.047832][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   22.048006][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   22.048185][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   22.048392][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.048544][   T12] CR2: 00000000004090e8 CR3: 0000000044d4d005 CR4: 0000000000771ef0
[   22.048725][   T12] PKRU: 55555554
[   22.048821][   T12] Call Trace:
[   22.048918][   T12]  <TASK>
[   22.048981][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   22.049132][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   22.049282][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   22.049401][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   22.049524][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   22.049646][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   22.049773][   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)
[   22.049895][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   22.050016][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   22.050133][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.050254][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   22.050373][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   22.050492][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   22.050616][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   22.050739][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.050861][   T12]  process_one_work (kernel/workqueue.c:3314)
[   22.050984][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   22.051102][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.051224][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   22.051348][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   22.051466][   T12]  kthread (kernel/kthread.c:436)
[   22.051556][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   22.051706][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   22.051830][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   22.051960][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   22.052107][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   22.052226][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   22.052343][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   22.054606][   T12] ------------[ cut here ]------------
| [   22.054728][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   22.054968][   T12] Modules linked in:
| [   22.055336][   T12] Tainted: [W]=WARN
[   22.055426][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.055577][   T12] Workqueue: netns cleanup_net
[   22.055708][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   22.055865][   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
[   22.056281][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   22.056436][   T12] RAX: 00000000ffffffa6 RBX: ff110000027b7540 RCX: 1ff4000000018eed
[   22.056625][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000027b75fc
[   22.056805][   T12] RBP: ff1100000e964000 R08: 1fe22000004f6ec1 R09: ff11000001aed1d0
[   22.056978][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   22.057154][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   22.057330][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   22.057535][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.057690][   T12] CR2: 00000000004090e8 CR3: 0000000044d4d005 CR4: 0000000000771ef0
[   22.057876][   T12] PKRU: 55555554
[   22.057965][   T12] Call Trace:
[   22.058052][   T12]  <TASK>
[   22.058113][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   22.058264][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   22.058408][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   22.058527][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   22.058656][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   22.058777][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   22.058897][   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)
[   22.059019][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   22.059140][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   22.059257][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.059380][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   22.059500][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   22.059621][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   22.059748][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   22.059867][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.059992][   T12]  process_one_work (kernel/workqueue.c:3314)
[   22.060115][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   22.060233][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.060355][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   22.060480][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   22.060599][   T12]  kthread (kernel/kthread.c:436)
[   22.060694][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   22.060850][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   22.060967][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   22.061086][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   22.061236][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   22.061359][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   22.061476][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   22.071201][   T12] ------------[ cut here ]------------
| [   22.071326][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   22.071560][   T12] Modules linked in:
| [   22.072786][   T12] Tainted: [W]=WARN
[   22.072926][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.073085][   T12] Workqueue: netns cleanup_net
[   22.073209][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   22.073361][   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
[   22.073841][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   22.073999][   T12] RAX: 00000000ffffffa6 RBX: ff110000027b7c40 RCX: 1ff4000000018eed
[   22.074172][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000027b7cfc
[   22.074344][   T12] RBP: ff1100000ead1000 R08: 1fe22000004f6fa1 R09: ff11000001aed1d0
[   22.074534][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   22.074714][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   22.074936][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   22.075140][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.075287][   T12] CR2: 00000000004090e8 CR3: 0000000044d4d005 CR4: 0000000000771ef0
[   22.075464][   T12] PKRU: 55555554
[   22.075551][   T12] Call Trace:
[   22.075642][   T12]  <TASK>
[   22.075703][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   22.075903][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   22.076049][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   22.076168][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   22.076288][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   22.076405][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   22.076525][   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)
[   22.076648][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   22.076815][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   22.076936][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.077056][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   22.077172][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   22.077289][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   22.077413][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   22.077533][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.077656][   T12]  process_one_work (kernel/workqueue.c:3314)
[   22.077823][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   22.077940][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.078060][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   22.078182][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   22.078300][   T12]  kthread (kernel/kthread.c:436)
[   22.078394][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   22.078546][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   22.078668][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   22.078836][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   22.078982][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   22.079100][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   22.079219][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   22.088307][   T12] ------------[ cut here ]------------
| [   22.088447][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   22.088690][   T12] Modules linked in:
| [   22.089780][   T12] Tainted: [W]=WARN
[   22.089875][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.090022][   T12] Workqueue: netns cleanup_net
[   22.090147][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   22.090301][   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
[   22.090737][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   22.090890][   T12] RAX: 00000000ffffffa6 RBX: ff1100000a14c900 RCX: 1ff4000000018eed
[   22.091069][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a14c9bc
[   22.091246][   T12] RBP: ff1100000e7a1000 R08: 1fe2200001429939 R09: ff11000001aed1d0
[   22.091421][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   22.091598][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   22.091786][   T12] FS:  0000000000000000(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   22.091999][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.092152][   T12] CR2: 00007fa0a8f22bc0 CR3: 000000001099d004 CR4: 0000000000771ef0
[   22.092329][   T12] PKRU: 55555554
[   22.092417][   T12] Call Trace:
[   22.092506][   T12]  <TASK>
[   22.092567][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   22.092722][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   22.092874][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   22.092993][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   22.093113][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   22.093235][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   22.093356][   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)
[   22.093477][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   22.093598][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   22.093717][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.093844][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   22.093964][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   22.094082][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   22.094203][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   22.094321][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.094442][   T12]  process_one_work (kernel/workqueue.c:3314)
[   22.094564][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   22.094687][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.094814][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   22.094937][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   22.095057][   T12]  kthread (kernel/kthread.c:436)
[   22.095146][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   22.095291][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   22.095409][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   22.095529][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   22.095679][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   22.095803][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   22.095922][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   22.097885][   T12] ------------[ cut here ]------------
| [   22.097999][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   22.098227][   T12] Modules linked in:
| [   22.098585][   T12] Tainted: [W]=WARN
[   22.098675][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.098826][   T12] Workqueue: netns cleanup_net
[   22.098948][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   22.099112][   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
[   22.099530][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   22.099681][   T12] RAX: 00000000ffffffa6 RBX: ff1100000a14cc80 RCX: 1ff4000000018eed
[   22.099862][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a14cd3c
[   22.100036][   T12] RBP: ff1100000f134000 R08: 1fe22000014299a9 R09: ff11000001aed1d0
[   22.100214][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   22.100391][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   22.100570][   T12] FS:  0000000000000000(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   22.100786][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.100935][   T12] CR2: 00007fa0a8f22bc0 CR3: 000000001099d004 CR4: 0000000000771ef0
[   22.101112][   T12] PKRU: 55555554
[   22.101204][   T12] Call Trace:
[   22.101291][   T12]  <TASK>
[   22.101352][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   22.101501][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   22.101649][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   22.101772][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   22.101890][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   22.102014][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   22.102132][   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)
[   22.102252][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   22.102371][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   22.102487][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.102605][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   22.102726][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   22.102848][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   22.102971][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   22.103088][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.103208][   T12]  process_one_work (kernel/workqueue.c:3314)
[   22.103328][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   22.103445][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.103571][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   22.103696][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   22.103818][   T12]  kthread (kernel/kthread.c:436)
[   22.103908][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   22.104057][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   22.104174][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   22.104298][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   22.104446][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   22.104564][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   22.104686][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   22.114578][  T203] ------------[ cut here ]------------
| [   22.114722][  T203] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: scm_rights/203
| [   22.114988][  T203] Modules linked in:
| [   22.115388][  T203] Tainted: [W]=WARN
[   22.115486][  T203] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.115653][  T203] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   22.115829][  T203] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   22.116295][  T203] RSP: 0018:ffa00000008e7a80 EFLAGS: 00010286
[   22.116460][  T203] RAX: 00000000ffffffa6 RBX: ff1100000c282900 RCX: 1ff400000011cf16
[   22.116658][  T203] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c2829bc
[   22.116860][  T203] RBP: ff1100000f8c1000 R08: 1fe2200001850539 R09: ff11000010022e80
[   22.117056][  T203] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   22.117250][  T203] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f8c1000
[   22.117445][  T203] FS:  00007fa0a8e27740(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   22.117677][  T203] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.117844][  T203] CR2: 00000000004090e8 CR3: 000000001099d005 CR4: 0000000000771ef0
[   22.118038][  T203] PKRU: 55555554
[   22.118136][  T203] Call Trace:
[   22.118232][  T203]  <TASK>
[   22.118300][  T203]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   22.118430][  T203]  ? notifier_call_chain (kernel/notifier.c:85)
[   22.118561][  T203]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   22.118665][  T203]  register_netdevice (net/core/dev.c:11488)
[   22.118803][  T203]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   22.118965][  T203]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   22.119098][  T203]  register_netdev (net/core/dev.c:11552)
[   22.119227][  T203]  loopback_net_init (drivers/net/loopback.c:218)
[   22.119359][  T203]  ops_init (net/core/net_namespace.c:137)
[   22.119459][  T203]  setup_net (net/core/net_namespace.c:446)
[   22.119559][  T203]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   22.119693][  T203]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   22.119829][  T203]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   22.119961][  T203]  copy_net_ns (net/core/net_namespace.c:579)
[   22.120092][  T203]  create_new_namespaces (kernel/nsproxy.c:132)
[   22.120226][  T203]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   22.120357][  T203]  ksys_unshare (kernel/fork.c:3243)
[   22.120487][  T203]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.120621][  T203]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   22.120756][  T203]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.120887][  T203]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   22.121020][  T203]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.121151][  T203]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   22.121280][  T203]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   22.121411][  T203]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   22.121541][  T203]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   22.121673][  T203]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   22.121808][  T203]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.121969][  T203] RIP: 0033:0x7fa0a8f22bcb
[   22.122107][  T203] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   22.122571][  T203] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   22.122777][  T203] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   22.122970][  T203] RDX: 0000000000406460 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   22.123162][  T203] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   22.123358][  T203] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   22.123553][  T203] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   22.127752][  T203] ------------[ cut here ]------------
| [   22.127888][  T203] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: scm_rights/203
| [   22.128143][  T203] Modules linked in:
| [   22.128538][  T203] Tainted: [W]=WARN
[   22.128641][  T203] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.128808][  T203] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   22.128976][  T203] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   22.129437][  T203] RSP: 0018:ffa00000008e7918 EFLAGS: 00010286
[   22.129603][  T203] RAX: 00000000ffffffa6 RBX: ff1100000b570900 RCX: 1ff400000011cee9
[   22.129806][  T203] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b5709bc
[   22.130000][  T203] RBP: ff1100000e764000 R08: 1fe22000016ae139 R09: ff11000010022e80
[   22.130194][  T203] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   22.130388][  T203] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e764000
[   22.130582][  T203] FS:  00007fa0a8e27740(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   22.130819][  T203] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.130983][  T203] CR2: 00000000004090e8 CR3: 000000001099d005 CR4: 0000000000771ef0
[   22.131181][  T203] PKRU: 55555554
[   22.131279][  T203] Call Trace:
[   22.131376][  T203]  <TASK>
[   22.131445][  T203]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   22.131576][  T203]  ? notifier_call_chain (kernel/notifier.c:85)
[   22.131710][  T203]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   22.131813][  T203]  register_netdevice (net/core/dev.c:11488)
[   22.131947][  T203]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   22.132110][  T203]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   22.132241][  T203]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   22.132370][  T203]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   22.132499][  T203]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   22.132634][  T203]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   22.132770][  T203]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   22.132902][  T203]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   22.133034][  T203]  ops_init (net/core/net_namespace.c:137)
[   22.133134][  T203]  setup_net (net/core/net_namespace.c:446)
[   22.133232][  T203]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   22.133360][  T203]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   22.133490][  T203]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   22.133625][  T203]  copy_net_ns (net/core/net_namespace.c:579)
[   22.133762][  T203]  create_new_namespaces (kernel/nsproxy.c:132)
[   22.133897][  T203]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   22.134027][  T203]  ksys_unshare (kernel/fork.c:3243)
[   22.134157][  T203]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.134286][  T203]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   22.134414][  T203]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.134543][  T203]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   22.134679][  T203]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.134814][  T203]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   22.134945][  T203]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   22.135074][  T203]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   22.135203][  T203]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   22.135331][  T203]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   22.135462][  T203]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.135623][  T203] RIP: 0033:0x7fa0a8f22bcb
[   22.135764][  T203] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   22.136221][  T203] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   22.136417][  T203] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   22.136614][  T203] RDX: 0000000000406460 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   22.136810][  T203] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   22.137003][  T203] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   22.137196][  T203] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   22.141058][  T203] ------------[ cut here ]------------
| [   22.141192][  T203] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: scm_rights/203
| [   22.141449][  T203] Modules linked in:
| [   22.141855][  T203] Tainted: [W]=WARN
[   22.141956][  T203] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.142119][  T203] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   22.142288][  T203] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   22.142765][  T203] RSP: 0018:ffa00000008e78f8 EFLAGS: 00010286
[   22.142930][  T203] RAX: 00000000ffffffa6 RBX: ff1100000c1158c0 RCX: 1ff400000011cee5
[   22.143125][  T203] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c11597c
[   22.143318][  T203] RBP: ff11000010071000 R08: 1fe2200001822b31 R09: ff11000010022e80
[   22.143515][  T203] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   22.143712][  T203] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000010071000
[   22.143914][  T203] FS:  00007fa0a8e27740(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   22.144143][  T203] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.144307][  T203] CR2: 00000000004090e8 CR3: 000000001099d005 CR4: 0000000000771ef0
[   22.144507][  T203] PKRU: 55555554
[   22.144605][  T203] Call Trace:
[   22.144708][  T203]  <TASK>
[   22.144781][  T203]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   22.144913][  T203]  ? notifier_call_chain (kernel/notifier.c:85)
[   22.145047][  T203]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   22.145147][  T203]  register_netdevice (net/core/dev.c:11488)
[   22.145283][  T203]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   22.145447][  T203]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   22.145581][  T203]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   22.145717][  T203]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   22.145854][  T203]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   22.145989][  T203]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   22.146122][  T203]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   22.146255][  T203]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   22.146386][  T203]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   22.146520][  T203]  vti_init_net (net/ipv4/ip_vti.c:517)
[   22.146654][  T203]  ops_init (net/core/net_namespace.c:137)
[   22.146758][  T203]  setup_net (net/core/net_namespace.c:446)
[   22.146858][  T203]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   22.146990][  T203]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   22.147120][  T203]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   22.147253][  T203]  copy_net_ns (net/core/net_namespace.c:579)
[   22.147384][  T203]  create_new_namespaces (kernel/nsproxy.c:132)
[   22.147519][  T203]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   22.147655][  T203]  ksys_unshare (kernel/fork.c:3243)
[   22.147790][  T203]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.147921][  T203]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   22.148052][  T203]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.148194][  T203]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   22.148327][  T203]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.148460][  T203]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   22.148591][  T203]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   22.148726][  T203]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   22.148862][  T203]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   22.148993][  T203]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   22.149126][  T203]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.149288][  T203] RIP: 0033:0x7fa0a8f22bcb
[   22.149424][  T203] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   22.149898][  T203] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   22.150098][  T203] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   22.150293][  T203] RDX: 0000000000406460 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   22.150489][  T203] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   22.150688][  T203] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   22.150890][  T203] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   22.154924][  T203] ------------[ cut here ]------------
| [   22.155061][  T203] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: scm_rights/203
| [   22.155320][  T203] Modules linked in:
| [   22.155716][  T203] Tainted: [W]=WARN
[   22.155820][  T203] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.155982][  T203] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   22.156152][  T203] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   22.156614][  T203] RSP: 0018:ffa00000008e7a78 EFLAGS: 00010286
[   22.156782][  T203] RAX: 00000000ffffffa6 RBX: ff1100000c282580 RCX: 1ff400000011cf15
[   22.156978][  T203] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c28263c
[   22.157174][  T203] RBP: ff1100000f3a9000 R08: 1fe22000018504c9 R09: ff11000010022e80
[   22.157367][  T203] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   22.157561][  T203] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f3a9000
[   22.157766][  T203] FS:  00007fa0a8e27740(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   22.157993][  T203] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.158156][  T203] CR2: 00000000004090e8 CR3: 000000001099d005 CR4: 0000000000771ef0
[   22.158352][  T203] PKRU: 55555554
[   22.158450][  T203] Call Trace:
[   22.158547][  T203]  <TASK>
[   22.158618][  T203]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   22.158755][  T203]  ? notifier_call_chain (kernel/notifier.c:85)
[   22.158886][  T203]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   22.158985][  T203]  register_netdevice (net/core/dev.c:11488)
[   22.159116][  T203]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   22.159278][  T203]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.159409][  T203]  register_netdev (net/core/dev.c:11552)
[   22.159539][  T203]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   22.159708][  T203]  ops_init (net/core/net_namespace.c:137)
[   22.159813][  T203]  setup_net (net/core/net_namespace.c:446)
[   22.159912][  T203]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   22.160041][  T203]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   22.160169][  T203]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   22.160300][  T203]  copy_net_ns (net/core/net_namespace.c:579)
[   22.160432][  T203]  create_new_namespaces (kernel/nsproxy.c:132)
[   22.160567][  T203]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   22.160699][  T203]  ksys_unshare (kernel/fork.c:3243)
[   22.160921][  T203]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.161055][  T203]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   22.161182][  T203]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.161312][  T203]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   22.161527][  T203]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.161663][  T203]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   22.161795][  T203]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   22.161924][  T203]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   22.162137][  T203]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   22.162266][  T203]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   22.162395][  T203]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.162555][  T203] RIP: 0033:0x7fa0a8f22bcb
[   22.162788][  T203] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   22.163248][  T203] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   22.163530][  T203] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   22.163726][  T203] RDX: 0000000000406460 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   22.164013][  T203] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   22.164205][  T203] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   22.164396][  T203] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   22.168963][  T203] ------------[ cut here ]------------
| [   22.169100][  T203] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: scm_rights/203
| [   22.169356][  T203] Modules linked in:
| [   22.169860][  T203] Tainted: [W]=WARN
[   22.169958][  T203] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.170210][  T203] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   22.170378][  T203] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   22.170944][  T203] RSP: 0018:ffa00000008e7a68 EFLAGS: 00010286
[   22.171110][  T203] RAX: 00000000ffffffa6 RBX: ff1100000c6e7700 RCX: 1ff400000011cf13
[   22.171391][  T203] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c6e77bc
[   22.171586][  T203] RBP: ff1100000e8e4000 R08: 1fe22000018dcef9 R09: ff11000010022e80
[   22.171791][  T203] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   22.172076][  T203] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e8e4000
[   22.172274][  T203] FS:  00007fa0a8e27740(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   22.172590][  T203] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.172762][  T203] CR2: 00000000004090e8 CR3: 000000001099d005 CR4: 0000000000771ef0
[   22.172960][  T203] PKRU: 55555554
[   22.173058][  T203] Call Trace:
[   22.173240][  T203]  <TASK>
[   22.173307][  T203]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   22.173440][  T203]  ? notifier_call_chain (kernel/notifier.c:85)
[   22.173571][  T203]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   22.173675][  T203]  register_netdevice (net/core/dev.c:11488)
[   22.173896][  T203]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   22.174062][  T203]  register_netdev (net/core/dev.c:11552)
[   22.174192][  T203]  sit_init_net (net/ipv6/sit.c:1860)
[   22.174324][  T203]  ops_init (net/core/net_namespace.c:137)
[   22.174509][  T203]  setup_net (net/core/net_namespace.c:446)
[   22.174610][  T203]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   22.174744][  T203]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   22.174876][  T203]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   22.175092][  T203]  copy_net_ns (net/core/net_namespace.c:579)
[   22.175223][  T203]  create_new_namespaces (kernel/nsproxy.c:132)
[   22.175357][  T203]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   22.175489][  T203]  ksys_unshare (kernel/fork.c:3243)
[   22.175707][  T203]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.175842][  T203]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   22.175972][  T203]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.176102][  T203]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   22.176319][  T203]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.176450][  T203]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   22.176578][  T203]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   22.176710][  T203]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   22.176925][  T203]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   22.177054][  T203]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   22.177185][  T203]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.177346][  T203] RIP: 0033:0x7fa0a8f22bcb
[   22.177573][  T203] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   22.178132][  T203] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   22.178328][  T203] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   22.178520][  T203] RDX: 0000000000406460 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   22.178807][  T203] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   22.179000][  T203] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   22.179193][  T203] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   22.184292][  T203] ------------[ cut here ]------------
| [   22.184429][  T203] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: scm_rights/203
| [   22.184692][  T203] Modules linked in:
| [   22.185176][  T203] Tainted: [W]=WARN
[   22.185273][  T203] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.185526][  T203] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   22.185701][  T203] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   22.186261][  T203] RSP: 0018:ffa00000008e7a78 EFLAGS: 00010286
[   22.186425][  T203] RAX: 00000000ffffffa6 RBX: ff11000004bd7380 RCX: 1ff400000011cf15
[   22.186626][  T203] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000004bd743c
[   22.186920][  T203] RBP: ff1100000f989000 R08: 1fe220000097ae89 R09: ff11000010022e80
[   22.187115][  T203] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   22.187396][  T203] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f989000
[   22.187596][  T203] FS:  00007fa0a8e27740(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   22.187832][  T203] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.188083][  T203] CR2: 00000000004090e8 CR3: 000000001099d005 CR4: 0000000000771ef0
[   22.188279][  T203] PKRU: 55555554
[   22.188376][  T203] Call Trace:
[   22.188473][  T203]  <TASK>
[   22.188632][  T203]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   22.188767][  T203]  ? notifier_call_chain (kernel/notifier.c:85)
[   22.188898][  T203]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   22.188998][  T203]  register_netdevice (net/core/dev.c:11488)
[   22.189131][  T203]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   22.189379][  T203]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.189514][  T203]  register_netdev (net/core/dev.c:11552)
[   22.189651][  T203]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   22.189788][  T203]  ops_init (net/core/net_namespace.c:137)
[   22.189889][  T203]  setup_net (net/core/net_namespace.c:446)
[   22.189989][  T203]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   22.190121][  T203]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   22.190250][  T203]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   22.190468][  T203]  copy_net_ns (net/core/net_namespace.c:579)
[   22.190603][  T203]  create_new_namespaces (kernel/nsproxy.c:132)
[   22.190746][  T203]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   22.190879][  T203]  ksys_unshare (kernel/fork.c:3243)
[   22.191095][  T203]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.191226][  T203]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   22.191357][  T203]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.191488][  T203]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   22.191714][  T203]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.191851][  T203]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   22.191982][  T203]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   22.192115][  T203]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   22.192333][  T203]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   22.192464][  T203]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   22.192596][  T203]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.192768][  T203] RIP: 0033:0x7fa0a8f22bcb
[   22.192907][  T203] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   22.193461][  T203] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   22.193663][  T203] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   22.193863][  T203] RDX: 0000000000406460 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   22.194147][  T203] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   22.194343][  T203] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   22.194537][  T203] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   22.206976][   T12] ------------[ cut here ]------------
| [   22.207114][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   22.207348][   T12] Modules linked in:
| [   22.207718][   T12] Tainted: [W]=WARN
[   22.207820][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.207973][   T12] Workqueue: netns cleanup_net
[   22.208096][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   22.208250][   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
[   22.208690][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   22.208845][   T12] RAX: 00000000ffffffa6 RBX: ff1100000ce1ce40 RCX: 1ff4000000018ed5
[   22.209024][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ce1cefc
[   22.209201][   T12] RBP: ff11000005291000 R08: 1fe22000019c39e1 R09: ff11000001aed1d0
[   22.209377][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   22.209556][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   22.209747][   T12] FS:  0000000000000000(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   22.209955][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.210103][   T12] CR2: 00007fa0a8f22bc0 CR3: 000000001099d004 CR4: 0000000000771ef0
[   22.210281][   T12] PKRU: 55555554
[   22.210370][   T12] Call Trace:
[   22.210459][   T12]  <TASK>
[   22.210522][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   22.210677][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   22.210833][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   22.210956][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   22.211082][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   22.211201][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   22.211319][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   22.211445][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   22.211566][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   22.211688][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.211816][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   22.211936][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   22.212054][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   22.212174][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   22.212292][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.212412][   T12]  process_one_work (kernel/workqueue.c:3314)
[   22.212536][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   22.212660][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.212788][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   22.212913][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   22.213033][   T12]  kthread (kernel/kthread.c:436)
[   22.213129][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   22.213280][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   22.213399][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   22.213519][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   22.213672][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   22.213809][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   22.213928][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   23.208770][   T12] ------------[ cut here ]------------
| [   23.208960][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   23.209204][   T12] Modules linked in:
| [   23.209574][   T12] Tainted: [W]=WARN
[   23.209671][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.209827][   T12] Workqueue: netns cleanup_net
[   23.209958][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   23.210112][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   23.210537][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   23.210692][   T12] RAX: 00000000ffffffa6 RBX: ff1100000ce1dc40 RCX: 1ff4000000018eed
[   23.210876][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ce1dcfc
[   23.211052][   T12] RBP: ff1100000f989000 R08: 1fe22000019c3ba1 R09: ff11000001aed1d0
[   23.211228][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   23.211406][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   23.211588][   T12] FS:  0000000000000000(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   23.211805][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.211955][   T12] CR2: 00007fa0a8f22bc0 CR3: 0000000044d4d002 CR4: 0000000000771ef0
[   23.212140][   T12] PKRU: 55555554
[   23.212229][   T12] Call Trace:
[   23.212318][   T12]  <TASK>
[   23.212381][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   23.212536][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   23.212687][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   23.212816][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   23.212939][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   23.213061][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   23.213184][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   23.213312][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   23.213436][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   23.213554][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.213698][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   23.213845][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   23.213969][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   23.214101][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   23.214218][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.214338][   T12]  process_one_work (kernel/workqueue.c:3314)
[   23.214463][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   23.214590][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.214717][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   23.214850][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   23.214977][   T12]  kthread (kernel/kthread.c:436)
[   23.215072][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   23.215219][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   23.215337][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   23.215461][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   23.215608][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   23.215747][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   23.215866][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   23.218199][   T12] ------------[ cut here ]------------
| [   23.218319][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   23.218567][   T12] Modules linked in:
| [   23.218956][   T12] Tainted: [W]=WARN
[   23.219045][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.219206][   T12] Workqueue: netns cleanup_net
[   23.219335][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   23.219500][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   23.219981][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   23.220142][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c114740 RCX: 1ff4000000018eed
[   23.220326][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c1147fc
[   23.220529][   T12] RBP: ff1100000e8e4000 R08: 1fe2200001822901 R09: ff11000001aed1d0
[   23.220719][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   23.220899][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   23.221096][   T12] FS:  0000000000000000(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   23.221309][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.221461][   T12] CR2: 00007fa0a8f22bc0 CR3: 0000000044d4d002 CR4: 0000000000771ef0
[   23.221656][   T12] PKRU: 55555554
[   23.221747][   T12] Call Trace:
[   23.221835][   T12]  <TASK>
[   23.221902][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   23.222063][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   23.222211][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   23.222332][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   23.222455][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   23.222572][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   23.222698][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   23.222828][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   23.222947][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   23.223065][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.223199][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   23.223321][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   23.223445][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   23.223595][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   23.223721][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.223986][   T12]  process_one_work (kernel/workqueue.c:3314)
[   23.224129][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   23.224246][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.224386][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   23.224508][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   23.224630][   T12]  kthread (kernel/kthread.c:436)
[   23.224723][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   23.224876][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   23.224994][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   23.225114][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   23.225259][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   23.225378][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   23.225496][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   23.227689][   T12] ------------[ cut here ]------------
| [   23.227815][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   23.228041][   T12] Modules linked in:
| [   23.228395][   T12] Tainted: [W]=WARN
[   23.228483][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.228638][   T12] Workqueue: netns cleanup_net
[   23.229205][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   23.229357][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   23.229828][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   23.229976][   T12] RAX: 00000000ffffffa6 RBX: ff110000097f2c80 RCX: 1ff4000000018eed
[   23.230148][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000097f2d3c
[   23.230322][   T12] RBP: ff1100000f3a9000 R08: 1fe22000012fe5a9 R09: ff11000001aed1d0
[   23.230498][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   23.230677][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   23.230907][   T12] FS:  0000000000000000(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   23.231111][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.231259][   T12] CR2: 00007fa0a8f22bc0 CR3: 0000000044d4d002 CR4: 0000000000771ef0
[   23.231437][   T12] PKRU: 55555554
[   23.231523][   T12] Call Trace:
[   23.231614][   T12]  <TASK>
[   23.231675][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   23.231872][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   23.232015][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   23.232140][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   23.232258][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   23.232375][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   23.232491][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   23.232609][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   23.232780][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   23.232895][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.233014][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   23.233133][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   23.233247][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   23.233365][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   23.233482][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.233600][   T12]  process_one_work (kernel/workqueue.c:3314)
[   23.233724][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   23.233888][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.234011][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   23.234137][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   23.234258][   T12]  kthread (kernel/kthread.c:436)
[   23.234346][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   23.234493][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   23.234610][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   23.234779][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   23.234930][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   23.235047][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   23.235166][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   23.237218][   T12] ------------[ cut here ]------------
| [   23.237357][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   23.237595][   T12] Modules linked in:
| [   23.238081][   T12] Tainted: [W]=WARN
[   23.238170][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.238318][   T12] Workqueue: netns cleanup_net
[   23.238440][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   23.238591][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   23.239018][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   23.239166][   T12] RAX: 00000000ffffffa6 RBX: ff1100000946b1c0 RCX: 1ff4000000018eed
[   23.239338][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000946b27c
[   23.239513][   T12] RBP: ff11000010071000 R08: 1fe220000128d651 R09: ff11000001aed1d0
[   23.239696][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   23.239879][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   23.240056][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   23.240259][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.240410][   T12] CR2: 00007fa0a8f22bc0 CR3: 000000000bdc3001 CR4: 0000000000771ef0
[   23.240592][   T12] PKRU: 55555554
[   23.240684][   T12] Call Trace:
[   23.240775][   T12]  <TASK>
[   23.240837][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   23.240987][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   23.241138][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   23.241257][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   23.241375][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   23.241492][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   23.241616][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   23.241742][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   23.241861][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   23.241979][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.242100][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   23.242218][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   23.242335][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   23.242454][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   23.242571][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.242697][   T12]  process_one_work (kernel/workqueue.c:3314)
[   23.242825][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   23.242942][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.243064][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   23.243186][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   23.243304][   T12]  kthread (kernel/kthread.c:436)
[   23.243394][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   23.243540][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   23.243663][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   23.243787][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   23.243936][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   23.244053][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   23.244172][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   23.253598][   T12] ------------[ cut here ]------------
| [   23.253727][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   23.254057][   T12] Modules linked in:
| [   23.254411][   T12] Tainted: [W]=WARN
[   23.254499][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.254651][   T12] Workqueue: netns cleanup_net
[   23.254870][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   23.255022][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   23.255439][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   23.255585][   T12] RAX: 00000000ffffffa6 RBX: ff1100000d9b43c0 RCX: 1ff4000000018eed
[   23.255858][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d9b447c
[   23.256031][   T12] RBP: ff1100000e764000 R08: 1fe2200001b36891 R09: ff11000001aed1d0
[   23.256298][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   23.256474][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   23.256652][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   23.256955][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.257105][   T12] CR2: 00007fa0a8f22bc0 CR3: 000000000bdc3001 CR4: 0000000000771ef0
[   23.257283][   T12] PKRU: 55555554
[   23.257370][   T12] Call Trace:
[   23.257458][   T12]  <TASK>
[   23.257519][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   23.257677][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   23.257885][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   23.258001][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   23.258120][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   23.258238][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   23.258356][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   23.258474][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   23.258595][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   23.258714][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.258887][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   23.259007][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   23.259125][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   23.259247][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   23.259365][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.259485][   T12]  process_one_work (kernel/workqueue.c:3314)
[   23.259607][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   23.259727][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.259897][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   23.260019][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   23.260141][   T12]  kthread (kernel/kthread.c:436)
[   23.260231][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   23.260378][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   23.260498][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   23.260620][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   23.260821][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   23.260939][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   23.261057][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   23.274854][  T205] ------------[ cut here ]------------
| [   23.274998][  T205] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: scm_rights/205
| [   23.275254][  T205] Modules linked in:
| [   23.275658][  T205] Tainted: [W]=WARN
[   23.275764][  T205] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.275933][  T205] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   23.276104][  T205] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   23.276577][  T205] RSP: 0018:ffa00000008f7a80 EFLAGS: 00010286
[   23.276753][  T205] RAX: 00000000ffffffa6 RBX: ff110000096c3700 RCX: 1ff400000011ef16
[   23.276952][  T205] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000096c37bc
[   23.277153][  T205] RBP: ff1100000fc49000 R08: 1fe22000012d86f9 R09: ff11000009b4d180
[   23.277349][  T205] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   23.277548][  T205] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fc49000
[   23.277754][  T205] FS:  00007fa0a8e27740(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   23.277983][  T205] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.278147][  T205] CR2: 00007fa0a8f22bc0 CR3: 000000000bdc3001 CR4: 0000000000771ef0
[   23.278345][  T205] PKRU: 55555554
[   23.278443][  T205] Call Trace:
[   23.278542][  T205]  <TASK>
[   23.278614][  T205]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   23.278750][  T205]  ? notifier_call_chain (kernel/notifier.c:85)
[   23.278887][  T205]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   23.278987][  T205]  register_netdevice (net/core/dev.c:11488)
[   23.279121][  T205]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   23.279284][  T205]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   23.279418][  T205]  register_netdev (net/core/dev.c:11552)
[   23.279552][  T205]  loopback_net_init (drivers/net/loopback.c:218)
[   23.279687][  T205]  ops_init (net/core/net_namespace.c:137)
[   23.279795][  T205]  setup_net (net/core/net_namespace.c:446)
[   23.279897][  T205]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   23.280028][  T205]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   23.280158][  T205]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   23.280292][  T205]  copy_net_ns (net/core/net_namespace.c:579)
[   23.280423][  T205]  create_new_namespaces (kernel/nsproxy.c:132)
[   23.280557][  T205]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   23.280694][  T205]  ksys_unshare (kernel/fork.c:3243)
[   23.280832][  T205]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.280965][  T205]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   23.281095][  T205]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.281228][  T205]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   23.281363][  T205]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.281496][  T205]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   23.281629][  T205]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   23.281768][  T205]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   23.281899][  T205]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   23.282031][  T205]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   23.282161][  T205]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   23.282324][  T205] RIP: 0033:0x7fa0a8f22bcb
[   23.282463][  T205] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   23.282941][  T205] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   23.283138][  T205] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   23.283332][  T205] RDX: 0000000000406460 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   23.283528][  T205] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   23.283729][  T205] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   23.283930][  T205] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   23.288160][  T205] ------------[ cut here ]------------
| [   23.288295][  T205] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: scm_rights/205
| [   23.288551][  T205] Modules linked in:
| [   23.288954][  T205] Tainted: [W]=WARN
[   23.289054][  T205] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.289216][  T205] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   23.289384][  T205] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   23.289859][  T205] RSP: 0018:ffa00000008f7918 EFLAGS: 00010286
[   23.290022][  T205] RAX: 00000000ffffffa6 RBX: ff11000002856040 RCX: 1ff400000011eee9
[   23.290218][  T205] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000028560fc
[   23.290413][  T205] RBP: ff1100000fd61000 R08: 1fe220000050ac21 R09: ff11000009b4d180
[   23.290607][  T205] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   23.290810][  T205] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fd61000
[   23.291007][  T205] FS:  00007fa0a8e27740(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   23.291234][  T205] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.291397][  T205] CR2: 00007fa0a8f22bc0 CR3: 000000000bdc3001 CR4: 0000000000771ef0
[   23.291594][  T205] PKRU: 55555554
[   23.291695][  T205] Call Trace:
[   23.291797][  T205]  <TASK>
[   23.291865][  T205]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   23.291994][  T205]  ? notifier_call_chain (kernel/notifier.c:85)
[   23.292126][  T205]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   23.292226][  T205]  register_netdevice (net/core/dev.c:11488)
[   23.292358][  T205]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   23.292521][  T205]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   23.292660][  T205]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   23.292797][  T205]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   23.292927][  T205]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   23.293058][  T205]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   23.293189][  T205]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   23.293321][  T205]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   23.293455][  T205]  ops_init (net/core/net_namespace.c:137)
[   23.293557][  T205]  setup_net (net/core/net_namespace.c:446)
[   23.293659][  T205]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   23.293794][  T205]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   23.293924][  T205]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   23.294055][  T205]  copy_net_ns (net/core/net_namespace.c:579)
[   23.294187][  T205]  create_new_namespaces (kernel/nsproxy.c:132)
[   23.294320][  T205]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   23.294452][  T205]  ksys_unshare (kernel/fork.c:3243)
[   23.294583][  T205]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.294715][  T205]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   23.294852][  T205]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.294982][  T205]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   23.295114][  T205]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.295245][  T205]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   23.295377][  T205]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   23.295507][  T205]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   23.295641][  T205]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   23.295778][  T205]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   23.295908][  T205]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   23.296070][  T205] RIP: 0033:0x7fa0a8f22bcb
[   23.296205][  T205] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   23.296682][  T205] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   23.296885][  T205] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   23.297079][  T205] RDX: 0000000000406460 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   23.297276][  T205] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   23.297470][  T205] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   23.297669][  T205] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   23.301464][  T205] ------------[ cut here ]------------
| [   23.301595][  T205] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: scm_rights/205
| [   23.301864][  T205] Modules linked in:
| [   23.302263][  T205] Tainted: [W]=WARN
[   23.302362][  T205] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.302526][  T205] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   23.302700][  T205] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   23.303174][  T205] RSP: 0018:ffa00000008f78f8 EFLAGS: 00010286
[   23.303340][  T205] RAX: 00000000ffffffa6 RBX: ff11000002856900 RCX: 1ff400000011eee5
[   23.303536][  T205] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000028569bc
[   23.303740][  T205] RBP: ff11000010064000 R08: 1fe220000050ad39 R09: ff11000009b4d180
[   23.303938][  T205] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   23.304134][  T205] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000010064000
[   23.304331][  T205] FS:  00007fa0a8e27740(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   23.304562][  T205] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.304739][  T205] CR2: 00007fa0a8f22bc0 CR3: 000000000bdc3001 CR4: 0000000000771ef0
[   23.304942][  T205] PKRU: 55555554
[   23.305040][  T205] Call Trace:
[   23.305138][  T205]  <TASK>
[   23.305206][  T205]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   23.305340][  T205]  ? notifier_call_chain (kernel/notifier.c:85)
[   23.305472][  T205]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   23.305573][  T205]  register_netdevice (net/core/dev.c:11488)
[   23.305713][  T205]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   23.305882][  T205]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   23.306016][  T205]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   23.306149][  T205]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   23.306281][  T205]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   23.306416][  T205]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   23.306550][  T205]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   23.306686][  T205]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   23.306825][  T205]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   23.306959][  T205]  vti_init_net (net/ipv4/ip_vti.c:517)
[   23.307090][  T205]  ops_init (net/core/net_namespace.c:137)
[   23.307193][  T205]  setup_net (net/core/net_namespace.c:446)
[   23.307293][  T205]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   23.307424][  T205]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   23.307556][  T205]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   23.307698][  T205]  copy_net_ns (net/core/net_namespace.c:579)
[   23.307838][  T205]  create_new_namespaces (kernel/nsproxy.c:132)
[   23.307975][  T205]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   23.308109][  T205]  ksys_unshare (kernel/fork.c:3243)
[   23.308242][  T205]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.308376][  T205]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   23.308509][  T205]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.308648][  T205]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   23.308786][  T205]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.308920][  T205]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   23.309052][  T205]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   23.309182][  T205]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   23.309313][  T205]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   23.309445][  T205]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   23.309577][  T205]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   23.309750][  T205] RIP: 0033:0x7fa0a8f22bcb
[   23.309890][  T205] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   23.310358][  T205] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   23.310558][  T205] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   23.310767][  T205] RDX: 0000000000406460 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   23.310966][  T205] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   23.311165][  T205] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   23.311364][  T205] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   23.315800][  T205] ------------[ cut here ]------------
| [   23.315936][  T205] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: scm_rights/205
| [   23.316197][  T205] Modules linked in:
| [   23.316593][  T205] Tainted: [W]=WARN
[   23.316696][  T205] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.316867][  T205] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   23.317039][  T205] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   23.317507][  T205] RSP: 0018:ffa00000008f7a78 EFLAGS: 00010286
[   23.317677][  T205] RAX: 00000000ffffffa6 RBX: ff110000054ff380 RCX: 1ff400000011ef15
[   23.317880][  T205] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000054ff43c
[   23.318077][  T205] RBP: ff1100000ff6c000 R08: 1fe2200000a9fe89 R09: ff11000009b4d180
[   23.318274][  T205] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   23.318471][  T205] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000ff6c000
[   23.318672][  T205] FS:  00007fa0a8e27740(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   23.318911][  T205] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.319076][  T205] CR2: 00007fa0a8f22bc0 CR3: 000000000bdc3001 CR4: 0000000000771ef0
[   23.319276][  T205] PKRU: 55555554
[   23.319376][  T205] Call Trace:
[   23.319476][  T205]  <TASK>
[   23.319544][  T205]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   23.319681][  T205]  ? notifier_call_chain (kernel/notifier.c:85)
[   23.319816][  T205]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   23.319916][  T205]  register_netdevice (net/core/dev.c:11488)
[   23.320048][  T205]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   23.320209][  T205]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.320341][  T205]  register_netdev (net/core/dev.c:11552)
[   23.320473][  T205]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   23.320608][  T205]  ops_init (net/core/net_namespace.c:137)
[   23.320712][  T205]  setup_net (net/core/net_namespace.c:446)
[   23.320817][  T205]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   23.320947][  T205]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   23.321077][  T205]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   23.321210][  T205]  copy_net_ns (net/core/net_namespace.c:579)
[   23.321342][  T205]  create_new_namespaces (kernel/nsproxy.c:132)
[   23.321477][  T205]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   23.321610][  T205]  ksys_unshare (kernel/fork.c:3243)
[   23.321747][  T205]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.321878][  T205]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   23.322008][  T205]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.322139][  T205]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   23.322271][  T205]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.322406][  T205]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   23.322536][  T205]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   23.322668][  T205]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   23.322802][  T205]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   23.322931][  T205]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   23.323062][  T205]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   23.323224][  T205] RIP: 0033:0x7fa0a8f22bcb
[   23.323360][  T205] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   23.323831][  T205] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   23.324027][  T205] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   23.324219][  T205] RDX: 0000000000406460 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   23.324416][  T205] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   23.324610][  T205] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   23.324811][  T205] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   23.326688][   T12] ------------[ cut here ]------------
| [   23.326819][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   23.327056][   T12] Modules linked in:
| [   23.327427][   T12] Tainted: [W]=WARN
[   23.327517][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.327674][   T12] Workqueue: netns cleanup_net
[   23.327807][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   23.327962][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   23.328386][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   23.328543][   T12] RAX: 00000000ffffffa6 RBX: ff1100000a88c580 RCX: 1ff4000000018ed5
[   23.328726][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a88c63c
[   23.328915][   T12] RBP: ff1100000f8c1000 R08: 1fe22000015118c9 R09: ff11000001aed1d0
[   23.329095][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   23.329271][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   23.329450][   T12] FS:  0000000000000000(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   23.329664][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.329823][   T12] CR2: 00007fa0a8f22bc0 CR3: 0000000044d4d002 CR4: 0000000000771ef0
[   23.330005][   T12] PKRU: 55555554
[   23.330094][   T12] Call Trace:
[   23.330183][   T12]  <TASK>
[   23.330246][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   23.330396][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   23.330547][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   23.330675][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   23.330803][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   23.330924][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   23.331041][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   23.331163][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   23.331284][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   23.331401][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.331530][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   23.331654][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   23.331774][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   23.331893][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   23.332010][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.332131][   T12]  process_one_work (kernel/workqueue.c:3314)
[   23.332252][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   23.332373][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.332497][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   23.332623][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   23.332748][   T12]  kthread (kernel/kthread.c:436)
[   23.332837][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   23.332988][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   23.333108][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   23.333228][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   23.333379][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   23.333499][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   23.333621][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   23.340544][  T205] ------------[ cut here ]------------
| [   23.340689][  T205] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: scm_rights/205
| [   23.340956][  T205] Modules linked in:
| [   23.341354][  T205] Tainted: [W]=WARN
[   23.341456][  T205] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.341624][  T205] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   23.341800][  T205] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   23.342266][  T205] RSP: 0018:ffa00000008f7a68 EFLAGS: 00010286
[   23.342432][  T205] RAX: 00000000ffffffa6 RBX: ff1100000a88c740 RCX: 1ff400000011ef13
[   23.342632][  T205] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a88c7fc
[   23.342833][  T205] RBP: ff1100000e6bc000 R08: 1fe2200001511901 R09: ff11000009b4d180
[   23.343027][  T205] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   23.343224][  T205] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e6bc000
[   23.343422][  T205] FS:  00007fa0a8e27740(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   23.343652][  T205] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.343821][  T205] CR2: 00007fa0a8f22bc0 CR3: 000000000bdc3001 CR4: 0000000000771ef0
[   23.344018][  T205] PKRU: 55555554
[   23.344115][  T205] Call Trace:
[   23.344213][  T205]  <TASK>
[   23.344280][  T205]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   23.344411][  T205]  ? notifier_call_chain (kernel/notifier.c:85)
[   23.344541][  T205]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   23.344647][  T205]  register_netdevice (net/core/dev.c:11488)
[   23.344837][  T205]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   23.345005][  T205]  register_netdev (net/core/dev.c:11552)
[   23.345135][  T205]  sit_init_net (net/ipv6/sit.c:1860)
[   23.345268][  T205]  ops_init (net/core/net_namespace.c:137)
[   23.345368][  T205]  setup_net (net/core/net_namespace.c:446)
[   23.345468][  T205]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   23.345600][  T205]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   23.345750][  T205]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   23.345883][  T205]  copy_net_ns (net/core/net_namespace.c:579)
[   23.346016][  T205]  create_new_namespaces (kernel/nsproxy.c:132)
[   23.346149][  T205]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   23.346280][  T205]  ksys_unshare (kernel/fork.c:3243)
[   23.346411][  T205]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.346540][  T205]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   23.346673][  T205]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.346810][  T205]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   23.346943][  T205]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.347075][  T205]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   23.347205][  T205]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   23.347335][  T205]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   23.347467][  T205]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   23.347598][  T205]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   23.347738][  T205]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   23.347902][  T205] RIP: 0033:0x7fa0a8f22bcb
[   23.348041][  T205] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   23.348506][  T205] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   23.348705][  T205] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   23.348907][  T205] RDX: 0000000000406460 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   23.349103][  T205] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   23.349301][  T205] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   23.349498][  T205] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   23.354160][  T205] ------------[ cut here ]------------
| [   23.354295][  T205] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: scm_rights/205
| [   23.354555][  T205] Modules linked in:
| [   23.355487][  T205] Tainted: [W]=WARN
[   23.355586][  T205] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.355813][  T205] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   23.355982][  T205] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   23.356448][  T205] RSP: 0018:ffa00000008f7a78 EFLAGS: 00010286
[   23.356617][  T205] RAX: 00000000ffffffa6 RBX: ff1100000285ec80 RCX: 1ff400000011ef15
[   23.356874][  T205] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000285ed3c
[   23.357071][  T205] RBP: ff11000001f61000 R08: 1fe220000050bda9 R09: ff11000009b4d180
[   23.357266][  T205] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   23.357463][  T205] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000001f61000
[   23.357718][  T205] FS:  00007fa0a8e27740(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   23.358007][  T205] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.358173][  T205] CR2: 00007fa0a8f22bc0 CR3: 000000000bdc3001 CR4: 0000000000771ef0
[   23.358369][  T205] PKRU: 55555554
[   23.358468][  T205] Call Trace:
[   23.358567][  T205]  <TASK>
[   23.358639][  T205]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   23.358828][  T205]  ? notifier_call_chain (kernel/notifier.c:85)
[   23.358961][  T205]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   23.359060][  T205]  register_netdevice (net/core/dev.c:11488)
[   23.359193][  T205]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   23.359355][  T205]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.359488][  T205]  register_netdev (net/core/dev.c:11552)
[   23.359623][  T205]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   23.359815][  T205]  ops_init (net/core/net_namespace.c:137)
[   23.359918][  T205]  setup_net (net/core/net_namespace.c:446)
[   23.360018][  T205]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   23.360148][  T205]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   23.360278][  T205]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   23.360411][  T205]  copy_net_ns (net/core/net_namespace.c:579)
[   23.360544][  T205]  create_new_namespaces (kernel/nsproxy.c:132)
[   23.360682][  T205]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   23.360873][  T205]  ksys_unshare (kernel/fork.c:3243)
[   23.361003][  T205]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.361134][  T205]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   23.361264][  T205]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.361396][  T205]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   23.361528][  T205]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.361664][  T205]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   23.361853][  T205]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   23.361983][  T205]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   23.362113][  T205]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   23.362242][  T205]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   23.362373][  T205]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   23.362537][  T205] RIP: 0033:0x7fa0a8f22bcb
[   23.362678][  T205] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   23.363203][  T205] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   23.363399][  T205] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   23.363591][  T205] RDX: 0000000000406460 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   23.363850][  T205] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   23.364046][  T205] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   23.364240][  T205] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   24.378203][   T12] ------------[ cut here ]------------
| [   24.378375][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   24.378623][   T12] Modules linked in:
| [   24.379014][   T12] Tainted: [W]=WARN
[   24.379107][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.379256][   T12] Workqueue: netns cleanup_net
[   24.379381][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.379542][   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
[   24.379983][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   24.380134][   T12] RAX: 00000000ffffffa6 RBX: ff11000002730e40 RCX: 1ff4000000018eed
[   24.380311][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000002730efc
[   24.380493][   T12] RBP: ff11000001f61000 R08: 1fe22000004e61e1 R09: ff11000001aed1d0
[   24.380672][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   24.380855][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   24.381036][   T12] FS:  0000000000000000(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   24.381242][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.381391][   T12] CR2: 00007fa0a8f22bc0 CR3: 0000000044d4d002 CR4: 0000000000771ef0
[   24.381567][   T12] PKRU: 55555554
[   24.381659][   T12] Call Trace:
[   24.381755][   T12]  <TASK>
[   24.381819][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   24.381975][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   24.382122][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   24.382241][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   24.382359][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   24.382477][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   24.382596][   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)
[   24.382719][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   24.382844][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   24.382962][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.383088][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   24.383208][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   24.383325][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   24.383444][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   24.383574][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.383701][   T12]  process_one_work (kernel/workqueue.c:3314)
[   24.383829][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   24.383946][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.384068][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   24.384190][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   24.384308][   T12]  kthread (kernel/kthread.c:436)
[   24.384398][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   24.384547][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.384672][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   24.384799][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   24.384944][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   24.385062][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.385179][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   24.387429][   T12] ------------[ cut here ]------------
| [   24.387550][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   24.387811][   T12] Modules linked in:
| [   24.388177][   T12] Tainted: [W]=WARN
[   24.388266][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.388417][   T12] Workqueue: netns cleanup_net
[   24.388541][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.388697][   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
[   24.389147][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   24.389316][   T12] RAX: 00000000ffffffa6 RBX: ff11000002731540 RCX: 1ff4000000018eed
[   24.389496][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000027315fc
[   24.389687][   T12] RBP: ff1100000e6bc000 R08: 1fe22000004e62c1 R09: ff11000001aed1d0
[   24.389873][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   24.390046][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   24.390236][   T12] FS:  0000000000000000(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   24.390442][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.390594][   T12] CR2: 00007fa0a8f22bc0 CR3: 0000000044d4d002 CR4: 0000000000771ef0
[   24.390790][   T12] PKRU: 55555554
[   24.390884][   T12] Call Trace:
[   24.390978][   T12]  <TASK>
[   24.391046][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   24.391194][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   24.391343][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   24.391471][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   24.391608][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   24.391744][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   24.391870][   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)
[   24.391993][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   24.392117][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   24.392234][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.392365][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   24.392492][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   24.392613][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   24.392742][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   24.392858][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.392979][   T12]  process_one_work (kernel/workqueue.c:3314)
[   24.393109][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   24.393236][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.393362][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   24.393483][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   24.393603][   T12]  kthread (kernel/kthread.c:436)
[   24.393700][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   24.393861][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.393982][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   24.394107][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   24.394256][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   24.394382][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.394516][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   24.396786][   T12] ------------[ cut here ]------------
| [   24.396911][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   24.397160][   T12] Modules linked in:
| [   24.397535][   T12] Tainted: [W]=WARN
[   24.397629][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.397970][   T12] Workqueue: netns cleanup_net
[   24.398100][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.398262][   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
[   24.398726][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   24.398946][   T12] RAX: 00000000ffffffa6 RBX: ff11000002731c40 RCX: 1ff4000000018eed
[   24.399124][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000002731cfc
[   24.399308][   T12] RBP: ff1100000ff6c000 R08: 1fe22000004e63a1 R09: ff11000001aed1d0
[   24.399503][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   24.399689][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   24.399909][   T12] FS:  0000000000000000(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   24.400132][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.400299][   T12] CR2: 00007fa0a8f22bc0 CR3: 0000000044d4d002 CR4: 0000000000771ef0
[   24.400481][   T12] PKRU: 55555554
[   24.400568][   T12] Call Trace:
[   24.400660][   T12]  <TASK>
[   24.400721][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   24.400924][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   24.401071][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   24.401190][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   24.401314][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   24.401432][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   24.401555][   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)
[   24.401680][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   24.401850][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   24.401966][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.402085][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   24.402202][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   24.402318][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   24.402436][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   24.402552][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.402675][   T12]  process_one_work (kernel/workqueue.c:3314)
[   24.402849][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   24.402970][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.403091][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   24.403215][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   24.403336][   T12]  kthread (kernel/kthread.c:436)
[   24.403424][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   24.403569][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.403694][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   24.403861][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   24.404056][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   24.404176][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.404292][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   24.406417][   T12] ------------[ cut here ]------------
| [   24.406549][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   24.406801][   T12] Modules linked in:
| [   24.407158][   T12] Tainted: [W]=WARN
[   24.407247][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.407396][   T12] Workqueue: netns cleanup_net
[   24.407521][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.407681][   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
[   24.408102][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   24.408251][   T12] RAX: 00000000ffffffa6 RBX: ff11000002859a80 RCX: 1ff4000000018eed
[   24.408425][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000002859b3c
[   24.408598][   T12] RBP: ff11000010064000 R08: 1fe220000050b369 R09: ff11000001aed1d0
[   24.408788][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   24.408965][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   24.409139][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   24.409345][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.409493][   T12] CR2: 00007fa0a901cb20 CR3: 00000000108d9003 CR4: 0000000000771ef0
[   24.409673][   T12] PKRU: 55555554
[   24.409770][   T12] Call Trace:
[   24.409857][   T12]  <TASK>
[   24.409919][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   24.410069][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   24.410219][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   24.410337][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   24.410457][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   24.410573][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   24.410697][   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)
[   24.410822][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   24.410942][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   24.411057][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.411176][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   24.411295][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   24.411410][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   24.411529][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   24.411651][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.411775][   T12]  process_one_work (kernel/workqueue.c:3314)
[   24.411895][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   24.412010][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.412132][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   24.412252][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   24.412367][   T12]  kthread (kernel/kthread.c:436)
[   24.412456][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   24.412602][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.412723][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   24.412847][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   24.412993][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   24.413110][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.413227][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   24.415254][   T12] ------------[ cut here ]------------
| [   24.415373][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   24.415601][   T12] Modules linked in:
| [   24.415968][   T12] Tainted: [W]=WARN
[   24.416057][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.416205][   T12] Workqueue: netns cleanup_net
[   24.416326][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.416480][   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
[   24.416910][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   24.417056][   T12] RAX: 00000000ffffffa6 RBX: ff11000002859e00 RCX: 1ff4000000018eed
[   24.417235][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000002859ebc
[   24.417413][   T12] RBP: ff1100000fd61000 R08: 1fe220000050b3d9 R09: ff11000001aed1d0
[   24.417587][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   24.417777][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   24.417952][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   24.418162][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.418309][   T12] CR2: 00007fa0a901cb20 CR3: 00000000108d9003 CR4: 0000000000771ef0
[   24.418484][   T12] PKRU: 55555554
[   24.418571][   T12] Call Trace:
[   24.418663][   T12]  <TASK>
[   24.418724][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   24.418883][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   24.419027][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   24.419144][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   24.419261][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   24.419377][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   24.419494][   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)
[   24.419611][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   24.419740][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   24.419858][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.419979][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   24.420096][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   24.420211][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   24.420335][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   24.420450][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.420568][   T12]  process_one_work (kernel/workqueue.c:3314)
[   24.420693][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   24.420817][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.420940][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   24.421061][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   24.421179][   T12]  kthread (kernel/kthread.c:436)
[   24.421268][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   24.421417][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.421533][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   24.421657][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   24.421805][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   24.421922][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.422038][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   24.437926][  T208] ------------[ cut here ]------------
| [   24.438111][  T208] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/208
| [   24.438419][  T208] Modules linked in:
| [   24.438951][  T208] Tainted: [W]=WARN
[   24.439095][  T208] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.439306][  T208] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.439524][  T208] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.440056][  T208] RSP: 0018:ffa0000000557a80 EFLAGS: 00010286
[   24.440270][  T208] RAX: 00000000ffffffa6 RBX: ff110000051a9000 RCX: 1ff40000000aaf16
[   24.440512][  T208] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000051a90bc
[   24.440770][  T208] RBP: ff1100000fbd4000 R08: 1fe2200000a35219 R09: ff11000008ed2e80
[   24.441013][  T208] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   24.441253][  T208] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fbd4000
[   24.441497][  T208] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   24.441791][  T208] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.442005][  T208] CR2: 00007fa0a8f22bc0 CR3: 000000000bdc3004 CR4: 0000000000771ef0
[   24.442248][  T208] PKRU: 55555554
[   24.442392][  T208] Call Trace:
[   24.442537][  T208]  <TASK>
[   24.442658][  T208]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.442851][  T208]  ? notifier_call_chain (kernel/notifier.c:85)
[   24.443031][  T208]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.443179][  T208]  register_netdevice (net/core/dev.c:11488)
[   24.443359][  T208]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   24.443567][  T208]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   24.443765][  T208]  register_netdev (net/core/dev.c:11552)
[   24.443945][  T208]  loopback_net_init (drivers/net/loopback.c:218)
[   24.444128][  T208]  ops_init (net/core/net_namespace.c:137)
[   24.444275][  T208]  setup_net (net/core/net_namespace.c:446)
[   24.444421][  T208]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   24.444596][  T208]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   24.444794][  T208]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   24.444974][  T208]  copy_net_ns (net/core/net_namespace.c:579)
[   24.445154][  T208]  create_new_namespaces (kernel/nsproxy.c:132)
[   24.445339][  T208]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   24.445517][  T208]  ksys_unshare (kernel/fork.c:3243)
[   24.445703][  T208]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.445892][  T208]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   24.446071][  T208]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.446250][  T208]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   24.446430][  T208]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.446613][  T208]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   24.446811][  T208]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   24.446988][  T208]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.447166][  T208]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   24.447344][  T208]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.447522][  T208]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.447750][  T208] RIP: 0033:0x7fa0a8f22bcb
[   24.447934][  T208] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   24.448442][  T208] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   24.448691][  T208] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   24.448943][  T208] RDX: 00000000004064a0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   24.449186][  T208] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   24.449427][  T208] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   24.449674][  T208] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   24.451971][   T12] ------------[ cut here ]------------
| [   24.452092][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   24.452323][   T12] Modules linked in:
| [   24.452689][   T12] Tainted: [W]=WARN
[   24.452786][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.452936][   T12] Workqueue: netns cleanup_net
[   24.453060][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.453213][   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
[   24.453638][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   24.453794][   T12] RAX: 00000000ffffffa6 RBX: ff11000002859380 RCX: 1ff4000000018ed5
[   24.453969][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000285943c
[   24.454146][   T12] RBP: ff1100000fc49000 R08: 1fe220000050b289 R09: ff11000001aed1d0
[   24.454321][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   24.454497][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   24.454678][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   24.454898][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.455047][   T12] CR2: 00007fa0a901cb20 CR3: 00000000108d9003 CR4: 0000000000771ef0
[   24.455225][   T12] PKRU: 55555554
[   24.455314][   T12] Call Trace:
[   24.455403][   T12]  <TASK>
[   24.455469][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   24.455629][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   24.455789][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   24.455913][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   24.456034][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   24.456153][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   24.456272][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   24.456391][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   24.456511][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   24.456635][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.456762][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   24.456882][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   24.456999][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   24.457125][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   24.457243][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.457364][   T12]  process_one_work (kernel/workqueue.c:3314)
[   24.457488][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   24.457607][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.457741][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   24.457864][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   24.457981][   T12]  kthread (kernel/kthread.c:436)
[   24.458070][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   24.458217][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.458336][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   24.458466][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   24.458617][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   24.458743][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.458862][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   24.464152][  T208] ------------[ cut here ]------------
| [   24.464331][  T208] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/208
| [   24.464651][  T208] Modules linked in:
| [   24.465157][  T208] Tainted: [W]=WARN
[   24.465301][  T208] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.465508][  T208] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.465730][  T208] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.466250][  T208] RSP: 0018:ffa0000000557918 EFLAGS: 00010286
[   24.466462][  T208] RAX: 00000000ffffffa6 RBX: ff110000028591c0 RCX: 1ff40000000aaee9
[   24.466710][  T208] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000285927c
[   24.466963][  T208] RBP: ff1100000ff69000 R08: 1fe220000050b251 R09: ff11000008ed2e80
[   24.467204][  T208] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   24.467446][  T208] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000ff69000
[   24.467695][  T208] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   24.467980][  T208] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.468189][  T208] CR2: 00007fa0a8f22bc0 CR3: 000000000bdc3004 CR4: 0000000000771ef0
[   24.468433][  T208] PKRU: 55555554
[   24.468576][  T208] Call Trace:
[   24.468727][  T208]  <TASK>
[   24.468854][  T208]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.469032][  T208]  ? notifier_call_chain (kernel/notifier.c:85)
[   24.469209][  T208]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.469356][  T208]  register_netdevice (net/core/dev.c:11488)
[   24.469536][  T208]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   24.469767][  T208]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   24.469951][  T208]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   24.470130][  T208]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   24.470306][  T208]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   24.470485][  T208]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   24.470671][  T208]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   24.470866][  T208]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   24.471052][  T208]  ops_init (net/core/net_namespace.c:137)
[   24.471200][  T208]  setup_net (net/core/net_namespace.c:446)
[   24.471347][  T208]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   24.471523][  T208]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   24.471711][  T208]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   24.471906][  T208]  copy_net_ns (net/core/net_namespace.c:579)
[   24.472087][  T208]  create_new_namespaces (kernel/nsproxy.c:132)
[   24.472271][  T208]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   24.472451][  T208]  ksys_unshare (kernel/fork.c:3243)
[   24.472636][  T208]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.472829][  T208]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   24.473006][  T208]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.473186][  T208]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   24.473365][  T208]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.473549][  T208]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   24.473750][  T208]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   24.473928][  T208]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.474105][  T208]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   24.474281][  T208]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.474469][  T208]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.474684][  T208] RIP: 0033:0x7fa0a8f22bcb
[   24.474885][  T208] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   24.475391][  T208] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   24.475640][  T208] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   24.475893][  T208] RDX: 00000000004064a0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   24.476136][  T208] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   24.476375][  T208] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   24.476614][  T208] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   24.481365][  T208] ------------[ cut here ]------------
| [   24.481540][  T208] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/208
| [   24.481869][  T208] Modules linked in:
| [   24.482361][  T208] Tainted: [W]=WARN
[   24.482507][  T208] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.482726][  T208] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.482956][  T208] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.483470][  T208] RSP: 0018:ffa00000005578f8 EFLAGS: 00010286
[   24.483689][  T208] RAX: 00000000ffffffa6 RBX: ff11000002856e40 RCX: 1ff40000000aaee5
[   24.483945][  T208] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000002856efc
[   24.484187][  T208] RBP: ff1100001035c000 R08: 1fe220000050ade1 R09: ff11000008ed2e80
[   24.484433][  T208] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   24.484682][  T208] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100001035c000
[   24.484940][  T208] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   24.485217][  T208] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.485434][  T208] CR2: 00007fa0a8f22bc0 CR3: 000000000bdc3004 CR4: 0000000000771ef0
[   24.485690][  T208] PKRU: 55555554
[   24.485850][  T208] Call Trace:
[   24.485996][  T208]  <TASK>
[   24.486112][  T208]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.486294][  T208]  ? notifier_call_chain (kernel/notifier.c:85)
[   24.486474][  T208]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.486632][  T208]  register_netdevice (net/core/dev.c:11488)
[   24.486830][  T208]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   24.487042][  T208]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   24.487221][  T208]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   24.487400][  T208]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   24.487580][  T208]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   24.487777][  T208]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   24.487960][  T208]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   24.488140][  T208]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   24.488319][  T208]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   24.488499][  T208]  vti_init_net (net/ipv4/ip_vti.c:517)
[   24.488687][  T208]  ops_init (net/core/net_namespace.c:137)
[   24.488848][  T208]  setup_net (net/core/net_namespace.c:446)
[   24.488996][  T208]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   24.489173][  T208]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   24.489356][  T208]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   24.489538][  T208]  copy_net_ns (net/core/net_namespace.c:579)
[   24.489726][  T208]  create_new_namespaces (kernel/nsproxy.c:132)
[   24.489921][  T208]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   24.490101][  T208]  ksys_unshare (kernel/fork.c:3243)
[   24.490278][  T208]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.490456][  T208]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   24.490644][  T208]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.490837][  T208]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   24.491018][  T208]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.491199][  T208]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   24.491377][  T208]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   24.491554][  T208]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.491754][  T208]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   24.491932][  T208]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.492113][  T208]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.492319][  T208] RIP: 0033:0x7fa0a8f22bcb
[   24.492503][  T208] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   24.493030][  T208] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   24.493277][  T208] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   24.493518][  T208] RDX: 00000000004064a0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   24.493782][  T208] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   24.494025][  T208] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   24.494271][  T208] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   24.498787][  T208] ------------[ cut here ]------------
| [   24.498967][  T208] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/208
| [   24.499268][  T208] Modules linked in:
| [   24.499771][  T208] Tainted: [W]=WARN
[   24.499915][  T208] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.500125][  T208] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.500340][  T208] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.500866][  T208] RSP: 0018:ffa0000000557a78 EFLAGS: 00010286
[   24.501077][  T208] RAX: 00000000ffffffa6 RBX: ff1100000c1c38c0 RCX: 1ff40000000aaf15
[   24.501321][  T208] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c1c397c
[   24.501561][  T208] RBP: ff1100000f021000 R08: 1fe2200001838731 R09: ff11000008ed2e80
[   24.501816][  T208] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   24.502057][  T208] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f021000
[   24.502302][  T208] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   24.502578][  T208] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.502806][  T208] CR2: 00007fa0a8f22bc0 CR3: 000000000bdc3004 CR4: 0000000000771ef0
[   24.503050][  T208] PKRU: 55555554
[   24.503192][  T208] Call Trace:
[   24.503335][  T208]  <TASK>
[   24.503452][  T208]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.503636][  T208]  ? notifier_call_chain (kernel/notifier.c:85)
[   24.503825][  T208]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.503972][  T208]  register_netdevice (net/core/dev.c:11488)
[   24.504150][  T208]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   24.504357][  T208]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.504537][  T208]  register_netdev (net/core/dev.c:11552)
[   24.504725][  T208]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   24.504920][  T208]  ops_init (net/core/net_namespace.c:137)
[   24.505067][  T208]  setup_net (net/core/net_namespace.c:446)
[   24.505213][  T208]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   24.505389][  T208]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   24.505566][  T208]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   24.505764][  T208]  copy_net_ns (net/core/net_namespace.c:579)
[   24.505945][  T208]  create_new_namespaces (kernel/nsproxy.c:132)
[   24.506125][  T208]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   24.506304][  T208]  ksys_unshare (kernel/fork.c:3243)
[   24.506480][  T208]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.506663][  T208]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   24.506851][  T208]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.507030][  T208]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   24.507214][  T208]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.507393][  T208]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   24.507571][  T208]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   24.507768][  T208]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.507947][  T208]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   24.508123][  T208]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.508300][  T208]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.508508][  T208] RIP: 0033:0x7fa0a8f22bcb
[   24.508696][  T208] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   24.509206][  T208] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   24.509449][  T208] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   24.509693][  T208] RDX: 00000000004064a0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   24.509942][  T208] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   24.510182][  T208] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   24.510421][  T208] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   24.519731][  T208] ------------[ cut here ]------------
| [   24.520442][  T208] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/208
| [   24.520823][  T208] Modules linked in:
| [   24.521431][  T208] Tainted: [W]=WARN
[   24.521640][  T208] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.521918][  T208] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.522190][  T208] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.522777][  T208] RSP: 0018:ffa0000000557a68 EFLAGS: 00010286
[   24.523044][  T208] RAX: 00000000ffffffa6 RBX: ff1100000c1c2ac0 RCX: 1ff40000000aaf13
[   24.523340][  T208] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c1c2b7c
[   24.523647][  T208] RBP: ff1100000f80c000 R08: 1fe2200001838571 R09: ff11000008ed2e80
[   24.523956][  T208] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   24.524253][  T208] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f80c000
[   24.524549][  T208] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   24.524895][  T208] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.525165][  T208] CR2: 00007fa0a8f22bc0 CR3: 000000000bdc3004 CR4: 0000000000771ef0
[   24.525465][  T208] PKRU: 55555554
[   24.525669][  T208] Call Trace:
[   24.525884][  T208]  <TASK>
[   24.526055][  T208]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.526288][  T208]  ? notifier_call_chain (kernel/notifier.c:85)
[   24.526521][  T208]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.526792][  T208]  register_netdevice (net/core/dev.c:11488)
[   24.527018][  T208]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   24.527229][  T208]  register_netdev (net/core/dev.c:11552)
[   24.527408][  T208]  sit_init_net (net/ipv6/sit.c:1860)
[   24.527588][  T208]  ops_init (net/core/net_namespace.c:137)
[   24.527756][  T208]  setup_net (net/core/net_namespace.c:446)
[   24.527903][  T208]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   24.528079][  T208]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   24.528260][  T208]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   24.528440][  T208]  copy_net_ns (net/core/net_namespace.c:579)
[   24.528628][  T208]  create_new_namespaces (kernel/nsproxy.c:132)
[   24.528820][  T208]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   24.528999][  T208]  ksys_unshare (kernel/fork.c:3243)
[   24.529176][  T208]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.529353][  T208]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   24.529544][  T208]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.529727][  T208]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   24.529920][  T208]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.530098][  T208]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   24.530276][  T208]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   24.530454][  T208]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.530640][  T208]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   24.530832][  T208]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.531017][  T208]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.531226][  T208] RIP: 0033:0x7fa0a8f22bcb
[   24.531410][  T208] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   24.531937][  T208] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   24.532186][  T208] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   24.532430][  T208] RDX: 00000000004064a0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   24.532680][  T208] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   24.532936][  T208] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   24.533180][  T208] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   24.552944][  T208] ------------[ cut here ]------------
| [   24.553128][  T208] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/208
| [   24.553438][  T208] Modules linked in:
| [   24.553952][  T208] Tainted: [W]=WARN
[   24.554099][  T208] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.554310][  T208] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.554529][  T208] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.555062][  T208] RSP: 0018:ffa0000000557a78 EFLAGS: 00010286
[   24.555277][  T208] RAX: 00000000ffffffa6 RBX: ff1100000b616740 RCX: 1ff40000000aaf15
[   24.555523][  T208] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b6167fc
[   24.555787][  T208] RBP: ff11000002404000 R08: 1fe22000016c2d01 R09: ff11000008ed2e80
[   24.556032][  T208] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   24.556277][  T208] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000002404000
[   24.556525][  T208] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   24.556827][  T208] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.557043][  T208] CR2: 00007fa0a8f22bc0 CR3: 000000000bdc3004 CR4: 0000000000771ef0
[   24.557291][  T208] PKRU: 55555554
[   24.557437][  T208] Call Trace:
[   24.557585][  T208]  <TASK>
[   24.557710][  T208]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.557906][  T208]  ? notifier_call_chain (kernel/notifier.c:85)
[   24.558088][  T208]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.558237][  T208]  register_netdevice (net/core/dev.c:11488)
[   24.558418][  T208]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   24.558636][  T208]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.558833][  T208]  register_netdev (net/core/dev.c:11552)
[   24.559015][  T208]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   24.559197][  T208]  ops_init (net/core/net_namespace.c:137)
[   24.559346][  T208]  setup_net (net/core/net_namespace.c:446)
[   24.559495][  T208]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   24.559678][  T208]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   24.559872][  T208]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   24.560054][  T208]  copy_net_ns (net/core/net_namespace.c:579)
[   24.560235][  T208]  create_new_namespaces (kernel/nsproxy.c:132)
[   24.560418][  T208]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   24.560598][  T208]  ksys_unshare (kernel/fork.c:3243)
[   24.560799][  T208]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.560982][  T208]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   24.561158][  T208]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.561339][  T208]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   24.561520][  T208]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.561710][  T208]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   24.561902][  T208]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   24.562080][  T208]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.562260][  T208]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   24.562438][  T208]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.562625][  T208]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.562847][  T208] RIP: 0033:0x7fa0a8f22bcb
[   24.563032][  T208] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   24.563542][  T208] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   24.563803][  T208] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   24.564047][  T208] RDX: 00000000004064a0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   24.564289][  T208] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   24.564533][  T208] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   24.564795][  T208] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   24.569201][   T12] ------------[ cut here ]------------
| [   24.569335][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   24.569571][   T12] Modules linked in:
| [   24.569946][   T12] Tainted: [W]=WARN
[   24.570037][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.570185][   T12] Workqueue: netns cleanup_net
[   24.570308][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.570462][   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
[   24.570994][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   24.571143][   T12] RAX: 00000000ffffffa6 RBX: ff1100000b6178c0 RCX: 1ff4000000018eed
[   24.571318][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b61797c
[   24.571597][   T12] RBP: ff11000002404000 R08: 1fe22000016c2f31 R09: ff11000001aed1d0
[   24.571817][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   24.571998][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   24.572190][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   24.572406][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.572567][   T12] CR2: 00007fa0a901cb20 CR3: 00000000108d9003 CR4: 0000000000771ef0
[   24.572774][   T12] PKRU: 55555554
[   24.572863][   T12] Call Trace:
[   24.572962][   T12]  <TASK>
[   24.573023][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   24.573207][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   24.573351][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   24.573477][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   24.573607][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   24.573740][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   24.573867][   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)
[   24.574000][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   24.574125][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   24.574242][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.574379][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   24.574498][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   24.574637][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   24.574770][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   24.574885][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.575008][   T12]  process_one_work (kernel/workqueue.c:3314)
[   24.575133][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   24.575251][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.575380][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   24.575527][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   24.575648][   T12]  kthread (kernel/kthread.c:436)
[   24.575750][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   24.575894][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.576011][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   24.576140][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   24.576293][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   24.576410][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.576529][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   24.578751][   T12] ------------[ cut here ]------------
| [   24.578877][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   24.579114][   T12] Modules linked in:
| [   24.579504][   T12] Tainted: [W]=WARN
[   24.579592][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.579818][   T12] Workqueue: netns cleanup_net
[   24.579942][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.580182][   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
[   24.580602][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   24.580808][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c63e740 RCX: 1ff4000000018eed
[   24.580998][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c63e7fc
[   24.581185][   T12] RBP: ff1100000f80c000 R08: 1fe22000018c7d01 R09: ff11000001aed1d0
[   24.581370][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   24.581555][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   24.581798][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   24.582014][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.582174][   T12] CR2: 00007fa0a901cb20 CR3: 00000000108d9003 CR4: 0000000000771ef0
[   24.582359][   T12] PKRU: 55555554
[   24.582462][   T12] Call Trace:
[   24.582559][   T12]  <TASK>
[   24.582624][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   24.582790][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   24.582941][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   24.583072][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   24.583195][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   24.583329][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   24.583455][   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)
[   24.583579][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   24.583702][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   24.583833][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.583953][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   24.584075][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   24.584191][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   24.584308][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   24.584424][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.584545][   T12]  process_one_work (kernel/workqueue.c:3314)
[   24.584671][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   24.584793][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.584916][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   24.585038][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   24.585160][   T12]  kthread (kernel/kthread.c:436)
[   24.585253][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   24.585399][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.585518][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   24.585639][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   24.585795][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   24.585912][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.586029][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   24.588156][   T12] ------------[ cut here ]------------
| [   24.588277][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   24.588503][   T12] Modules linked in:
| [   24.589284][   T12] Tainted: [W]=WARN
[   24.589419][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.589564][   T12] Workqueue: netns cleanup_net
[   24.589688][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.589889][   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
[   24.590315][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   24.590462][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c63ee40 RCX: 1ff4000000018eed
[   24.590640][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c63eefc
[   24.590862][   T12] RBP: ff1100000f021000 R08: 1fe22000018c7de1 R09: ff11000001aed1d0
[   24.591037][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   24.591215][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   24.591389][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   24.591593][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.591793][   T12] CR2: 00007fa0a901cb20 CR3: 00000000108d9003 CR4: 0000000000771ef0
[   24.591968][   T12] PKRU: 55555554
[   24.592054][   T12] Call Trace:
[   24.592141][   T12]  <TASK>
[   24.592201][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   24.592351][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   24.592496][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   24.592623][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   24.592788][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   24.592907][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   24.593024][   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)
[   24.593146][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   24.593264][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   24.593382][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.593502][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   24.593627][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   24.593790][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   24.593910][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   24.594027][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.594145][   T12]  process_one_work (kernel/workqueue.c:3314)
[   24.594270][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   24.594387][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.594511][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   24.594636][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   24.594799][   T12]  kthread (kernel/kthread.c:436)
[   24.594887][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   24.595031][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.595148][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   24.595269][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   24.595416][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   24.595534][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.595656][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   24.599136][   T12] ------------[ cut here ]------------
| [   24.599257][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   24.599488][   T12] Modules linked in:
| [   24.599856][   T12] Tainted: [W]=WARN
[   24.599947][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.600094][   T12] Workqueue: netns cleanup_net
[   24.600215][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.600367][   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
[   24.600792][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   24.600942][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c63f1c0 RCX: 1ff4000000018eed
[   24.601120][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c63f27c
[   24.601294][   T12] RBP: ff1100001035c000 R08: 1fe22000018c7e51 R09: ff11000001aed1d0
[   24.601466][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   24.601646][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   24.601826][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   24.602037][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.602184][   T12] CR2: 00007fa0a901cb20 CR3: 00000000108d9003 CR4: 0000000000771ef0
[   24.602363][   T12] PKRU: 55555554
[   24.602451][   T12] Call Trace:
[   24.602539][   T12]  <TASK>
[   24.602601][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   24.602765][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   24.602913][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   24.603031][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   24.603151][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   24.603269][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   24.603387][   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)
[   24.603507][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   24.603631][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   24.603757][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.603878][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   24.604001][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   24.604122][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   24.604241][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   24.604358][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.604477][   T12]  process_one_work (kernel/workqueue.c:3314)
[   24.604601][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   24.604722][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.605388][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   24.605512][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   24.605633][   T12]  kthread (kernel/kthread.c:436)
[   24.605721][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   24.605912][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.606032][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   24.606149][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   24.606295][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   24.606412][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.606535][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   24.608938][   T12] ------------[ cut here ]------------
| [   24.609053][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   24.609281][   T12] Modules linked in:
| [   24.609636][   T12] Tainted: [W]=WARN
[   24.609724][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.609874][   T12] Workqueue: netns cleanup_net
[   24.609995][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.610150][   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
[   24.610575][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   24.610724][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c63f540 RCX: 1ff4000000018eed
[   24.610904][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c63f5fc
[   24.611078][   T12] RBP: ff1100000ff69000 R08: 1fe22000018c7ec1 R09: ff11000001aed1d0
[   24.611251][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   24.611425][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   24.611612][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   24.611826][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.611977][   T12] CR2: 00007fa0a901cb20 CR3: 00000000108d9003 CR4: 0000000000771ef0
[   24.612158][   T12] PKRU: 55555554
[   24.612246][   T12] Call Trace:
[   24.612333][   T12]  <TASK>
[   24.612395][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   24.612544][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   24.612695][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   24.612817][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   24.612938][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   24.613056][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   24.613174][   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)
[   24.613293][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   24.613414][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   24.613531][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.613655][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   24.613777][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   24.613896][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   24.614014][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   24.614131][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.614251][   T12]  process_one_work (kernel/workqueue.c:3314)
[   24.614372][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   24.614488][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.614609][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   24.614739][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   24.614856][   T12]  kthread (kernel/kthread.c:436)
[   24.614945][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   24.615095][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.615215][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   24.615332][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   24.615481][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   24.615599][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.615721][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   24.630500][  T210] ------------[ cut here ]------------
| [   24.630690][  T210] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/210
| [   24.631008][  T210] Modules linked in:
| [   24.631500][  T210] Tainted: [W]=WARN
[   24.631653][  T210] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.631880][  T210] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.632099][  T210] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.632613][  T210] RSP: 0018:ffa00000008a7a80 EFLAGS: 00010286
[   24.632847][  T210] RAX: 00000000ffffffa6 RBX: ff1100000e4aee40 RCX: 1ff4000000114f16
[   24.633089][  T210] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e4aeefc
[   24.633333][  T210] RBP: ff1100000fbb1000 R08: 1fe2200001c95de1 R09: ff11000009b5ae80
[   24.633578][  T210] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   24.633839][  T210] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fbb1000
[   24.634088][  T210] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   24.634369][  T210] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.634581][  T210] CR2: 00007fa0a8f22bc0 CR3: 000000001099d005 CR4: 0000000000771ef0
[   24.634844][  T210] PKRU: 55555554
[   24.634989][  T210] Call Trace:
[   24.635135][  T210]  <TASK>
[   24.635250][  T210]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.635430][  T210]  ? notifier_call_chain (kernel/notifier.c:85)
[   24.635609][  T210]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.635777][  T210]  register_netdevice (net/core/dev.c:11488)
[   24.635963][  T210]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   24.636176][  T210]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   24.636356][  T210]  register_netdev (net/core/dev.c:11552)
[   24.636534][  T210]  loopback_net_init (drivers/net/loopback.c:218)
[   24.636724][  T210]  ops_init (net/core/net_namespace.c:137)
[   24.636887][  T210]  setup_net (net/core/net_namespace.c:446)
[   24.637037][  T210]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   24.637215][  T210]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   24.637398][  T210]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   24.637579][  T210]  copy_net_ns (net/core/net_namespace.c:579)
[   24.637777][  T210]  create_new_namespaces (kernel/nsproxy.c:132)
[   24.637958][  T210]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   24.638137][  T210]  ksys_unshare (kernel/fork.c:3243)
[   24.638313][  T210]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.638492][  T210]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   24.638679][  T210]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.638872][  T210]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   24.639052][  T210]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.639231][  T210]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   24.639409][  T210]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   24.639588][  T210]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.639784][  T210]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   24.639965][  T210]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.640143][  T210]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.640351][  T210] RIP: 0033:0x7fa0a8f22bcb
[   24.640538][  T210] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   24.641067][  T210] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   24.641312][  T210] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   24.641553][  T210] RDX: 00000000004064a0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   24.641815][  T210] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   24.642056][  T210] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   24.642300][  T210] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   24.651309][  T210] ------------[ cut here ]------------
| [   24.651490][  T210] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/210
| [   24.651815][  T210] Modules linked in:
| [   24.652311][  T210] Tainted: [W]=WARN
[   24.652455][  T210] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.652673][  T210] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.652904][  T210] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.653412][  T210] RSP: 0018:ffa00000008a7918 EFLAGS: 00010286
[   24.653629][  T210] RAX: 00000000ffffffa6 RBX: ff1100000c9071c0 RCX: 1ff4000000114ee9
[   24.653885][  T210] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c90727c
[   24.654125][  T210] RBP: ff11000011ce9000 R08: 1fe2200001920e51 R09: ff11000009b5ae80
[   24.654366][  T210] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   24.654609][  T210] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000011ce9000
[   24.654876][  T210] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   24.655152][  T210] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.655362][  T210] CR2: 00007fa0a8f22bc0 CR3: 000000001099d005 CR4: 0000000000771ef0
[   24.655608][  T210] PKRU: 55555554
[   24.655772][  T210] Call Trace:
[   24.655921][  T210]  <TASK>
[   24.656036][  T210]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.656216][  T210]  ? notifier_call_chain (kernel/notifier.c:85)
[   24.656393][  T210]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.656542][  T210]  register_netdevice (net/core/dev.c:11488)
[   24.656729][  T210]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   24.656951][  T210]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   24.657135][  T210]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   24.657313][  T210]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   24.657491][  T210]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   24.657679][  T210]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   24.657874][  T210]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   24.658055][  T210]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   24.658237][  T210]  ops_init (net/core/net_namespace.c:137)
[   24.658386][  T210]  setup_net (net/core/net_namespace.c:446)
[   24.658538][  T210]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   24.658722][  T210]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   24.658917][  T210]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   24.659098][  T210]  copy_net_ns (net/core/net_namespace.c:579)
[   24.659277][  T210]  create_new_namespaces (kernel/nsproxy.c:132)
[   24.659458][  T210]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   24.659644][  T210]  ksys_unshare (kernel/fork.c:3243)
[   24.659839][  T210]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.660018][  T210]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   24.660195][  T210]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.660374][  T210]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   24.660554][  T210]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.660754][  T210]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   24.660934][  T210]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   24.661112][  T210]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.661293][  T210]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   24.661471][  T210]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.661656][  T210]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.661877][  T210] RIP: 0033:0x7fa0a8f22bcb
[   24.662061][  T210] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   24.662575][  T210] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   24.662840][  T210] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   24.663081][  T210] RDX: 00000000004064a0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   24.663325][  T210] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   24.663571][  T210] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   24.663832][  T210] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   24.666108][   T12] ------------[ cut here ]------------
| [   24.666234][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   24.666466][   T12] Modules linked in:
| [   24.667310][   T12] Tainted: [W]=WARN
[   24.667401][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.667551][   T12] Workqueue: netns cleanup_net
[   24.667679][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.667840][   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
[   24.668265][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   24.668415][   T12] RAX: 00000000ffffffa6 RBX: ff1100000e440ac0 RCX: 1ff4000000018ed5
[   24.668592][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e440b7c
[   24.668775][   T12] RBP: ff1100000fbd4000 R08: 1fe2200001c88171 R09: ff11000001aed1d0
[   24.668956][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   24.669133][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   24.669316][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   24.669526][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.669681][   T12] CR2: 00007fa0a901cb20 CR3: 00000000108d9003 CR4: 0000000000771ef0
[   24.669867][   T12] PKRU: 55555554
[   24.669956][   T12] Call Trace:
[   24.670044][   T12]  <TASK>
[   24.670107][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   24.670260][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   24.670413][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   24.670536][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   24.670670][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   24.670801][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   24.670921][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   24.671042][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   24.671165][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   24.671283][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.671405][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   24.671525][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   24.671646][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   24.671772][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   24.671895][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.672016][   T12]  process_one_work (kernel/workqueue.c:3314)
[   24.672145][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   24.672263][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.672388][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   24.672513][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   24.672637][   T12]  kthread (kernel/kthread.c:436)
[   24.672727][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   24.672881][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.673001][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   24.673119][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   24.673272][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   24.673398][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.673518][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   24.678689][  T210] ------------[ cut here ]------------
| [   24.678879][  T210] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/210
| [   24.679187][  T210] Modules linked in:
| [   24.679688][  T210] Tainted: [W]=WARN
[   24.679849][  T210] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.680065][  T210] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.680284][  T210] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.680819][  T210] RSP: 0018:ffa00000008a78f8 EFLAGS: 00010286
[   24.681031][  T210] RAX: 00000000ffffffa6 RBX: ff1100000c906e40 RCX: 1ff4000000114ee5
[   24.681279][  T210] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c906efc
[   24.681520][  T210] RBP: ff1100000f019000 R08: 1fe2200001920de1 R09: ff11000009b5ae80
[   24.681784][  T210] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   24.682030][  T210] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f019000
[   24.682283][  T210] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   24.682563][  T210] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.682806][  T210] CR2: 00007fa0a8f22bc0 CR3: 000000001099d005 CR4: 0000000000771ef0
[   24.683054][  T210] PKRU: 55555554
[   24.683200][  T210] Call Trace:
[   24.683346][  T210]  <TASK>
[   24.683465][  T210]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.683653][  T210]  ? notifier_call_chain (kernel/notifier.c:85)
[   24.683846][  T210]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.683995][  T210]  register_netdevice (net/core/dev.c:11488)
[   24.684177][  T210]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   24.684389][  T210]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   24.684572][  T210]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   24.684777][  T210]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   24.684957][  T210]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   24.685136][  T210]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   24.685318][  T210]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   24.685499][  T210]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   24.685687][  T210]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   24.685886][  T210]  vti_init_net (net/ipv4/ip_vti.c:517)
[   24.686068][  T210]  ops_init (net/core/net_namespace.c:137)
[   24.686221][  T210]  setup_net (net/core/net_namespace.c:446)
[   24.686368][  T210]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   24.686546][  T210]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   24.686730][  T210]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   24.686925][  T210]  copy_net_ns (net/core/net_namespace.c:579)
[   24.687106][  T210]  create_new_namespaces (kernel/nsproxy.c:132)
[   24.687288][  T210]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   24.687470][  T210]  ksys_unshare (kernel/fork.c:3243)
[   24.687656][  T210]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.687850][  T210]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   24.688028][  T210]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.688208][  T210]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   24.688389][  T210]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.688568][  T210]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   24.688770][  T210]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   24.688950][  T210]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.689129][  T210]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   24.689307][  T210]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.689491][  T210]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.689707][  T210] RIP: 0033:0x7fa0a8f22bcb
[   24.689905][  T210] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   24.690420][  T210] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   24.690674][  T210] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   24.690930][  T210] RDX: 00000000004064a0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   24.691175][  T210] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   24.691418][  T210] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   24.691664][  T210] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   24.696204][  T210] ------------[ cut here ]------------
| [   24.696384][  T210] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/210
| [   24.696694][  T210] Modules linked in:
| [   24.697196][  T210] Tainted: [W]=WARN
[   24.697341][  T210] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.697551][  T210] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.697787][  T210] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.698298][  T210] RSP: 0018:ffa00000008a7a78 EFLAGS: 00010286
[   24.698511][  T210] RAX: 00000000ffffffa6 RBX: ff1100000e4ae200 RCX: 1ff4000000114f15
[   24.698771][  T210] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e4ae2bc
[   24.699013][  T210] RBP: ff1100000c414000 R08: 1fe2200001c95c59 R09: ff11000009b5ae80
[   24.699258][  T210] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   24.699499][  T210] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000c414000
[   24.699764][  T210] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   24.700039][  T210] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.700255][  T210] CR2: 00007fa0a8f22bc0 CR3: 000000001099d005 CR4: 0000000000771ef0
[   24.700498][  T210] PKRU: 55555554
[   24.700648][  T210] Call Trace:
[   24.700806][  T210]  <TASK>
[   24.700923][  T210]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.701102][  T210]  ? notifier_call_chain (kernel/notifier.c:85)
[   24.701280][  T210]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.701431][  T210]  register_netdevice (net/core/dev.c:11488)
[   24.701613][  T210]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   24.701841][  T210]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.702023][  T210]  register_netdev (net/core/dev.c:11552)
[   24.702201][  T210]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   24.702382][  T210]  ops_init (net/core/net_namespace.c:137)
[   24.702530][  T210]  setup_net (net/core/net_namespace.c:446)
[   24.702686][  T210]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   24.702877][  T210]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   24.703055][  T210]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   24.703236][  T210]  copy_net_ns (net/core/net_namespace.c:579)
[   24.703418][  T210]  create_new_namespaces (kernel/nsproxy.c:132)
[   24.703596][  T210]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   24.703795][  T210]  ksys_unshare (kernel/fork.c:3243)
[   24.703976][  T210]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.704153][  T210]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   24.704330][  T210]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.704508][  T210]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   24.704694][  T210]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.704883][  T210]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   24.705060][  T210]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   24.705236][  T210]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.705416][  T210]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   24.705593][  T210]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.705793][  T210]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.706003][  T210] RIP: 0033:0x7fa0a8f22bcb
[   24.706185][  T210] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   24.706704][  T210] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   24.706962][  T210] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   24.707204][  T210] RDX: 00000000004064a0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   24.707444][  T210] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   24.707695][  T210] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   24.707946][  T210] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   24.712483][  T210] ------------[ cut here ]------------
| [   24.712666][  T210] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/210
| [   24.712987][  T210] Modules linked in:
| [   24.713476][  T210] Tainted: [W]=WARN
[   24.713631][  T210] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.713853][  T210] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.714069][  T210] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.714578][  T210] RSP: 0018:ffa00000008a7a68 EFLAGS: 00010286
[   24.714811][  T210] RAX: 00000000ffffffa6 RBX: ff1100000bea0e40 RCX: 1ff4000000114f13
[   24.715052][  T210] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bea0efc
[   24.715294][  T210] RBP: ff11000011c39000 R08: 1fe22000017d41e1 R09: ff11000009b5ae80
[   24.715536][  T210] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   24.715802][  T210] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000011c39000
[   24.716047][  T210] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   24.716325][  T210] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.716538][  T210] CR2: 00007fa0a8f22bc0 CR3: 000000001099d005 CR4: 0000000000771ef0
[   24.716804][  T210] PKRU: 55555554
[   24.716953][  T210] Call Trace:
[   24.717099][  T210]  <TASK>
[   24.717213][  T210]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.717391][  T210]  ? notifier_call_chain (kernel/notifier.c:85)
[   24.717569][  T210]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.717726][  T210]  register_netdevice (net/core/dev.c:11488)
[   24.717920][  T210]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   24.718133][  T210]  register_netdev (net/core/dev.c:11552)
[   24.718316][  T210]  sit_init_net (net/ipv6/sit.c:1860)
[   24.718498][  T210]  ops_init (net/core/net_namespace.c:137)
[   24.718652][  T210]  setup_net (net/core/net_namespace.c:446)
[   24.718813][  T210]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   24.718991][  T210]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   24.719170][  T210]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   24.719351][  T210]  copy_net_ns (net/core/net_namespace.c:579)
[   24.719536][  T210]  create_new_namespaces (kernel/nsproxy.c:132)
[   24.719725][  T210]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   24.719920][  T210]  ksys_unshare (kernel/fork.c:3243)
[   24.720098][  T210]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.720278][  T210]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   24.720454][  T210]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.720639][  T210]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   24.720836][  T210]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.721018][  T210]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   24.721195][  T210]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   24.721373][  T210]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.721551][  T210]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   24.721750][  T210]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.721933][  T210]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.722142][  T210] RIP: 0033:0x7fa0a8f22bcb
[   24.722329][  T210] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   24.722862][  T210] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   24.723108][  T210] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   24.723355][  T210] RDX: 00000000004064a0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   24.723596][  T210] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   24.723857][  T210] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   24.724100][  T210] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   24.729201][  T210] ------------[ cut here ]------------
| [   24.729380][  T210] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/210
| [   24.729691][  T210] Modules linked in:
| [   24.730199][  T210] Tainted: [W]=WARN
[   24.730344][  T210] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.730556][  T210] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.730794][  T210] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.731305][  T210] RSP: 0018:ffa00000008a7a78 EFLAGS: 00010286
[   24.731518][  T210] RAX: 00000000ffffffa6 RBX: ff11000005108580 RCX: 1ff4000000114f15
[   24.731781][  T210] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000510863c
[   24.732030][  T210] RBP: ff1100000f804000 R08: 1fe2200000a210c9 R09: ff11000009b5ae80
[   24.732273][  T210] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   24.732517][  T210] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f804000
[   24.732783][  T210] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   24.733060][  T210] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.733275][  T210] CR2: 00007fa0a8f22bc0 CR3: 000000001099d005 CR4: 0000000000771ef0
[   24.733519][  T210] PKRU: 55555554
[   24.733671][  T210] Call Trace:
[   24.733830][  T210]  <TASK>
[   24.733947][  T210]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.734129][  T210]  ? notifier_call_chain (kernel/notifier.c:85)
[   24.734310][  T210]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.734460][  T210]  register_netdevice (net/core/dev.c:11488)
[   24.734648][  T210]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   24.734871][  T210]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.735054][  T210]  register_netdev (net/core/dev.c:11552)
[   24.735253][  T210]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   24.735436][  T210]  ops_init (net/core/net_namespace.c:137)
[   24.735585][  T210]  setup_net (net/core/net_namespace.c:446)
[   24.735753][  T210]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   24.735931][  T210]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   24.736110][  T210]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   24.736292][  T210]  copy_net_ns (net/core/net_namespace.c:579)
[   24.736474][  T210]  create_new_namespaces (kernel/nsproxy.c:132)
[   24.736663][  T210]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   24.736856][  T210]  ksys_unshare (kernel/fork.c:3243)
[   24.737035][  T210]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.737214][  T210]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   24.737393][  T210]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.737575][  T210]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   24.737774][  T210]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.737953][  T210]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   24.738132][  T210]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   24.738311][  T210]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.738489][  T210]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   24.738675][  T210]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.738871][  T210]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.739083][  T210] RIP: 0033:0x7fa0a8f22bcb
[   24.739268][  T210] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   24.739802][  T210] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   24.740049][  T210] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   24.740290][  T210] RDX: 00000000004064a0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   24.740532][  T210] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   24.740800][  T210] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   24.741043][  T210] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   24.764125][  T212] ------------[ cut here ]------------
| [   24.764273][  T212] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/212
| [   24.764535][  T212] Modules linked in:
| [   24.764943][  T212] Tainted: [W]=WARN
[   24.765044][  T212] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.765210][  T212] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.765381][  T212] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.765861][  T212] RSP: 0018:ffa00000008f7a80 EFLAGS: 00010286
[   24.766030][  T212] RAX: 00000000ffffffa6 RBX: ff1100000bccc740 RCX: 1ff400000011ef16
[   24.766227][  T212] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bccc7fc
[   24.766422][  T212] RBP: ff1100000f14c000 R08: 1fe2200001799901 R09: ff110000100a2e80
[   24.766623][  T212] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   24.766826][  T212] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f14c000
[   24.767026][  T212] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   24.767259][  T212] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.767428][  T212] CR2: 00007fa0a8f22bc0 CR3: 000000001099d006 CR4: 0000000000771ef0
[   24.767631][  T212] PKRU: 55555554
[   24.767730][  T212] Call Trace:
[   24.767834][  T212]  <TASK>
[   24.767903][  T212]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.768036][  T212]  ? notifier_call_chain (kernel/notifier.c:85)
[   24.768167][  T212]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.768269][  T212]  register_netdevice (net/core/dev.c:11488)
[   24.768404][  T212]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   24.768570][  T212]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   24.768707][  T212]  register_netdev (net/core/dev.c:11552)
[   24.768842][  T212]  loopback_net_init (drivers/net/loopback.c:218)
[   24.768977][  T212]  ops_init (net/core/net_namespace.c:137)
[   24.769077][  T212]  setup_net (net/core/net_namespace.c:446)
[   24.769177][  T212]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   24.769308][  T212]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   24.769441][  T212]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   24.769576][  T212]  copy_net_ns (net/core/net_namespace.c:579)
[   24.769714][  T212]  create_new_namespaces (kernel/nsproxy.c:132)
[   24.769874][  T212]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   24.770007][  T212]  ksys_unshare (kernel/fork.c:3243)
[   24.770138][  T212]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.770269][  T212]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   24.770402][  T212]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.770534][  T212]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   24.770674][  T212]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.770811][  T212]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   24.770942][  T212]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   24.771074][  T212]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.771206][  T212]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   24.771339][  T212]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.771473][  T212]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.771639][  T212] RIP: 0033:0x7fa0a8f22bcb
[   24.771781][  T212] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   24.772252][  T212] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   24.772451][  T212] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   24.772651][  T212] RDX: 00000000004064a0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   24.772853][  T212] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   24.773047][  T212] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   24.773245][  T212] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   24.775130][   T12] ------------[ cut here ]------------
| [   24.775258][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   24.775493][   T12] Modules linked in:
| [   24.775865][   T12] Tainted: [W]=WARN
[   24.775955][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.776106][   T12] Workqueue: netns cleanup_net
[   24.776229][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.776381][   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
[   24.776810][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   24.776965][   T12] RAX: 00000000ffffffa6 RBX: ff1100000bccc040 RCX: 1ff4000000018eed
[   24.777146][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bccc0fc
[   24.777323][   T12] RBP: ff1100000f804000 R08: 1fe2200001799821 R09: ff11000001aed1d0
[   24.777501][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   24.777679][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   24.777863][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   24.778070][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.778217][   T12] CR2: 00007fa0a901cb20 CR3: 00000000108d9003 CR4: 0000000000771ef0
[   24.778396][   T12] PKRU: 55555554
[   24.778485][   T12] Call Trace:
[   24.778576][   T12]  <TASK>
[   24.778647][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   24.778812][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   24.778957][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   24.779079][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   24.779197][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   24.779315][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   24.779434][   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)
[   24.779557][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   24.779682][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   24.779803][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.779927][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   24.780045][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   24.780162][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   24.780285][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   24.780402][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.780520][   T12]  process_one_work (kernel/workqueue.c:3314)
[   24.780643][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   24.780766][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.780888][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   24.781009][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   24.781130][   T12]  kthread (kernel/kthread.c:436)
[   24.781218][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   24.781362][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.781480][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   24.781603][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   24.781759][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   24.781878][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.781998][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   24.784202][   T12] ------------[ cut here ]------------
| [   24.784318][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   24.784548][   T12] Modules linked in:
| [   24.784912][   T12] Tainted: [W]=WARN
[   24.785000][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.785151][   T12] Workqueue: netns cleanup_net
[   24.785273][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.785431][   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
[   24.785859][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   24.786006][   T12] RAX: 00000000ffffffa6 RBX: ff1100000bea0580 RCX: 1ff4000000018eed
[   24.786181][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bea063c
[   24.786353][   T12] RBP: ff11000011c39000 R08: 1fe22000017d40c9 R09: ff11000001aed1d0
[   24.786532][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   24.786711][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   24.786895][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   24.787104][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.787250][   T12] CR2: 00007fa0a901cb20 CR3: 00000000108d9003 CR4: 0000000000771ef0
[   24.787424][   T12] PKRU: 55555554
[   24.787511][   T12] Call Trace:
[   24.787598][   T12]  <TASK>
[   24.787661][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   24.787817][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   24.787963][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   24.788081][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   24.788201][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   24.788318][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   24.788436][   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)
[   24.788555][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   24.788679][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   24.788846][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.788965][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   24.789082][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   24.789198][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   24.789361][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   24.789477][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.789597][   T12]  process_one_work (kernel/workqueue.c:3314)
[   24.789720][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   24.789940][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.790063][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   24.790184][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   24.790305][   T12]  kthread (kernel/kthread.c:436)
[   24.790394][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   24.790539][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.790661][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   24.790836][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   24.790983][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   24.791099][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.791216][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   24.793528][   T12] ------------[ cut here ]------------
| [   24.793694][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   24.793983][   T12] Modules linked in:
| [   24.794436][   T12] Tainted: [W]=WARN
[   24.794570][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.794785][   T12] Workqueue: netns cleanup_net
[   24.794954][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.795152][   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
[   24.795612][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   24.795838][   T12] RAX: 00000000ffffffa6 RBX: ff110000097f3380 RCX: 1ff4000000018eed
[   24.796057][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000097f343c
[   24.796278][   T12] RBP: ff1100000c414000 R08: 1fe22000012fe689 R09: ff11000001aed1d0
[   24.796500][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   24.796746][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   24.796976][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   24.797226][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.797423][   T12] CR2: 00007fa0a8e9a0a0 CR3: 000000000b72a006 CR4: 0000000000771ef0
[   24.797651][   T12] PKRU: 55555554
[   24.797799][   T12] Call Trace:
[   24.797933][   T12]  <TASK>
[   24.798040][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   24.798238][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   24.798429][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   24.798599][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   24.798785][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   24.798948][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   24.799114][   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)
[   24.799280][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   24.799447][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   24.799611][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.799801][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   24.799972][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   24.800134][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   24.800301][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   24.800467][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.800640][   T12]  process_one_work (kernel/workqueue.c:3314)
[   24.800824][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   24.800989][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.801162][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   24.801333][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   24.801497][   T12]  kthread (kernel/kthread.c:436)
[   24.801639][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   24.801863][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.802029][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   24.802196][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   24.802393][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   24.802558][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.802746][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   24.805096][   T12] ------------[ cut here ]------------
| [   24.805258][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   24.805530][   T12] Modules linked in:
| [   24.805998][   T12] Tainted: [W]=WARN
[   24.806131][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.806325][   T12] Workqueue: netns cleanup_net
[   24.806492][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.806696][   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
[   24.807167][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   24.807360][   T12] RAX: 00000000ffffffa6 RBX: ff1100000bea1e00 RCX: 1ff4000000018eed
[   24.807579][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bea1ebc
[   24.807820][   T12] RBP: ff1100000f019000 R08: 1fe22000017d43d9 R09: ff11000001aed1d0
[   24.808039][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   24.808261][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   24.808484][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   24.808752][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.808945][   T12] CR2: 00007fa0a8e9a0a0 CR3: 000000000b72a006 CR4: 0000000000771ef0
[   24.809168][   T12] PKRU: 55555554
[   24.809302][   T12] Call Trace:
[   24.809436][   T12]  <TASK>
[   24.809543][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   24.809762][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   24.809956][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   24.810122][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   24.810289][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   24.810454][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   24.810627][   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)
[   24.810807][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   24.810975][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   24.811137][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.811305][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   24.811471][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   24.811640][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   24.811822][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   24.811987][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.812152][   T12]  process_one_work (kernel/workqueue.c:3314)
[   24.812321][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   24.812484][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.812659][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   24.812843][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   24.813008][   T12]  kthread (kernel/kthread.c:436)
[   24.813146][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   24.813338][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.813504][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   24.813677][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   24.813883][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   24.814048][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.814215][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   24.816543][   T12] ------------[ cut here ]------------
| [   24.816709][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   24.817001][   T12] Modules linked in:
| [   24.817444][   T12] Tainted: [W]=WARN
[   24.817578][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.817792][   T12] Workqueue: netns cleanup_net
[   24.817962][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.818163][   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
[   24.818630][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   24.818838][   T12] RAX: 00000000ffffffa6 RBX: ff1100000bea1a80 RCX: 1ff4000000018eed
[   24.819061][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bea1b3c
[   24.819282][   T12] RBP: ff11000011ce9000 R08: 1fe22000017d4369 R09: ff11000001aed1d0
[   24.819501][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   24.819729][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   24.819967][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   24.820218][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.820411][   T12] CR2: 00007fa0a8e9a0a0 CR3: 000000000b72a006 CR4: 0000000000771ef0
[   24.820637][   T12] PKRU: 55555554
[   24.820782][   T12] Call Trace:
[   24.820916][   T12]  <TASK>
[   24.821023][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   24.821223][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   24.821415][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   24.821580][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   24.821765][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   24.821929][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   24.822094][   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)
[   24.822260][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   24.822431][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   24.822594][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.822783][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   24.822950][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   24.823113][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   24.823280][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   24.823444][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.823615][   T12]  process_one_work (kernel/workqueue.c:3314)
[   24.823807][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   24.823971][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.824140][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   24.824310][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   24.824475][   T12]  kthread (kernel/kthread.c:436)
[   24.824610][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   24.824824][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.824990][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   24.825156][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   24.825349][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   24.825514][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.825686][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   24.830634][  T212] ------------[ cut here ]------------
| [   24.830780][  T212] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/212
| [   24.831038][  T212] Modules linked in:
| [   24.831434][  T212] Tainted: [W]=WARN
[   24.831533][  T212] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.831700][  T212] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.831875][  T212] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.832336][  T212] RSP: 0018:ffa00000008f7918 EFLAGS: 00010286
[   24.832501][  T212] RAX: 00000000ffffffa6 RBX: ff1100000ebb8e40 RCX: 1ff400000011eee9
[   24.832698][  T212] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ebb8efc
[   24.832897][  T212] RBP: ff1100000f144000 R08: 1fe2200001d771e1 R09: ff110000100a2e80
[   24.833094][  T212] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   24.833287][  T212] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f144000
[   24.833484][  T212] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   24.833716][  T212] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.833889][  T212] CR2: 00007fa0a8f22bc0 CR3: 000000001099d006 CR4: 0000000000771ef0
[   24.834085][  T212] PKRU: 55555554
[   24.834182][  T212] Call Trace:
[   24.834279][  T212]  <TASK>
[   24.834346][  T212]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.834477][  T212]  ? notifier_call_chain (kernel/notifier.c:85)
[   24.834607][  T212]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.834712][  T212]  register_netdevice (net/core/dev.c:11488)
[   24.834849][  T212]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   24.835012][  T212]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   24.835144][  T212]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   24.835275][  T212]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   24.835404][  T212]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   24.835535][  T212]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   24.835669][  T212]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   24.835811][  T212]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   24.835943][  T212]  ops_init (net/core/net_namespace.c:137)
[   24.836044][  T212]  setup_net (net/core/net_namespace.c:446)
[   24.836143][  T212]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   24.836273][  T212]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   24.836403][  T212]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   24.836535][  T212]  copy_net_ns (net/core/net_namespace.c:579)
[   24.836672][  T212]  create_new_namespaces (kernel/nsproxy.c:132)
[   24.836809][  T212]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   24.836939][  T212]  ksys_unshare (kernel/fork.c:3243)
[   24.837068][  T212]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.837199][  T212]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   24.837328][  T212]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.837461][  T212]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   24.837594][  T212]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.837730][  T212]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   24.837865][  T212]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   24.837994][  T212]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.838123][  T212]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   24.838252][  T212]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.838382][  T212]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.838544][  T212] RIP: 0033:0x7fa0a8f22bcb
[   24.838684][  T212] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   24.839152][  T212] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   24.839349][  T212] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   24.839544][  T212] RDX: 00000000004064a0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   24.839746][  T212] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   24.839941][  T212] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   24.840134][  T212] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   24.843943][  T212] ------------[ cut here ]------------
| [   24.844080][  T212] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/212
| [   24.844340][  T212] Modules linked in:
| [   24.844751][  T212] Tainted: [W]=WARN
[   24.844850][  T212] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.845017][  T212] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.845188][  T212] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.845663][  T212] RSP: 0018:ffa00000008f78f8 EFLAGS: 00010286
[   24.845834][  T212] RAX: 00000000ffffffa6 RBX: ff11000009696ac0 RCX: 1ff400000011eee5
[   24.846030][  T212] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009696b7c
[   24.846227][  T212] RBP: ff11000010bd1000 R08: 1fe22000012d2d71 R09: ff110000100a2e80
[   24.846423][  T212] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   24.846623][  T212] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000010bd1000
[   24.846826][  T212] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   24.847056][  T212] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.847221][  T212] CR2: 00007fa0a8f22bc0 CR3: 000000001099d006 CR4: 0000000000771ef0
[   24.847419][  T212] PKRU: 55555554
[   24.847518][  T212] Call Trace:
[   24.847619][  T212]  <TASK>
[   24.847687][  T212]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.847826][  T212]  ? notifier_call_chain (kernel/notifier.c:85)
[   24.847960][  T212]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.848060][  T212]  register_netdevice (net/core/dev.c:11488)
[   24.848194][  T212]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   24.848357][  T212]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   24.848491][  T212]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   24.848626][  T212]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   24.848763][  T212]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   24.848898][  T212]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   24.849030][  T212]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   24.849162][  T212]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   24.849295][  T212]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   24.849430][  T212]  vti_init_net (net/ipv4/ip_vti.c:517)
[   24.849562][  T212]  ops_init (net/core/net_namespace.c:137)
[   24.849666][  T212]  setup_net (net/core/net_namespace.c:446)
[   24.849771][  T212]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   24.849903][  T212]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   24.850035][  T212]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   24.850169][  T212]  copy_net_ns (net/core/net_namespace.c:579)
[   24.850302][  T212]  create_new_namespaces (kernel/nsproxy.c:132)
[   24.850438][  T212]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   24.850573][  T212]  ksys_unshare (kernel/fork.c:3243)
[   24.850708][  T212]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.850845][  T212]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   24.850975][  T212]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.851107][  T212]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   24.851241][  T212]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.851374][  T212]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   24.851505][  T212]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   24.851641][  T212]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.851778][  T212]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   24.851911][  T212]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.852043][  T212]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.852206][  T212] RIP: 0033:0x7fa0a8f22bcb
[   24.852342][  T212] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   24.852816][  T212] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   24.853017][  T212] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   24.853214][  T212] RDX: 00000000004064a0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   24.853411][  T212] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   24.853607][  T212] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   24.853813][  T212] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   24.863262][  T212] ------------[ cut here ]------------
| [   24.863398][  T212] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/212
| [   24.863658][  T212] Modules linked in:
| [   24.864060][  T212] Tainted: [W]=WARN
[   24.864158][  T212] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.864321][  T212] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.864491][  T212] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.864962][  T212] RSP: 0018:ffa00000008f7a78 EFLAGS: 00010286
[   24.865127][  T212] RAX: 00000000ffffffa6 RBX: ff1100000e4afc40 RCX: 1ff400000011ef15
[   24.865323][  T212] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e4afcfc
[   24.865520][  T212] RBP: ff11000010a29000 R08: 1fe2200001c95fa1 R09: ff110000100a2e80
[   24.865718][  T212] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   24.865920][  T212] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000010a29000
[   24.866118][  T212] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   24.866353][  T212] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.866521][  T212] CR2: 00007fa0a8f22bc0 CR3: 000000001099d006 CR4: 0000000000771ef0
[   24.866724][  T212] PKRU: 55555554
[   24.866825][  T212] Call Trace:
[   24.866923][  T212]  <TASK>
[   24.866991][  T212]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.867123][  T212]  ? notifier_call_chain (kernel/notifier.c:85)
[   24.867255][  T212]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.867354][  T212]  register_netdevice (net/core/dev.c:11488)
[   24.867487][  T212]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   24.867657][  T212]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.867794][  T212]  register_netdev (net/core/dev.c:11552)
[   24.867924][  T212]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   24.868058][  T212]  ops_init (net/core/net_namespace.c:137)
[   24.868159][  T212]  setup_net (net/core/net_namespace.c:446)
[   24.868258][  T212]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   24.868387][  T212]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   24.868519][  T212]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   24.868659][  T212]  copy_net_ns (net/core/net_namespace.c:579)
[   24.868797][  T212]  create_new_namespaces (kernel/nsproxy.c:132)
[   24.868930][  T212]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   24.869063][  T212]  ksys_unshare (kernel/fork.c:3243)
[   24.869192][  T212]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.869323][  T212]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   24.869454][  T212]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.869584][  T212]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   24.869719][  T212]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.869856][  T212]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   24.869986][  T212]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   24.870116][  T212]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.870245][  T212]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   24.870376][  T212]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.870507][  T212]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.870672][  T212] RIP: 0033:0x7fa0a8f22bcb
[   24.870811][  T212] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   24.871275][  T212] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   24.871471][  T212] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   24.871668][  T212] RDX: 00000000004064a0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   24.871868][  T212] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   24.872063][  T212] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   24.872255][  T212] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   24.876319][  T212] ------------[ cut here ]------------
| [   24.876452][  T212] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/212
| [   24.876715][  T212] Modules linked in:
| [   24.877113][  T212] Tainted: [W]=WARN
[   24.877212][  T212] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.877373][  T212] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.877542][  T212] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.878009][  T212] RSP: 0018:ffa00000008f7a68 EFLAGS: 00010286
[   24.878173][  T212] RAX: 00000000ffffffa6 RBX: ff1100000ebb8200 RCX: 1ff400000011ef13
[   24.878367][  T212] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ebb82bc
[   24.878563][  T212] RBP: ff11000005039000 R08: 1fe2200001d77059 R09: ff110000100a2e80
[   24.878766][  T212] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   24.878964][  T212] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000005039000
[   24.879160][  T212] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   24.879387][  T212] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.879551][  T212] CR2: 00007fa0a8f22bc0 CR3: 000000001099d006 CR4: 0000000000771ef0
[   24.879757][  T212] PKRU: 55555554
[   24.879854][  T212] Call Trace:
[   24.879950][  T212]  <TASK>
[   24.880018][  T212]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.880147][  T212]  ? notifier_call_chain (kernel/notifier.c:85)
[   24.880277][  T212]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.880377][  T212]  register_netdevice (net/core/dev.c:11488)
[   24.880510][  T212]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   24.880682][  T212]  register_netdev (net/core/dev.c:11552)
[   24.880816][  T212]  sit_init_net (net/ipv6/sit.c:1860)
[   24.880950][  T212]  ops_init (net/core/net_namespace.c:137)
[   24.881049][  T212]  setup_net (net/core/net_namespace.c:446)
[   24.881149][  T212]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   24.881278][  T212]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   24.881408][  T212]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   24.881540][  T212]  copy_net_ns (net/core/net_namespace.c:579)
[   24.881677][  T212]  create_new_namespaces (kernel/nsproxy.c:132)
[   24.881813][  T212]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   24.881945][  T212]  ksys_unshare (kernel/fork.c:3243)
[   24.882075][  T212]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.882204][  T212]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   24.882332][  T212]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.882462][  T212]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   24.882594][  T212]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.882727][  T212]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   24.882861][  T212]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   24.882991][  T212]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.883121][  T212]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   24.883250][  T212]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.883382][  T212]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.883542][  T212] RIP: 0033:0x7fa0a8f22bcb
[   24.883683][  T212] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   24.884148][  T212] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   24.884344][  T212] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   24.884539][  T212] RDX: 00000000004064a0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   24.884740][  T212] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   24.884933][  T212] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   24.885127][  T212] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   24.887055][   T12] ------------[ cut here ]------------
| [   24.887216][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   24.887491][   T12] Modules linked in:
| [   24.888067][   T12] Tainted: [W]=WARN
[   24.888200][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.888468][   T12] Workqueue: netns cleanup_net
[   24.888646][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.888865][   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
[   24.889407][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   24.889603][   T12] RAX: 00000000ffffffa6 RBX: ff1100000bea1380 RCX: 1ff4000000018ed5
[   24.889921][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bea143c
[   24.890144][   T12] RBP: ff1100000fbb1000 R08: 1fe22000017d4289 R09: ff11000001aed1d0
[   24.890441][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   24.890669][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   24.890912][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   24.891244][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.891438][   T12] CR2: 00007fa0a8e9a0a0 CR3: 000000000b72a006 CR4: 0000000000771ef0
[   24.891664][   T12] PKRU: 55555554
[   24.891887][   T12] Call Trace:
[   24.892021][   T12]  <TASK>
[   24.892129][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   24.892331][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   24.892601][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   24.892786][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   24.892953][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   24.893120][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   24.893358][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   24.893526][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   24.893704][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   24.893880][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.894122][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   24.894290][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   24.894455][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   24.894629][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   24.894810][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.894980][   T12]  process_one_work (kernel/workqueue.c:3314)
[   24.895154][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   24.895320][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.895565][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   24.895760][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   24.895927][   T12]  kthread (kernel/kthread.c:436)
[   24.896064][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   24.896332][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.896504][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   24.896680][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   24.896888][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   24.897126][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.897293][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   24.907165][  T212] ------------[ cut here ]------------
| [   24.907306][  T212] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/212
| [   24.907566][  T212] Modules linked in:
| [   24.907976][  T212] Tainted: [W]=WARN
[   24.908076][  T212] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.908239][  T212] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.908411][  T212] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.908887][  T212] RSP: 0018:ffa00000008f7a78 EFLAGS: 00010286
[   24.909056][  T212] RAX: 00000000ffffffa6 RBX: ff1100000c07e580 RCX: 1ff400000011ef15
[   24.909250][  T212] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c07e63c
[   24.909447][  T212] RBP: ff11000005081000 R08: 1fe220000180fcc9 R09: ff110000100a2e80
[   24.909649][  T212] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   24.909847][  T212] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000005081000
[   24.910043][  T212] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   24.910272][  T212] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.910437][  T212] CR2: 00007fa0a8f22bc0 CR3: 000000001099d006 CR4: 0000000000771ef0
[   24.910640][  T212] PKRU: 55555554
[   24.910743][  T212] Call Trace:
[   24.910842][  T212]  <TASK>
[   24.910910][  T212]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.911041][  T212]  ? notifier_call_chain (kernel/notifier.c:85)
[   24.911172][  T212]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.911272][  T212]  register_netdevice (net/core/dev.c:11488)
[   24.911407][  T212]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   24.911571][  T212]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.911709][  T212]  register_netdev (net/core/dev.c:11552)
[   24.911843][  T212]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   24.911975][  T212]  ops_init (net/core/net_namespace.c:137)
[   24.912075][  T212]  setup_net (net/core/net_namespace.c:446)
[   24.912174][  T212]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   24.912305][  T212]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   24.912436][  T212]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   24.912569][  T212]  copy_net_ns (net/core/net_namespace.c:579)
[   24.912704][  T212]  create_new_namespaces (kernel/nsproxy.c:132)
[   24.912844][  T212]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   24.912975][  T212]  ksys_unshare (kernel/fork.c:3243)
[   24.913105][  T212]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.913236][  T212]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   24.913366][  T212]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.913496][  T212]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   24.913633][  T212]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.913770][  T212]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   24.913900][  T212]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   24.914030][  T212]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.914159][  T212]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   24.914290][  T212]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.914421][  T212]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.914582][  T212] RIP: 0033:0x7fa0a8f22bcb
[   24.914722][  T212] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   24.915194][  T212] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   24.915390][  T212] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   24.915586][  T212] RDX: 00000000004064a0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   24.915788][  T212] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   24.915984][  T212] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   24.916180][  T212] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   24.939544][  T214] ------------[ cut here ]------------
| [   24.939698][  T214] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/214
| [   24.940045][  T214] Modules linked in:
| [   24.940446][  T214] Tainted: [W]=WARN
[   24.940547][  T214] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.940716][  T214] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.940892][  T214] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.941361][  T214] RSP: 0018:ffa0000000917a80 EFLAGS: 00010286
[   24.941527][  T214] RAX: 00000000ffffffa6 RBX: ff1100000bc598c0 RCX: 1ff4000000122f16
[   24.941726][  T214] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bc5997c
[   24.941926][  T214] RBP: ff11000011c44000 R08: 1fe220000178b331 R09: ff11000010025180
[   24.942123][  T214] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   24.942319][  T214] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000011c44000
[   24.942518][  T214] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   24.942759][  T214] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.942928][  T214] CR2: 00007fa0a8f22bc0 CR3: 000000000e4d5001 CR4: 0000000000771ef0
[   24.943125][  T214] PKRU: 55555554
[   24.943223][  T214] Call Trace:
[   24.943320][  T214]  <TASK>
[   24.943388][  T214]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.943520][  T214]  ? notifier_call_chain (kernel/notifier.c:85)
[   24.943656][  T214]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.943763][  T214]  register_netdevice (net/core/dev.c:11488)
[   24.943895][  T214]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   24.944059][  T214]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   24.944192][  T214]  register_netdev (net/core/dev.c:11552)
[   24.944323][  T214]  loopback_net_init (drivers/net/loopback.c:218)
[   24.944456][  T214]  ops_init (net/core/net_namespace.c:137)
[   24.944556][  T214]  setup_net (net/core/net_namespace.c:446)
[   24.944662][  T214]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   24.944797][  T214]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   24.944929][  T214]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   24.945061][  T214]  copy_net_ns (net/core/net_namespace.c:579)
[   24.945192][  T214]  create_new_namespaces (kernel/nsproxy.c:132)
[   24.945326][  T214]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   24.945457][  T214]  ksys_unshare (kernel/fork.c:3243)
[   24.945588][  T214]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.945723][  T214]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   24.945859][  T214]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.945990][  T214]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   24.946122][  T214]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.946254][  T214]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   24.946385][  T214]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   24.946516][  T214]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.946650][  T214]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   24.946782][  T214]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.946912][  T214]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.947074][  T214] RIP: 0033:0x7fa0a8f22bcb
[   24.947209][  T214] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   24.947682][  T214] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   24.947886][  T214] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   24.948081][  T214] RDX: 00000000004064a0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   24.948277][  T214] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   24.948473][  T214] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   24.948672][  T214] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   24.950663][   T12] ------------[ cut here ]------------
| [   24.950887][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   24.951231][   T12] Modules linked in:
| [   24.951781][   T12] Tainted: [W]=WARN
[   24.951961][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.952201][   T12] Workqueue: netns cleanup_net
[   24.952428][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.952639][   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
[   24.953115][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   24.953312][   T12] RAX: 00000000ffffffa6 RBX: ff11000009643e00 RCX: 1ff4000000018eed
[   24.953532][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009643ebc
[   24.953771][   T12] RBP: ff11000005081000 R08: 1fe22000012c87d9 R09: ff11000001aed1d0
[   24.953995][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   24.954217][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   24.954441][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   24.954695][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.954904][   T12] CR2: 00000000004090e8 CR3: 0000000044d4d003 CR4: 0000000000771ef0
[   24.955127][   T12] PKRU: 55555554
[   24.955261][   T12] Call Trace:
[   24.955395][   T12]  <TASK>
[   24.955503][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   24.955707][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   24.955921][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   24.956087][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   24.956254][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   24.956420][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   24.956588][   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)
[   24.956773][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   24.956943][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   24.957105][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.957272][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   24.957438][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   24.957600][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   24.957787][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   24.957953][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.958119][   T12]  process_one_work (kernel/workqueue.c:3314)
[   24.958288][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   24.958451][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.958627][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   24.958810][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   24.958977][   T12]  kthread (kernel/kthread.c:436)
[   24.959114][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   24.959306][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.959471][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   24.959644][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   24.959853][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   24.960019][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.960185][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   24.962763][   T12] ------------[ cut here ]------------
| [   24.962921][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   24.963195][   T12] Modules linked in:
| [   24.963648][   T12] Tainted: [W]=WARN
[   24.963841][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.964039][   T12] Workqueue: netns cleanup_net
[   24.964207][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.964405][   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
[   24.964881][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   24.965074][   T12] RAX: 00000000ffffffa6 RBX: ff11000009643540 RCX: 1ff4000000018eed
[   24.965293][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000096435fc
[   24.965513][   T12] RBP: ff11000005039000 R08: 1fe22000012c86c1 R09: ff11000001aed1d0
[   24.965752][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   24.965973][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   24.966195][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   24.966445][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.966645][   T12] CR2: 00000000004090e8 CR3: 0000000044d4d003 CR4: 0000000000771ef0
[   24.966881][   T12] PKRU: 55555554
[   24.967014][   T12] Call Trace:
[   24.967147][   T12]  <TASK>
[   24.967254][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   24.967453][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   24.967651][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   24.967829][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   24.967996][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   24.968163][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   24.968328][   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)
[   24.968493][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   24.968665][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   24.968839][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.969008][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   24.969173][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   24.969335][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   24.969503][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   24.969675][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.969855][   T12]  process_one_work (kernel/workqueue.c:3314)
[   24.970024][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   24.970188][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.970357][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   24.970526][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   24.970700][   T12]  kthread (kernel/kthread.c:436)
[   24.970846][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   24.971040][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.971206][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   24.971372][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   24.971564][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   24.971748][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.971917][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   24.974446][   T12] ------------[ cut here ]------------
| [   24.974603][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   24.975103][   T12] Modules linked in:
| [   24.975690][   T12] Tainted: [W]=WARN
[   24.975881][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.976118][   T12] Workqueue: netns cleanup_net
[   24.976335][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.976581][   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
[   24.977105][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   24.977351][   T12] RAX: 00000000ffffffa6 RBX: ff11000009642740 RCX: 1ff4000000018eed
[   24.977627][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000096427fc
[   24.977904][   T12] RBP: ff11000010a29000 R08: 1fe22000012c8501 R09: ff11000001aed1d0
[   24.978168][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   24.978430][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   24.978705][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   24.979011][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.979248][   T12] CR2: 00000000004090e8 CR3: 0000000044d4d003 CR4: 0000000000771ef0
[   24.979514][   T12] PKRU: 55555554
[   24.979696][   T12] Call Trace:
[   24.979888][   T12]  <TASK>
[   24.980046][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   24.980287][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   24.980524][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   24.980752][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   24.980963][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   24.981171][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   24.981380][   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)
[   24.981591][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   24.981826][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   24.982033][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.982292][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   24.982546][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   24.982835][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   24.983095][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   24.983349][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.983610][   T12]  process_one_work (kernel/workqueue.c:3314)
[   24.983891][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   24.984144][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.984367][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   24.984586][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   24.984764][   T12]  kthread (kernel/kthread.c:436)
[   24.984900][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   24.985092][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.985259][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   24.985426][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   24.985626][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   24.985803][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.985970][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   24.988326][   T12] ------------[ cut here ]------------
| [   24.988482][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   24.989184][   T12] Modules linked in:
| [   24.989750][   T12] Tainted: [W]=WARN
[   24.989928][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.990166][   T12] Workqueue: netns cleanup_net
[   24.990379][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.990632][   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
[   24.991152][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   24.991389][   T12] RAX: 00000000ffffffa6 RBX: ff110000096423c0 RCX: 1ff4000000018eed
[   24.991660][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000964247c
[   24.991942][   T12] RBP: ff11000010bd1000 R08: 1fe22000012c8491 R09: ff11000001aed1d0
[   24.992207][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   24.992469][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   24.992752][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   24.993048][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.993285][   T12] CR2: 00000000004090e8 CR3: 0000000044d4d003 CR4: 0000000000771ef0
[   24.993547][   T12] PKRU: 55555554
[   24.993730][   T12] Call Trace:
[   24.994048][   T12]  <TASK>
[   24.994196][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   24.994393][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   24.994586][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   24.994771][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   24.994936][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   24.995099][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   24.995265][   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)
[   24.995430][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   24.995595][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   24.995779][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.995949][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   24.996113][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   24.996275][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   24.996440][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   24.996602][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.996785][   T12]  process_one_work (kernel/workqueue.c:3314)
[   24.996954][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   24.997116][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.997289][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   24.997456][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   24.997625][   T12]  kthread (kernel/kthread.c:436)
[   24.997772][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   24.997964][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.998127][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   24.998291][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   24.998485][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   24.998656][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.998835][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   25.001194][   T12] ------------[ cut here ]------------
| [   25.001318][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   25.001546][   T12] Modules linked in:
| [   25.001921][   T12] Tainted: [W]=WARN
[   25.002013][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   25.002159][   T12] Workqueue: netns cleanup_net
[   25.002280][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   25.002433][   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
[   25.002862][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   25.003009][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c07fe00 RCX: 1ff4000000018eed
[   25.003183][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c07febc
[   25.003357][   T12] RBP: ff1100000f144000 R08: 1fe220000180ffd9 R09: ff11000001aed1d0
[   25.003529][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   25.003708][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   25.003889][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   25.004095][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.004242][   T12] CR2: 00007fa0a8e9a0a0 CR3: 000000000b780003 CR4: 0000000000771ef0
[   25.004420][   T12] PKRU: 55555554
[   25.004507][   T12] Call Trace:
[   25.004595][   T12]  <TASK>
[   25.004661][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   25.004816][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   25.004964][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   25.005083][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   25.005201][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   25.005321][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   25.005439][   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)
[   25.005558][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   25.005680][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   25.005801][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   25.005920][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   25.006038][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   25.006155][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   25.006276][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   25.006394][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   25.006513][   T12]  process_one_work (kernel/workqueue.c:3314)
[   25.006636][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   25.006759][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   25.006881][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   25.007002][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   25.007122][   T12]  kthread (kernel/kthread.c:436)
[   25.007211][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   25.007356][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   25.007476][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   25.007594][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   25.007747][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   25.007865][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   25.007984][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   25.013638][  T214] ------------[ cut here ]------------
| [   25.013782][  T214] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/214
| [   25.014045][  T214] Modules linked in:
| [   25.014436][  T214] Tainted: [W]=WARN
[   25.014533][  T214] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   25.014699][  T214] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   25.014874][  T214] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   25.015332][  T214] RSP: 0018:ffa0000000917918 EFLAGS: 00010286
[   25.015495][  T214] RAX: 00000000ffffffa6 RBX: ff1100000ab2b540 RCX: 1ff4000000122ee9
[   25.015692][  T214] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ab2b5fc
[   25.015892][  T214] RBP: ff11000005049000 R08: 1fe22000015656c1 R09: ff11000010025180
[   25.016085][  T214] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   25.016277][  T214] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000005049000
[   25.016472][  T214] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   25.016705][  T214] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.016873][  T214] CR2: 00007fa0a8f22bc0 CR3: 000000000e4d5001 CR4: 0000000000771ef0
[   25.017067][  T214] PKRU: 55555554
[   25.017163][  T214] Call Trace:
[   25.017260][  T214]  <TASK>
[   25.017327][  T214]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   25.017458][  T214]  ? notifier_call_chain (kernel/notifier.c:85)
[   25.017588][  T214]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   25.017691][  T214]  register_netdevice (net/core/dev.c:11488)
[   25.017829][  T214]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   25.017991][  T214]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   25.018122][  T214]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   25.018252][  T214]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   25.018383][  T214]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   25.018515][  T214]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   25.018650][  T214]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   25.018785][  T214]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   25.018917][  T214]  ops_init (net/core/net_namespace.c:137)
[   25.019017][  T214]  setup_net (net/core/net_namespace.c:446)
[   25.019116][  T214]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   25.019245][  T214]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   25.019377][  T214]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   25.019508][  T214]  copy_net_ns (net/core/net_namespace.c:579)
[   25.019643][  T214]  create_new_namespaces (kernel/nsproxy.c:132)
[   25.019781][  T214]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   25.019913][  T214]  ksys_unshare (kernel/fork.c:3243)
[   25.020042][  T214]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   25.020170][  T214]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   25.020301][  T214]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   25.020431][  T214]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   25.020560][  T214]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   25.020694][  T214]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   25.020829][  T214]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   25.020959][  T214]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   25.021088][  T214]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   25.021219][  T214]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   25.021348][  T214]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   25.021507][  T214] RIP: 0033:0x7fa0a8f22bcb
[   25.021645][  T214] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   25.022107][  T214] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   25.022303][  T214] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   25.022496][  T214] RDX: 00000000004064a0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   25.022692][  T214] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   25.022891][  T214] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   25.023085][  T214] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   25.026867][  T214] ------------[ cut here ]------------
| [   25.027006][  T214] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/214
| [   25.027263][  T214] Modules linked in:
| [   25.027663][  T214] Tainted: [W]=WARN
[   25.027769][  T214] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   25.027936][  T214] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   25.028105][  T214] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   25.028577][  T214] RSP: 0018:ffa00000009178f8 EFLAGS: 00010286
[   25.028749][  T214] RAX: 00000000ffffffa6 RBX: ff1100000ab2a580 RCX: 1ff4000000122ee5
[   25.028946][  T214] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ab2a63c
[   25.029143][  T214] RBP: ff110000050d1000 R08: 1fe22000015654c9 R09: ff11000010025180
[   25.029339][  T214] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   25.029536][  T214] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000050d1000
[   25.029744][  T214] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   25.029976][  T214] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.030142][  T214] CR2: 00007fa0a8f22bc0 CR3: 000000000e4d5001 CR4: 0000000000771ef0
[   25.030341][  T214] PKRU: 55555554
[   25.030441][  T214] Call Trace:
[   25.030541][  T214]  <TASK>
[   25.030609][  T214]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   25.030796][  T214]  ? notifier_call_chain (kernel/notifier.c:85)
[   25.030933][  T214]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   25.031034][  T214]  register_netdevice (net/core/dev.c:11488)
[   25.031168][  T214]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   25.031334][  T214]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   25.031469][  T214]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   25.031602][  T214]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   25.031860][  T214]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   25.031992][  T214]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   25.032125][  T214]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   25.032259][  T214]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   25.032392][  T214]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   25.032527][  T214]  vti_init_net (net/ipv4/ip_vti.c:517)
[   25.032664][  T214]  ops_init (net/core/net_namespace.c:137)
[   25.032771][  T214]  setup_net (net/core/net_namespace.c:446)
[   25.032872][  T214]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   25.033004][  T214]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   25.033141][  T214]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   25.033276][  T214]  copy_net_ns (net/core/net_namespace.c:579)
[   25.033410][  T214]  create_new_namespaces (kernel/nsproxy.c:132)
[   25.033547][  T214]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   25.033686][  T214]  ksys_unshare (kernel/fork.c:3243)
[   25.033823][  T214]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   25.033957][  T214]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   25.034089][  T214]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   25.034222][  T214]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   25.034356][  T214]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   25.034489][  T214]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   25.034626][  T214]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   25.034763][  T214]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   25.034895][  T214]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   25.035029][  T214]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   25.035162][  T214]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   25.035324][  T214] RIP: 0033:0x7fa0a8f22bcb
[   25.035461][  T214] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   25.035939][  T214] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   25.036138][  T214] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   25.036335][  T214] RDX: 00000000004064a0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   25.036533][  T214] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   25.036738][  T214] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   25.036936][  T214] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   25.041008][  T214] ------------[ cut here ]------------
| [   25.041144][  T214] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/214
| [   25.041404][  T214] Modules linked in:
| [   25.041811][  T214] Tainted: [W]=WARN
[   25.041910][  T214] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   25.042073][  T214] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   25.042242][  T214] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   25.042711][  T214] RSP: 0018:ffa0000000917a78 EFLAGS: 00010286
[   25.042881][  T214] RAX: 00000000ffffffa6 RBX: ff1100000c07f1c0 RCX: 1ff4000000122f15
[   25.043076][  T214] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c07f27c
[   25.043273][  T214] RBP: ff11000010a2c000 R08: 1fe220000180fe51 R09: ff11000010025180
[   25.043469][  T214] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   25.043666][  T214] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000010a2c000
[   25.043868][  T214] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   25.044099][  T214] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.044264][  T214] CR2: 00007fa0a8f22bc0 CR3: 000000000e4d5001 CR4: 0000000000771ef0
[   25.044463][  T214] PKRU: 55555554
[   25.044561][  T214] Call Trace:
[   25.044664][  T214]  <TASK>
[   25.044736][  T214]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   25.044868][  T214]  ? notifier_call_chain (kernel/notifier.c:85)
[   25.045001][  T214]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   25.045103][  T214]  register_netdevice (net/core/dev.c:11488)
[   25.045236][  T214]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   25.045398][  T214]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   25.045532][  T214]  register_netdev (net/core/dev.c:11552)
[   25.045667][  T214]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   25.045806][  T214]  ops_init (net/core/net_namespace.c:137)
[   25.045908][  T214]  setup_net (net/core/net_namespace.c:446)
[   25.046008][  T214]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   25.046141][  T214]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   25.046272][  T214]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   25.046405][  T214]  copy_net_ns (net/core/net_namespace.c:579)
[   25.046537][  T214]  create_new_namespaces (kernel/nsproxy.c:132)
[   25.046675][  T214]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   25.046812][  T214]  ksys_unshare (kernel/fork.c:3243)
[   25.046945][  T214]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   25.047076][  T214]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   25.047208][  T214]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   25.047341][  T214]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   25.047474][  T214]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   25.047607][  T214]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   25.047745][  T214]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   25.047878][  T214]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   25.048010][  T214]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   25.048142][  T214]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   25.048274][  T214]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   25.048438][  T214] RIP: 0033:0x7fa0a8f22bcb
[   25.048575][  T214] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   25.049053][  T214] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   25.049251][  T214] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   25.049446][  T214] RDX: 00000000004064a0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   25.049646][  T214] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   25.049849][  T214] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   25.050045][  T214] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   25.054276][  T214] ------------[ cut here ]------------
| [   25.054415][  T214] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/214
| [   25.054677][  T214] Modules linked in:
| [   25.055077][  T214] Tainted: [W]=WARN
[   25.055176][  T214] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   25.055344][  T214] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   25.055514][  T214] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   25.055990][  T214] RSP: 0018:ffa0000000917a68 EFLAGS: 00010286
[   25.056156][  T214] RAX: 00000000ffffffa6 RBX: ff1100000a1aa740 RCX: 1ff4000000122f13
[   25.056354][  T214] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a1aa7fc
[   25.056552][  T214] RBP: ff1100000fc6c000 R08: 1fe2200001435501 R09: ff11000010025180
[   25.056758][  T214] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   25.056956][  T214] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fc6c000
[   25.057153][  T214] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   25.057383][  T214] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.057548][  T214] CR2: 00007fa0a8f22bc0 CR3: 000000000e4d5001 CR4: 0000000000771ef0
[   25.057755][  T214] PKRU: 55555554
[   25.057854][  T214] Call Trace:
[   25.057952][  T214]  <TASK>
[   25.058020][  T214]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   25.058151][  T214]  ? notifier_call_chain (kernel/notifier.c:85)
[   25.058283][  T214]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   25.058384][  T214]  register_netdevice (net/core/dev.c:11488)
[   25.058518][  T214]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   25.058690][  T214]  register_netdev (net/core/dev.c:11552)
[   25.058831][  T214]  sit_init_net (net/ipv6/sit.c:1860)
[   25.058964][  T214]  ops_init (net/core/net_namespace.c:137)
[   25.059065][  T214]  setup_net (net/core/net_namespace.c:446)
[   25.059165][  T214]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   25.059295][  T214]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   25.059427][  T214]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   25.059562][  T214]  copy_net_ns (net/core/net_namespace.c:579)
[   25.059700][  T214]  create_new_namespaces (kernel/nsproxy.c:132)
[   25.059844][  T214]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   25.059978][  T214]  ksys_unshare (kernel/fork.c:3243)
[   25.060109][  T214]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   25.060241][  T214]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   25.060372][  T214]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   25.060504][  T214]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   25.060642][  T214]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   25.060779][  T214]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   25.060910][  T214]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   25.061040][  T214]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   25.061170][  T214]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   25.061301][  T214]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   25.061432][  T214]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   25.061594][  T214] RIP: 0033:0x7fa0a8f22bcb
[   25.061738][  T214] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   25.062207][  T214] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   25.062404][  T214] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   25.062602][  T214] RDX: 00000000004064a0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   25.062807][  T214] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   25.063002][  T214] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   25.063197][  T214] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   25.067807][  T214] ------------[ cut here ]------------
| [   25.067943][  T214] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/214
| [   25.068201][  T214] Modules linked in:
| [   25.068596][  T214] Tainted: [W]=WARN
[   25.068697][  T214] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   25.068864][  T214] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   25.069034][  T214] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   25.069498][  T214] RSP: 0018:ffa0000000917a78 EFLAGS: 00010286
[   25.069663][  T214] RAX: 00000000ffffffa6 RBX: ff1100000ab56c80 RCX: 1ff4000000122f15
[   25.069863][  T214] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ab56d3c
[   25.070057][  T214] RBP: ff1100000a909000 R08: 1fe220000156ada9 R09: ff11000010025180
[   25.070253][  T214] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   25.070446][  T214] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a909000
[   25.070646][  T214] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   25.070878][  T214] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.071044][  T214] CR2: 00007fa0a8f22bc0 CR3: 000000000e4d5001 CR4: 0000000000771ef0
[   25.071240][  T214] PKRU: 55555554
[   25.071337][  T214] Call Trace:
[   25.071434][  T214]  <TASK>
[   25.071501][  T214]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   25.071637][  T214]  ? notifier_call_chain (kernel/notifier.c:85)
[   25.071773][  T214]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   25.071873][  T214]  register_netdevice (net/core/dev.c:11488)
[   25.072005][  T214]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   25.072166][  T214]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   25.072299][  T214]  register_netdev (net/core/dev.c:11552)
[   25.072430][  T214]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   25.072561][  T214]  ops_init (net/core/net_namespace.c:137)
[   25.072665][  T214]  setup_net (net/core/net_namespace.c:446)
[   25.072771][  T214]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   25.072901][  T214]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   25.073031][  T214]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   25.073162][  T214]  copy_net_ns (net/core/net_namespace.c:579)
[   25.073295][  T214]  create_new_namespaces (kernel/nsproxy.c:132)
[   25.073427][  T214]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   25.073558][  T214]  ksys_unshare (kernel/fork.c:3243)
[   25.073705][  T214]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   25.073840][  T214]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   25.073968][  T214]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   25.074098][  T214]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   25.074230][  T214]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   25.074362][  T214]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   25.074491][  T214]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   25.074623][  T214]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   25.074759][  T214]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   25.074890][  T214]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   25.075021][  T214]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   25.075181][  T214] RIP: 0033:0x7fa0a8f22bcb
[   25.075315][  T214] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   25.075785][  T214] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   25.075984][  T214] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   25.076177][  T214] RDX: 00000000004064a0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   25.076370][  T214] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   25.076566][  T214] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   25.076767][  T214] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   25.084159][   T12] ------------[ cut here ]------------
| [   25.084294][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   25.084530][   T12] Modules linked in:
| [   25.084906][   T12] Tainted: [W]=WARN
[   25.084998][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   25.085148][   T12] Workqueue: netns cleanup_net
[   25.085271][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   25.085425][   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
[   25.085861][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   25.086016][   T12] RAX: 00000000ffffffa6 RBX: ff1100000285e580 RCX: 1ff4000000018ed5
[   25.086193][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000285e63c
[   25.086370][   T12] RBP: ff1100000f14c000 R08: 1fe220000050bcc9 R09: ff11000001aed1d0
[   25.086548][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   25.086730][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   25.086919][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   25.087128][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.087279][   T12] CR2: 00007fa0a901cb20 CR3: 00000000108d9004 CR4: 0000000000771ef0
[   25.087462][   T12] PKRU: 55555554
[   25.087553][   T12] Call Trace:
[   25.087647][   T12]  <TASK>
[   25.087710][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   25.087870][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   25.088020][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   25.088143][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   25.088264][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   25.088383][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   25.088503][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   25.088625][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   25.088749][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   25.088866][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   25.088989][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   25.089108][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   25.089225][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   25.089346][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   25.089468][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   25.089593][   T12]  process_one_work (kernel/workqueue.c:3314)
[   25.089720][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   25.089846][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   25.089970][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   25.090096][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   25.090214][   T12]  kthread (kernel/kthread.c:436)
[   25.090307][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   25.090459][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   25.090580][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   25.090707][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   25.090863][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   25.090982][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   25.091102][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   25.106726][  T216] ------------[ cut here ]------------
| [   25.106925][  T216] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/216
| [   25.107232][  T216] Modules linked in:
| [   25.107806][  T216] Tainted: [W]=WARN
[   25.107962][  T216] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   25.108172][  T216] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   25.108390][  T216] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   25.108917][  T216] RSP: 0018:ffa0000000867a80 EFLAGS: 00010286
[   25.109131][  T216] RAX: 00000000ffffffa6 RBX: ff1100000bba9c40 RCX: 1ff400000010cf16
[   25.109377][  T216] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bba9cfc
[   25.109626][  T216] RBP: ff11000005b19000 R08: 1fe22000017753a1 R09: ff11000008daae80
[   25.109880][  T216] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   25.110122][  T216] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000005b19000
[   25.110364][  T216] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   25.110652][  T216] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.110875][  T216] CR2: 00007fa0a8f22bc0 CR3: 0000000004c69001 CR4: 0000000000771ef0
[   25.111119][  T216] PKRU: 55555554
[   25.111263][  T216] Call Trace:
[   25.111407][  T216]  <TASK>
[   25.111522][  T216]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   25.111712][  T216]  ? notifier_call_chain (kernel/notifier.c:85)
[   25.111906][  T216]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   25.112056][  T216]  register_netdevice (net/core/dev.c:11488)
[   25.112236][  T216]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   25.112446][  T216]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   25.112631][  T216]  register_netdev (net/core/dev.c:11552)
[   25.112822][  T216]  loopback_net_init (drivers/net/loopback.c:218)
[   25.113006][  T216]  ops_init (net/core/net_namespace.c:137)
[   25.113154][  T216]  setup_net (net/core/net_namespace.c:446)
[   25.113301][  T216]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   25.113478][  T216]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   25.113664][  T216]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   25.113857][  T216]  copy_net_ns (net/core/net_namespace.c:579)
[   25.114038][  T216]  create_new_namespaces (kernel/nsproxy.c:132)
[   25.114222][  T216]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   25.114401][  T216]  ksys_unshare (kernel/fork.c:3243)
[   25.114577][  T216]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   25.114790][  T216]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   25.114968][  T216]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   25.115148][  T216]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   25.115327][  T216]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   25.115511][  T216]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   25.115697][  T216]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   25.115884][  T216]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   25.116064][  T216]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   25.116242][  T216]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   25.116421][  T216]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   25.116637][  T216] RIP: 0033:0x7fa0a8f22bcb
[   25.116835][  T216] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   25.117355][  T216] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   25.117599][  T216] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   25.117858][  T216] RDX: 00000000004064e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   25.118104][  T216] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   25.118346][  T216] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   25.118587][  T216] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   25.128899][  T216] ------------[ cut here ]------------
| [   25.129080][  T216] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/216
| [   25.129385][  T216] Modules linked in:
| [   25.129900][  T216] Tainted: [W]=WARN
[   25.130046][  T216] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   25.130254][  T216] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   25.130472][  T216] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   25.131001][  T216] RSP: 0018:ffa0000000867918 EFLAGS: 00010286
[   25.131212][  T216] RAX: 00000000ffffffa6 RBX: ff11000010846ac0 RCX: 1ff400000010cee9
[   25.131454][  T216] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000010846b7c
[   25.131698][  T216] RBP: ff11000008dd4000 R08: 1fe2200002108d71 R09: ff11000008daae80
[   25.131947][  T216] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   25.132191][  T216] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008dd4000
[   25.132436][  T216] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   25.132717][  T216] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.132942][  T216] CR2: 00007fa0a8f22bc0 CR3: 0000000004c69001 CR4: 0000000000771ef0
[   25.133186][  T216] PKRU: 55555554
[   25.133331][  T216] Call Trace:
[   25.133474][  T216]  <TASK>
[   25.133589][  T216]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   25.133786][  T216]  ? notifier_call_chain (kernel/notifier.c:85)
[   25.133966][  T216]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   25.134113][  T216]  register_netdevice (net/core/dev.c:11488)
[   25.134293][  T216]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   25.134502][  T216]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   25.134691][  T216]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   25.134884][  T216]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   25.135063][  T216]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   25.135244][  T216]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   25.135427][  T216]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   25.135607][  T216]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   25.135809][  T216]  ops_init (net/core/net_namespace.c:137)
[   25.135958][  T216]  setup_net (net/core/net_namespace.c:446)
[   25.136104][  T216]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   25.136280][  T216]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   25.136458][  T216]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   25.136647][  T216]  copy_net_ns (net/core/net_namespace.c:579)
[   25.136841][  T216]  create_new_namespaces (kernel/nsproxy.c:132)
[   25.137022][  T216]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   25.137202][  T216]  ksys_unshare (kernel/fork.c:3243)
[   25.137379][  T216]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   25.137560][  T216]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   25.137758][  T216]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   25.137938][  T216]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   25.138117][  T216]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   25.138296][  T216]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   25.138474][  T216]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   25.138657][  T216]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   25.138849][  T216]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   25.139031][  T216]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   25.139210][  T216]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   25.139418][  T216] RIP: 0033:0x7fa0a8f22bcb
[   25.139600][  T216] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   25.140129][  T216] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   25.140372][  T216] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   25.140612][  T216] RDX: 00000000004064e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   25.140875][  T216] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   25.141115][  T216] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   25.141358][  T216] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   25.145616][  T216] ------------[ cut here ]------------
| [   25.145808][  T216] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/216
| [   25.146115][  T216] Modules linked in:
| [   25.146608][  T216] Tainted: [W]=WARN
[   25.146775][  T216] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   25.146990][  T216] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   25.147209][  T216] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   25.147728][  T216] RSP: 0018:ffa00000008678f8 EFLAGS: 00010286
[   25.147956][  T216] RAX: 00000000ffffffa6 RBX: ff1100000c4be900 RCX: 1ff400000010cee5
[   25.148200][  T216] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c4be9bc
[   25.148443][  T216] RBP: ff1100000fa21000 R08: 1fe2200001897d39 R09: ff11000008daae80
[   25.148693][  T216] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   25.148949][  T216] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fa21000
[   25.149196][  T216] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   25.149473][  T216] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.149695][  T216] CR2: 00007fa0a8f22bc0 CR3: 0000000004c69001 CR4: 0000000000771ef0
[   25.149951][  T216] PKRU: 55555554
[   25.150095][  T216] Call Trace:
[   25.150243][  T216]  <TASK>
[   25.150358][  T216]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   25.150540][  T216]  ? notifier_call_chain (kernel/notifier.c:85)
[   25.150728][  T216]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   25.150892][  T216]  register_netdevice (net/core/dev.c:11488)
[   25.151072][  T216]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   25.151283][  T216]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   25.151467][  T216]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   25.151653][  T216]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   25.151846][  T216]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   25.152026][  T216]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   25.152209][  T216]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   25.152391][  T216]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   25.152572][  T216]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   25.152778][  T216]  vti_init_net (net/ipv4/ip_vti.c:517)
[   25.152965][  T216]  ops_init (net/core/net_namespace.c:137)
[   25.153115][  T216]  setup_net (net/core/net_namespace.c:446)
[   25.153262][  T216]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   25.153440][  T216]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   25.153629][  T216]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   25.153821][  T216]  copy_net_ns (net/core/net_namespace.c:579)
[   25.154003][  T216]  create_new_namespaces (kernel/nsproxy.c:132)
[   25.154189][  T216]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   25.154371][  T216]  ksys_unshare (kernel/fork.c:3243)
[   25.154549][  T216]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   25.154747][  T216]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   25.154926][  T216]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   25.155108][  T216]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   25.155288][  T216]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   25.155472][  T216]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   25.155658][  T216]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   25.155849][  T216]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   25.156028][  T216]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   25.156209][  T216]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   25.156390][  T216]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   25.156604][  T216] RIP: 0033:0x7fa0a8f22bcb
[   25.156810][  T216] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   25.157323][  T216] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   25.157568][  T216] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   25.157830][  T216] RDX: 00000000004064e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   25.158077][  T216] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   25.158322][  T216] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   25.158565][  T216] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   25.163176][  T216] ------------[ cut here ]------------
| [   25.163353][  T216] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/216
| [   25.163665][  T216] Modules linked in:
| [   25.164171][  T216] Tainted: [W]=WARN
[   25.164315][  T216] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   25.164524][  T216] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   25.164760][  T216] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   25.165274][  T216] RSP: 0018:ffa0000000867a78 EFLAGS: 00010286
[   25.165490][  T216] RAX: 00000000ffffffa6 RBX: ff1100000b62ee40 RCX: 1ff400000010cf15
[   25.165750][  T216] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b62eefc
[   25.165993][  T216] RBP: ff110000094f4000 R08: 1fe22000016c5de1 R09: ff11000008daae80
[   25.166237][  T216] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   25.166480][  T216] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000094f4000
[   25.166743][  T216] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   25.167021][  T216] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.167238][  T216] CR2: 00007fa0a8f22bc0 CR3: 0000000004c69001 CR4: 0000000000771ef0
[   25.167482][  T216] PKRU: 55555554
[   25.167633][  T216] Call Trace:
[   25.167792][  T216]  <TASK>
[   25.167907][  T216]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   25.168086][  T216]  ? notifier_call_chain (kernel/notifier.c:85)
[   25.168265][  T216]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   25.168417][  T216]  register_netdevice (net/core/dev.c:11488)
[   25.168598][  T216]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   25.168829][  T216]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   25.169012][  T216]  register_netdev (net/core/dev.c:11552)
[   25.169192][  T216]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   25.169372][  T216]  ops_init (net/core/net_namespace.c:137)
[   25.169520][  T216]  setup_net (net/core/net_namespace.c:446)
[   25.169679][  T216]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   25.169869][  T216]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   25.170049][  T216]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   25.170231][  T216]  copy_net_ns (net/core/net_namespace.c:579)
[   25.170412][  T216]  create_new_namespaces (kernel/nsproxy.c:132)
[   25.170593][  T216]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   25.170788][  T216]  ksys_unshare (kernel/fork.c:3243)
[   25.170970][  T216]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   25.171150][  T216]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   25.171327][  T216]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   25.171507][  T216]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   25.171696][  T216]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   25.171885][  T216]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   25.172063][  T216]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   25.172241][  T216]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   25.172423][  T216]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   25.172599][  T216]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   25.172799][  T216]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   25.173008][  T216] RIP: 0033:0x7fa0a8f22bcb
[   25.173189][  T216] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   25.173707][  T216] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   25.173961][  T216] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   25.174202][  T216] RDX: 00000000004064e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   25.174444][  T216] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   25.174695][  T216] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   25.174945][  T216] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   25.179449][  T216] ------------[ cut here ]------------
| [   25.179634][  T216] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/216
| [   25.179952][  T216] Modules linked in:
| [   25.180441][  T216] Tainted: [W]=WARN
[   25.180591][  T216] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   25.180820][  T216] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   25.181037][  T216] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   25.181542][  T216] RSP: 0018:ffa0000000867a68 EFLAGS: 00010286
[   25.181776][  T216] RAX: 00000000ffffffa6 RBX: ff1100000cfbd540 RCX: 1ff400000010cf13
[   25.182018][  T216] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cfbd5fc
[   25.182259][  T216] RBP: ff1100000fbf1000 R08: 1fe22000019f7ac1 R09: ff11000008daae80
[   25.182501][  T216] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   25.182766][  T216] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fbf1000
[   25.183007][  T216] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   25.183283][  T216] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.183493][  T216] CR2: 00007fa0a8f22bc0 CR3: 0000000004c69001 CR4: 0000000000771ef0
[   25.183755][  T216] PKRU: 55555554
[   25.183905][  T216] Call Trace:
[   25.184049][  T216]  <TASK>
[   25.184164][  T216]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   25.184344][  T216]  ? notifier_call_chain (kernel/notifier.c:85)
[   25.184522][  T216]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   25.184679][  T216]  register_netdevice (net/core/dev.c:11488)
[   25.184875][  T216]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   25.185089][  T216]  register_netdev (net/core/dev.c:11552)
[   25.185273][  T216]  sit_init_net (net/ipv6/sit.c:1860)
[   25.185453][  T216]  ops_init (net/core/net_namespace.c:137)
[   25.185600][  T216]  setup_net (net/core/net_namespace.c:446)
[   25.185769][  T216]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   25.185947][  T216]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   25.186126][  T216]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   25.186307][  T216]  copy_net_ns (net/core/net_namespace.c:579)
[   25.186490][  T216]  create_new_namespaces (kernel/nsproxy.c:132)
[   25.186677][  T216]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   25.186869][  T216]  ksys_unshare (kernel/fork.c:3243)
[   25.187048][  T216]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   25.187226][  T216]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   25.187402][  T216]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   25.187581][  T216]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   25.187782][  T216]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   25.187964][  T216]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   25.188142][  T216]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   25.188319][  T216]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   25.188498][  T216]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   25.188682][  T216]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   25.188875][  T216]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   25.189085][  T216] RIP: 0033:0x7fa0a8f22bcb
[   25.189272][  T216] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   25.189797][  T216] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   25.190041][  T216] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   25.190286][  T216] RDX: 00000000004064e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   25.190527][  T216] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   25.190786][  T216] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   25.191028][  T216] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   25.196152][  T216] ------------[ cut here ]------------
| [   25.196327][  T216] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/216
| [   25.196645][  T216] Modules linked in:
| [   25.197147][  T216] Tainted: [W]=WARN
[   25.197292][  T216] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   25.197499][  T216] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   25.197725][  T216] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   25.198244][  T216] RSP: 0018:ffa0000000867a78 EFLAGS: 00010286
[   25.198456][  T216] RAX: 00000000ffffffa6 RBX: ff1100000ab74c80 RCX: 1ff400000010cf15
[   25.198706][  T216] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ab74d3c
[   25.198962][  T216] RBP: ff1100000f1e4000 R08: 1fe220000156e9a9 R09: ff11000008daae80
[   25.199202][  T216] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   25.199440][  T216] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f1e4000
[   25.199692][  T216] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   25.199978][  T216] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.200189][  T216] CR2: 00007fa0a8f22bc0 CR3: 0000000004c69001 CR4: 0000000000771ef0
[   25.200432][  T216] PKRU: 55555554
[   25.200576][  T216] Call Trace:
[   25.200730][  T216]  <TASK>
[   25.200857][  T216]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   25.201038][  T216]  ? notifier_call_chain (kernel/notifier.c:85)
[   25.201215][  T216]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   25.201365][  T216]  register_netdevice (net/core/dev.c:11488)
[   25.201543][  T216]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   25.201769][  T216]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   25.201950][  T216]  register_netdev (net/core/dev.c:11552)
[   25.202130][  T216]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   25.202308][  T216]  ops_init (net/core/net_namespace.c:137)
[   25.202455][  T216]  setup_net (net/core/net_namespace.c:446)
[   25.202603][  T216]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   25.202806][  T216]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   25.202985][  T216]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   25.203163][  T216]  copy_net_ns (net/core/net_namespace.c:579)
[   25.203344][  T216]  create_new_namespaces (kernel/nsproxy.c:132)
[   25.203524][  T216]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   25.203710][  T216]  ksys_unshare (kernel/fork.c:3243)
[   25.203905][  T216]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   25.204083][  T216]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   25.204257][  T216]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   25.204434][  T216]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   25.204614][  T216]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   25.204813][  T216]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   25.204988][  T216]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   25.205167][  T216]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   25.205343][  T216]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   25.205518][  T216]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   25.205707][  T216]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   25.205930][  T216] RIP: 0033:0x7fa0a8f22bcb
[   25.206111][  T216] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   25.206624][  T216] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   25.206877][  T216] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   25.207115][  T216] RDX: 00000000004064e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   25.207352][  T216] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   25.207594][  T216] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   25.207858][  T216] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   25.213059][   T12] ------------[ cut here ]------------
| [   25.213190][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   25.213419][   T12] Modules linked in:
| [   25.213785][   T12] Tainted: [W]=WARN
[   25.213873][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   25.214018][   T12] Workqueue: netns cleanup_net
[   25.214140][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   25.214292][   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
[   25.214722][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   25.214877][   T12] RAX: 00000000ffffffa6 RBX: ff1100000bab0c80 RCX: 1ff4000000018eed
[   25.215050][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bab0d3c
[   25.215223][   T12] RBP: ff1100000a909000 R08: 1fe22000017561a9 R09: ff11000001aed1d0
[   25.215400][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   25.215576][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   25.215758][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   25.215963][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.216110][   T12] CR2: 00007fa0a901cb20 CR3: 00000000108eb001 CR4: 0000000000771ef0
[   25.216285][   T12] PKRU: 55555554
[   25.216372][   T12] Call Trace:
[   25.216459][   T12]  <TASK>
[   25.216519][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   25.216675][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   25.216825][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   25.216941][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   25.217063][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   25.217178][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   25.217301][   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)
[   25.217419][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   25.217538][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   25.217657][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   25.217780][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   25.217899][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   25.218012][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   25.218129][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   25.218245][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   25.218361][   T12]  process_one_work (kernel/workqueue.c:3314)
[   25.218480][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   25.218597][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   25.218723][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   25.218848][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   25.218963][   T12]  kthread (kernel/kthread.c:436)
[   25.219053][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   25.219196][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   25.219311][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   25.219429][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   25.219577][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   25.219698][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   25.219821][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   25.221937][   T12] ------------[ cut here ]------------
| [   25.222054][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   25.222277][   T12] Modules linked in:
| [   25.222625][   T12] Tainted: [W]=WARN
[   25.222714][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   25.222863][   T12] Workqueue: netns cleanup_net
[   25.222982][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   25.223145][   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
[   25.223553][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   25.223701][   T12] RAX: 00000000ffffffa6 RBX: ff1100000bab1380 RCX: 1ff4000000018eed
[   25.223879][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bab143c
[   25.224050][   T12] RBP: ff1100000fc6c000 R08: 1fe2200001756289 R09: ff11000001aed1d0
[   25.224227][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   25.224399][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   25.224572][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   25.224787][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.224932][   T12] CR2: 00007fa0a901cb20 CR3: 00000000108eb001 CR4: 0000000000771ef0
[   25.225108][   T12] PKRU: 55555554
[   25.225193][   T12] Call Trace:
[   25.225280][   T12]  <TASK>
[   25.225340][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   25.225486][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   25.225633][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   25.225755][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   25.225871][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   25.225985][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   25.226103][   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)
[   25.226219][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   25.226335][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   25.226449][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   25.226568][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   25.226686][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   25.226804][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   25.226922][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   25.227035][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   25.227151][   T12]  process_one_work (kernel/workqueue.c:3314)
[   25.227276][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   25.227390][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   25.227511][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   25.227633][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   25.227758][   T12]  kthread (kernel/kthread.c:436)
[   25.227848][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   25.227989][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   25.228106][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   25.228222][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   25.228366][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   25.228480][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   25.228594][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   25.236283][   T12] ------------[ cut here ]------------
| [   25.236407][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   25.236640][   T12] Modules linked in:
| [   25.236999][   T12] Tainted: [W]=WARN
[   25.237086][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   25.237237][   T12] Workqueue: netns cleanup_net
[   25.237356][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   25.237520][   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
[   25.238008][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   25.238155][   T12] RAX: 00000000ffffffa6 RBX: ff1100000bab1a80 RCX: 1ff4000000018eed
[   25.238332][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bab1b3c
[   25.238504][   T12] RBP: ff11000010a2c000 R08: 1fe2200001756369 R09: ff11000001aed1d0
[   25.238682][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   25.238938][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   25.239117][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   25.239336][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.239480][   T12] CR2: 00007fa0a901cb20 CR3: 00000000108eb001 CR4: 0000000000771ef0
[   25.239659][   T12] PKRU: 55555554
[   25.239788][   T12] Call Trace:
[   25.239875][   T12]  <TASK>
[   25.239936][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   25.240129][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   25.240274][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   25.240392][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   25.240513][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   25.240633][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   25.240799][   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)
[   25.240917][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   25.241041][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   25.241156][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   25.241285][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   25.241405][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   25.241526][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   25.241647][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   25.241810][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   25.241926][   T12]  process_one_work (kernel/workqueue.c:3314)
[   25.242047][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   25.242163][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   25.242285][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   25.242406][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   25.242523][   T12]  kthread (kernel/kthread.c:436)
[   25.242611][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   25.242803][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   25.242919][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   25.243036][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   25.243183][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   25.243300][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   25.243417][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   25.251286][   T12] ------------[ cut here ]------------
| [   25.251419][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   25.251653][   T12] Modules linked in:
| [   25.252020][   T12] Tainted: [W]=WARN
[   25.252107][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   25.252254][   T12] Workqueue: netns cleanup_net
[   25.252374][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   25.252528][   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
[   25.252953][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   25.253102][   T12] RAX: 00000000ffffffa6 RBX: ff1100000285e200 RCX: 1ff4000000018eed
[   25.253275][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000285e2bc
[   25.253447][   T12] RBP: ff110000050d1000 R08: 1fe220000050bc59 R09: ff11000001aed1d0
[   25.253624][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   25.253816][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   25.253999][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   25.254204][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.254359][   T12] CR2: 00007fa0a901cb20 CR3: 0000000004c69005 CR4: 0000000000771ef0
[   25.254544][   T12] PKRU: 55555554
[   25.254637][   T12] Call Trace:
[   25.254724][   T12]  <TASK>
[   25.254795][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   25.254943][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   25.255087][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   25.255202][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   25.255320][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   25.255437][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   25.255559][   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)
[   25.255680][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   25.255805][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   25.255919][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   25.256041][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   25.256160][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   25.256279][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   25.256398][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   25.256513][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   25.256633][   T12]  process_one_work (kernel/workqueue.c:3314)
[   25.256760][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   25.256876][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   25.256997][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   25.257117][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   25.257236][   T12]  kthread (kernel/kthread.c:436)
[   25.257323][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   25.257466][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   25.257581][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   25.257701][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   25.257854][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   25.257973][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   25.258088][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   25.260001][   T12] ------------[ cut here ]------------
| [   25.260116][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   25.260343][   T12] Modules linked in:
| [   25.260701][   T12] Tainted: [W]=WARN
[   25.261518][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   25.261667][   T12] Workqueue: netns cleanup_net
[   25.261797][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   25.261947][   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
[   25.262374][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   25.262520][   T12] RAX: 00000000ffffffa6 RBX: ff1100000a88de00 RCX: 1ff4000000018eed
[   25.262697][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a88debc
[   25.262875][   T12] RBP: ff11000005049000 R08: 1fe2200001511bd9 R09: ff11000001aed1d0
[   25.263049][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   25.263221][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   25.263396][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   25.263604][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.263763][   T12] CR2: 00007fa0a901cb20 CR3: 0000000004c69005 CR4: 0000000000771ef0
[   25.263941][   T12] PKRU: 55555554
[   25.264028][   T12] Call Trace:
[   25.264114][   T12]  <TASK>
[   25.264174][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   25.264323][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   25.264466][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   25.264586][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   25.264708][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   25.264830][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   25.264945][   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)
[   25.265064][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   25.265183][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   25.265297][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   25.265420][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   25.265538][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   25.265656][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   25.265779][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   25.265893][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   25.266010][   T12]  process_one_work (kernel/workqueue.c:3314)
[   25.266130][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   25.266246][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   25.266367][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   25.266486][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   25.266602][   T12]  kthread (kernel/kthread.c:436)
[   25.266693][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   25.266847][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   25.266961][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   25.267077][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   25.267220][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   25.267335][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   25.267455][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   25.285410][   T12] ------------[ cut here ]------------
| [   25.285539][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   25.286201][   T12] Modules linked in:
| [   25.286562][   T12] Tainted: [W]=WARN
[   25.286656][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   25.286851][   T12] Workqueue: netns cleanup_net
[   25.286974][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   25.287126][   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
[   25.287593][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   25.287793][   T12] RAX: 00000000ffffffa6 RBX: ff1100000a88d700 RCX: 1ff4000000018ed5
[   25.287970][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a88d7bc
[   25.288144][   T12] RBP: ff11000011c44000 R08: 1fe2200001511af9 R09: ff11000001aed1d0
[   25.288319][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   25.288495][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   25.288676][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   25.288942][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.289090][   T12] CR2: 00007fa0a901cb20 CR3: 0000000004c69005 CR4: 0000000000771ef0
[   25.289268][   T12] PKRU: 55555554
[   25.289354][   T12] Call Trace:
[   25.289441][   T12]  <TASK>
[   25.289502][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   25.289662][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   25.289861][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   25.289983][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   25.290105][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   25.290223][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   25.290346][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   25.290467][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   25.290591][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   25.290717][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   25.290890][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   25.291010][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   25.291126][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   25.291247][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   25.291363][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   25.291483][   T12]  process_one_work (kernel/workqueue.c:3314)
[   25.291603][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   25.291725][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   25.291883][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   25.292005][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   25.292123][   T12]  kthread (kernel/kthread.c:436)
[   25.292213][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   25.292360][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   25.292478][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   25.292597][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   25.292751][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   25.292870][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   25.292990][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   26.220410][   T12] ------------[ cut here ]------------
| [   26.220575][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   26.220828][   T12] Modules linked in:
| [   26.221196][   T12] Tainted: [W]=WARN
[   26.221285][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.221434][   T12] Workqueue: netns cleanup_net
[   26.221560][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   26.221720][   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
[   26.222156][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   26.222305][   T12] RAX: 00000000ffffffa6 RBX: ff1100000e441540 RCX: 1ff4000000018eed
[   26.222481][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e4415fc
[   26.222663][   T12] RBP: ff1100000f1e4000 R08: 1fe2200001c882c1 R09: ff11000001aed1d0
[   26.222852][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   26.223028][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   26.223210][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   26.223416][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.223567][   T12] CR2: 00007fa0a901cb20 CR3: 00000000108eb001 CR4: 0000000000771ef0
[   26.223754][   T12] PKRU: 55555554
[   26.223849][   T12] Call Trace:
[   26.223938][   T12]  <TASK>
[   26.224001][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   26.224152][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   26.224307][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   26.224426][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   26.224549][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   26.224672][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   26.224797][   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)
[   26.224915][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   26.225035][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   26.225151][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   26.225276][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   26.225391][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   26.225508][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   26.225628][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   26.225746][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   26.225865][   T12]  process_one_work (kernel/workqueue.c:3314)
[   26.225986][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   26.226101][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   26.226223][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   26.226343][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   26.226460][   T12]  kthread (kernel/kthread.c:436)
[   26.226554][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.226703][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   26.226825][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   26.226963][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   26.227118][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   26.227239][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   26.227356][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   26.229861][   T12] ------------[ cut here ]------------
| [   26.229983][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   26.230221][   T12] Modules linked in:
| [   26.230590][   T12] Tainted: [W]=WARN
[   26.230719][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.230888][   T12] Workqueue: netns cleanup_net
[   26.231031][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   26.231192][   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
[   26.231631][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   26.232196][   T12] RAX: 00000000ffffffa6 RBX: ff11000005e7c040 RCX: 1ff4000000018eed
[   26.232377][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000005e7c0fc
[   26.232585][   T12] RBP: ff1100000fbf1000 R08: 1fe2200000bcf821 R09: ff11000001aed1d0
[   26.232775][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   26.232966][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   26.233148][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   26.233355][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.233517][   T12] CR2: 00007fa0a901cb20 CR3: 0000000044d4d006 CR4: 0000000000771ef0
[   26.233707][   T12] PKRU: 55555554
[   26.233800][   T12] Call Trace:
[   26.233887][   T12]  <TASK>
[   26.233947][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   26.234128][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   26.234290][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   26.234415][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   26.234535][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   26.234669][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   26.234799][   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)
[   26.234923][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   26.235053][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   26.235174][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   26.235300][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   26.235416][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   26.235543][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   26.235675][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   26.235796][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   26.235917][   T12]  process_one_work (kernel/workqueue.c:3314)
[   26.236046][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   26.236163][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   26.236294][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   26.236414][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   26.236540][   T12]  kthread (kernel/kthread.c:436)
[   26.236639][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.236792][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   26.236912][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   26.237032][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   26.237194][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   26.237324][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   26.237445][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   26.239655][   T12] ------------[ cut here ]------------
| [   26.239783][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   26.240023][   T12] Modules linked in:
| [   26.240383][   T12] Tainted: [W]=WARN
[   26.240472][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.240626][   T12] Workqueue: netns cleanup_net
[   26.240756][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   26.240912][   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
[   26.241330][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   26.241476][   T12] RAX: 00000000ffffffa6 RBX: ff11000005e7c740 RCX: 1ff4000000018eed
[   26.241661][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000005e7c7fc
[   26.241841][   T12] RBP: ff110000094f4000 R08: 1fe2200000bcf901 R09: ff11000001aed1d0
[   26.242020][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   26.242193][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   26.242373][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   26.242580][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.242738][   T12] CR2: 00007fa0a901cb20 CR3: 0000000044d4d006 CR4: 0000000000771ef0
[   26.242914][   T12] PKRU: 55555554
[   26.243005][   T12] Call Trace:
[   26.243092][   T12]  <TASK>
[   26.243155][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   26.243304][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   26.243448][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   26.243565][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   26.243689][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   26.243812][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   26.243930][   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)
[   26.244050][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   26.244170][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   26.244285][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   26.244404][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   26.244524][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   26.244643][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   26.244767][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   26.244883][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   26.245006][   T12]  process_one_work (kernel/workqueue.c:3314)
[   26.245129][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   26.245250][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   26.245370][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   26.245493][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   26.245609][   T12]  kthread (kernel/kthread.c:436)
[   26.245702][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.245855][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   26.245972][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   26.246090][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   26.246234][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   26.246349][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   26.246470][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   26.248430][   T12] ------------[ cut here ]------------
| [   26.248543][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   26.248775][   T12] Modules linked in:
| [   26.249207][   T12] Tainted: [W]=WARN
[   26.249295][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.249444][   T12] Workqueue: netns cleanup_net
[   26.249647][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   26.249804][   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
[   26.250296][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   26.250442][   T12] RAX: 00000000ffffffa6 RBX: ff11000005e7cac0 RCX: 1ff4000000018eed
[   26.250693][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000005e7cb7c
[   26.250871][   T12] RBP: ff1100000fa21000 R08: 1fe2200000bcf971 R09: ff11000001aed1d0
[   26.251044][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   26.251291][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   26.251465][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   26.251673][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.251895][   T12] CR2: 00007fa0a901cb20 CR3: 0000000044d4d006 CR4: 0000000000771ef0
[   26.252072][   T12] PKRU: 55555554
[   26.252161][   T12] Call Trace:
[   26.252321][   T12]  <TASK>
[   26.252381][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   26.252530][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   26.252687][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   26.252809][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   26.252925][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   26.253040][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   26.253157][   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)
[   26.253348][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   26.253470][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   26.253584][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   26.253710][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   26.253900][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   26.254020][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   26.254137][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   26.254252][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   26.254445][   T12]  process_one_work (kernel/workqueue.c:3314)
[   26.254565][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   26.254687][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   26.254811][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   26.255003][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   26.255117][   T12]  kthread (kernel/kthread.c:436)
[   26.255205][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.255351][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   26.255542][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   26.255661][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   26.255814][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   26.255932][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   26.256119][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   26.258511][   T12] ------------[ cut here ]------------
| [   26.258629][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   26.258934][   T12] Modules linked in:
| [   26.259290][   T12] Tainted: [W]=WARN
[   26.259454][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.259601][   T12] Workqueue: netns cleanup_net
[   26.259726][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   26.259884][   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
[   26.260376][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   26.260595][   T12] RAX: 00000000ffffffa6 RBX: ff11000005e7ce40 RCX: 1ff4000000018eed
[   26.260776][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000005e7cefc
[   26.260954][   T12] RBP: ff11000008dd4000 R08: 1fe2200000bcf9e1 R09: ff11000001aed1d0
[   26.261206][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   26.261382][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   26.261558][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   26.261845][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.261992][   T12] CR2: 00007fa0a901cb20 CR3: 0000000044d4d006 CR4: 0000000000771ef0
[   26.262243][   T12] PKRU: 55555554
[   26.262330][   T12] Call Trace:
[   26.262417][   T12]  <TASK>
[   26.262477][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   26.262630][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   26.262852][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   26.262967][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   26.263085][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   26.263201][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   26.263388][   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)
[   26.263506][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   26.263628][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   26.263818][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   26.263943][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   26.264059][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   26.264177][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   26.264295][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   26.264482][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   26.264599][   T12]  process_one_work (kernel/workqueue.c:3314)
[   26.264728][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   26.264917][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   26.265043][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   26.265163][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   26.265280][   T12]  kthread (kernel/kthread.c:436)
[   26.265368][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.265585][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   26.265709][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   26.265837][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   26.266054][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   26.266169][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   26.266288][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   26.280275][  T218] ------------[ cut here ]------------
| [   26.280428][  T218] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/218
| [   26.280698][  T218] Modules linked in:
| [   26.281104][  T218] Tainted: [W]=WARN
[   26.281205][  T218] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.281369][  T218] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   26.281539][  T218] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   26.282010][  T218] RSP: 0018:ffa00000008a7a80 EFLAGS: 00010286
[   26.282176][  T218] RAX: 00000000ffffffa6 RBX: ff1100000a1aac80 RCX: 1ff4000000114f16
[   26.282373][  T218] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a1aad3c
[   26.282566][  T218] RBP: ff1100000f969000 R08: 1fe22000014355a9 R09: ff1100000f2f0b80
[   26.282769][  T218] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   26.282962][  T218] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f969000
[   26.283160][  T218] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   26.283391][  T218] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.283557][  T218] CR2: 00007fa0a8f22bc0 CR3: 0000000004c69005 CR4: 0000000000771ef0
[   26.283765][  T218] PKRU: 55555554
[   26.283865][  T218] Call Trace:
[   26.283966][  T218]  <TASK>
[   26.284035][  T218]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   26.284166][  T218]  ? notifier_call_chain (kernel/notifier.c:85)
[   26.284297][  T218]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   26.284396][  T218]  register_netdevice (net/core/dev.c:11488)
[   26.284530][  T218]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   26.284698][  T218]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   26.284838][  T218]  register_netdev (net/core/dev.c:11552)
[   26.284969][  T218]  loopback_net_init (drivers/net/loopback.c:218)
[   26.285103][  T218]  ops_init (net/core/net_namespace.c:137)
[   26.285204][  T218]  setup_net (net/core/net_namespace.c:446)
[   26.285304][  T218]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   26.285434][  T218]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   26.285565][  T218]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   26.285700][  T218]  copy_net_ns (net/core/net_namespace.c:579)
[   26.285839][  T218]  create_new_namespaces (kernel/nsproxy.c:132)
[   26.285972][  T218]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   26.286105][  T218]  ksys_unshare (kernel/fork.c:3243)
[   26.286236][  T218]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   26.286367][  T218]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   26.286498][  T218]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   26.286631][  T218]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   26.286774][  T218]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   26.286910][  T218]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   26.287041][  T218]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   26.287176][  T218]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   26.287306][  T218]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   26.287436][  T218]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   26.287566][  T218]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   26.287737][  T218] RIP: 0033:0x7fa0a8f22bcb
[   26.287878][  T218] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   26.288348][  T218] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   26.288545][  T218] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   26.288749][  T218] RDX: 00000000004064e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   26.288944][  T218] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   26.289141][  T218] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   26.289337][  T218] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   26.294393][  T218] ------------[ cut here ]------------
| [   26.294528][  T218] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/218
| [   26.294793][  T218] Modules linked in:
| [   26.295191][  T218] Tainted: [W]=WARN
[   26.295291][  T218] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.295453][  T218] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   26.295623][  T218] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   26.296093][  T218] RSP: 0018:ffa00000008a7918 EFLAGS: 00010286
[   26.296258][  T218] RAX: 00000000ffffffa6 RBX: ff1100000cfbce40 RCX: 1ff4000000114ee9
[   26.296453][  T218] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cfbcefc
[   26.296649][  T218] RBP: ff110000102b4000 R08: 1fe22000019f79e1 R09: ff1100000f2f0b80
[   26.296849][  T218] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   26.297044][  T218] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000102b4000
[   26.297239][  T218] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   26.297466][  T218] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.297633][  T218] CR2: 00007fa0a8f22bc0 CR3: 0000000004c69005 CR4: 0000000000771ef0
[   26.297836][  T218] PKRU: 55555554
[   26.297933][  T218] Call Trace:
[   26.298030][  T218]  <TASK>
[   26.298098][  T218]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   26.298228][  T218]  ? notifier_call_chain (kernel/notifier.c:85)
[   26.298359][  T218]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   26.298458][  T218]  register_netdevice (net/core/dev.c:11488)
[   26.298590][  T218]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   26.298761][  T218]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   26.298892][  T218]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   26.299022][  T218]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   26.299151][  T218]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   26.299282][  T218]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   26.299414][  T218]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   26.299546][  T218]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   26.299683][  T218]  ops_init (net/core/net_namespace.c:137)
[   26.299844][  T218]  setup_net (net/core/net_namespace.c:446)
[   26.299943][  T218]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   26.300072][  T218]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   26.300202][  T218]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   26.300333][  T218]  copy_net_ns (net/core/net_namespace.c:579)
[   26.300464][  T218]  create_new_namespaces (kernel/nsproxy.c:132)
[   26.300597][  T218]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   26.300788][  T218]  ksys_unshare (kernel/fork.c:3243)
[   26.300918][  T218]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   26.301049][  T218]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   26.301179][  T218]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   26.301310][  T218]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   26.301445][  T218]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   26.301578][  T218]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   26.301714][  T218]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   26.301899][  T218]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   26.302029][  T218]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   26.302159][  T218]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   26.302290][  T218]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   26.302451][  T218] RIP: 0033:0x7fa0a8f22bcb
[   26.302586][  T218] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   26.303115][  T218] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   26.303311][  T218] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   26.303504][  T218] RDX: 00000000004064e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   26.303700][  T218] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   26.303948][  T218] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   26.304141][  T218] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   26.306671][   T12] ------------[ cut here ]------------
| [   26.306813][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   26.307051][   T12] Modules linked in:
| [   26.307435][   T12] Tainted: [W]=WARN
[   26.307525][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.307679][   T12] Workqueue: netns cleanup_net
[   26.307809][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   26.307965][   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
[   26.308392][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   26.308541][   T12] RAX: 00000000ffffffa6 RBX: ff1100000a88c900 RCX: 1ff4000000018ed5
[   26.308724][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a88c9bc
[   26.308908][   T12] RBP: ff11000005b19000 R08: 1fe2200001511939 R09: ff11000001aed1d0
[   26.309085][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   26.309268][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   26.309451][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   26.309664][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.310265][   T12] CR2: 00007fa0a901cb20 CR3: 00000000108d9004 CR4: 0000000000771ef0
[   26.310444][   T12] PKRU: 55555554
[   26.310533][   T12] Call Trace:
[   26.310624][   T12]  <TASK>
[   26.310687][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   26.310848][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   26.311000][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   26.311124][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   26.311246][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   26.311366][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   26.311488][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   26.311608][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   26.311739][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   26.311857][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   26.311981][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   26.312100][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   26.312220][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   26.312340][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   26.312463][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   26.312584][   T12]  process_one_work (kernel/workqueue.c:3314)
[   26.312716][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   26.312845][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   26.312967][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   26.313094][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   26.313212][   T12]  kthread (kernel/kthread.c:436)
[   26.313300][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.313448][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   26.313565][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   26.313688][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   26.313842][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   26.313962][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   26.314080][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   26.325189][  T218] ------------[ cut here ]------------
| [   26.325330][  T218] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/218
| [   26.325592][  T218] Modules linked in:
| [   26.326002][  T218] Tainted: [W]=WARN
[   26.326102][  T218] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.326267][  T218] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   26.326438][  T218] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   26.326912][  T218] RSP: 0018:ffa00000008a78f8 EFLAGS: 00010286
[   26.327079][  T218] RAX: 00000000ffffffa6 RBX: ff1100000ab75c40 RCX: 1ff4000000114ee5
[   26.327274][  T218] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ab75cfc
[   26.327470][  T218] RBP: ff11000008b9c000 R08: 1fe220000156eba1 R09: ff1100000f2f0b80
[   26.327671][  T218] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   26.327874][  T218] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008b9c000
[   26.328074][  T218] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   26.328303][  T218] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.328468][  T218] CR2: 00007fa0a8f22bc0 CR3: 0000000004c69005 CR4: 0000000000771ef0
[   26.328669][  T218] PKRU: 55555554
[   26.328774][  T218] Call Trace:
[   26.328873][  T218]  <TASK>
[   26.328949][  T218]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   26.329082][  T218]  ? notifier_call_chain (kernel/notifier.c:85)
[   26.329215][  T218]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   26.329315][  T218]  register_netdevice (net/core/dev.c:11488)
[   26.329448][  T218]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   26.329613][  T218]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   26.329752][  T218]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   26.329887][  T218]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   26.330019][  T218]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   26.330153][  T218]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   26.330285][  T218]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   26.330418][  T218]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   26.330551][  T218]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   26.330692][  T218]  vti_init_net (net/ipv4/ip_vti.c:517)
[   26.330831][  T218]  ops_init (net/core/net_namespace.c:137)
[   26.330935][  T218]  setup_net (net/core/net_namespace.c:446)
[   26.331035][  T218]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   26.331165][  T218]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   26.331298][  T218]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   26.331431][  T218]  copy_net_ns (net/core/net_namespace.c:579)
[   26.331564][  T218]  create_new_namespaces (kernel/nsproxy.c:132)
[   26.331702][  T218]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   26.331841][  T218]  ksys_unshare (kernel/fork.c:3243)
[   26.331974][  T218]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   26.332107][  T218]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   26.332240][  T218]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   26.332374][  T218]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   26.332509][  T218]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   26.332645][  T218]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   26.332782][  T218]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   26.332915][  T218]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   26.333046][  T218]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   26.333179][  T218]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   26.333310][  T218]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   26.333474][  T218] RIP: 0033:0x7fa0a8f22bcb
[   26.333613][  T218] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   26.334090][  T218] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   26.334288][  T218] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   26.334484][  T218] RDX: 00000000004064e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   26.334684][  T218] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   26.334887][  T218] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   26.335083][  T218] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   26.339167][  T218] ------------[ cut here ]------------
| [   26.339303][  T218] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/218
| [   26.339561][  T218] Modules linked in:
| [   26.339966][  T218] Tainted: [W]=WARN
[   26.340065][  T218] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.340228][  T218] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   26.340396][  T218] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   26.340869][  T218] RSP: 0018:ffa00000008a7a78 EFLAGS: 00010286
[   26.341031][  T218] RAX: 00000000ffffffa6 RBX: ff11000002835380 RCX: 1ff4000000114f15
[   26.341226][  T218] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000283543c
[   26.341420][  T218] RBP: ff11000006281000 R08: 1fe2200000506a89 R09: ff1100000f2f0b80
[   26.341615][  T218] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   26.341818][  T218] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000006281000
[   26.342013][  T218] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   26.342241][  T218] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.342407][  T218] CR2: 00007fa0a8f22bc0 CR3: 0000000004c69005 CR4: 0000000000771ef0
[   26.342603][  T218] PKRU: 55555554
[   26.342703][  T218] Call Trace:
[   26.342805][  T218]  <TASK>
[   26.342872][  T218]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   26.343003][  T218]  ? notifier_call_chain (kernel/notifier.c:85)
[   26.343134][  T218]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   26.343233][  T218]  register_netdevice (net/core/dev.c:11488)
[   26.343367][  T218]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   26.343529][  T218]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   26.343666][  T218]  register_netdev (net/core/dev.c:11552)
[   26.343801][  T218]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   26.343935][  T218]  ops_init (net/core/net_namespace.c:137)
[   26.344034][  T218]  setup_net (net/core/net_namespace.c:446)
[   26.344133][  T218]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   26.344264][  T218]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   26.344394][  T218]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   26.344527][  T218]  copy_net_ns (net/core/net_namespace.c:579)
[   26.344663][  T218]  create_new_namespaces (kernel/nsproxy.c:132)
[   26.344800][  T218]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   26.344932][  T218]  ksys_unshare (kernel/fork.c:3243)
[   26.345062][  T218]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   26.345194][  T218]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   26.345323][  T218]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   26.345455][  T218]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   26.345586][  T218]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   26.345723][  T218]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   26.345860][  T218]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   26.345989][  T218]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   26.346119][  T218]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   26.346250][  T218]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   26.346381][  T218]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   26.346542][  T218] RIP: 0033:0x7fa0a8f22bcb
[   26.346680][  T218] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   26.347149][  T218] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   26.347344][  T218] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   26.347537][  T218] RDX: 00000000004064e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   26.347739][  T218] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   26.347936][  T218] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   26.348128][  T218] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   26.352163][  T218] ------------[ cut here ]------------
| [   26.352300][  T218] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/218
| [   26.352555][  T218] Modules linked in:
| [   26.352958][  T218] Tainted: [W]=WARN
[   26.353055][  T218] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.353218][  T218] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   26.353387][  T218] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   26.353859][  T218] RSP: 0018:ffa00000008a7a68 EFLAGS: 00010286
[   26.354025][  T218] RAX: 00000000ffffffa6 RBX: ff11000005e7d000 RCX: 1ff4000000114f13
[   26.354218][  T218] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000005e7d0bc
[   26.354412][  T218] RBP: ff1100000f8ec000 R08: 1fe2200000bcfa19 R09: ff1100000f2f0b80
[   26.354606][  T218] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   26.354809][  T218] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f8ec000
[   26.355008][  T218] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   26.355236][  T218] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.355400][  T218] CR2: 00007fa0a8f22bc0 CR3: 0000000004c69005 CR4: 0000000000771ef0
[   26.355596][  T218] PKRU: 55555554
[   26.355698][  T218] Call Trace:
[   26.355801][  T218]  <TASK>
[   26.355869][  T218]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   26.356000][  T218]  ? notifier_call_chain (kernel/notifier.c:85)
[   26.356130][  T218]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   26.356231][  T218]  register_netdevice (net/core/dev.c:11488)
[   26.356363][  T218]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   26.356529][  T218]  register_netdev (net/core/dev.c:11552)
[   26.356664][  T218]  sit_init_net (net/ipv6/sit.c:1860)
[   26.356802][  T218]  ops_init (net/core/net_namespace.c:137)
[   26.356901][  T218]  setup_net (net/core/net_namespace.c:446)
[   26.357001][  T218]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   26.357131][  T218]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   26.357262][  T218]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   26.357394][  T218]  copy_net_ns (net/core/net_namespace.c:579)
[   26.357526][  T218]  create_new_namespaces (kernel/nsproxy.c:132)
[   26.357665][  T218]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   26.357801][  T218]  ksys_unshare (kernel/fork.c:3243)
[   26.357931][  T218]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   26.358062][  T218]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   26.358193][  T218]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   26.358325][  T218]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   26.358457][  T218]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   26.358589][  T218]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   26.358723][  T218]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   26.358859][  T218]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   26.358989][  T218]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   26.359118][  T218]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   26.359249][  T218]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   26.359412][  T218] RIP: 0033:0x7fa0a8f22bcb
[   26.359547][  T218] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   26.360021][  T218] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   26.360216][  T218] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   26.360412][  T218] RDX: 00000000004064e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   26.360606][  T218] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   26.360808][  T218] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   26.361001][  T218] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   26.367612][  T218] ------------[ cut here ]------------
| [   26.367759][  T218] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/218
| [   26.368017][  T218] Modules linked in:
| [   26.368413][  T218] Tainted: [W]=WARN
[   26.368511][  T218] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.368678][  T218] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   26.368849][  T218] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   26.369312][  T218] RSP: 0018:ffa00000008a7a78 EFLAGS: 00010286
[   26.369476][  T218] RAX: 00000000ffffffa6 RBX: ff1100000e4f8580 RCX: 1ff4000000114f15
[   26.369676][  T218] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e4f863c
[   26.369874][  T218] RBP: ff1100000fc3c000 R08: 1fe2200001c9f0c9 R09: ff1100000f2f0b80
[   26.370070][  T218] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   26.370264][  T218] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fc3c000
[   26.370459][  T218] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   26.370691][  T218] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.370861][  T218] CR2: 00007fa0a8f22bc0 CR3: 0000000004c69005 CR4: 0000000000771ef0
[   26.371058][  T218] PKRU: 55555554
[   26.371155][  T218] Call Trace:
[   26.371252][  T218]  <TASK>
[   26.371319][  T218]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   26.371451][  T218]  ? notifier_call_chain (kernel/notifier.c:85)
[   26.371582][  T218]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   26.371689][  T218]  register_netdevice (net/core/dev.c:11488)
[   26.371826][  T218]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   26.371986][  T218]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   26.372117][  T218]  register_netdev (net/core/dev.c:11552)
[   26.372247][  T218]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   26.372378][  T218]  ops_init (net/core/net_namespace.c:137)
[   26.372478][  T218]  setup_net (net/core/net_namespace.c:446)
[   26.372577][  T218]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   26.372711][  T218]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   26.372843][  T218]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   26.372975][  T218]  copy_net_ns (net/core/net_namespace.c:579)
[   26.373106][  T218]  create_new_namespaces (kernel/nsproxy.c:132)
[   26.373237][  T218]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   26.373367][  T218]  ksys_unshare (kernel/fork.c:3243)
[   26.373498][  T218]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   26.373632][  T218]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   26.374271][  T218]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   26.374401][  T218]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   26.374533][  T218]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   26.374668][  T218]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   26.374853][  T218]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   26.374982][  T218]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   26.375113][  T218]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   26.375242][  T218]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   26.375373][  T218]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   26.375533][  T218] RIP: 0033:0x7fa0a8f22bcb
[   26.375688][  T218] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   26.376209][  T218] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   26.376460][  T218] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   26.376656][  T218] RDX: 00000000004064e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   26.376904][  T218] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   26.377099][  T218] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   26.377293][  T218] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   27.389481][   T12] ------------[ cut here ]------------
| [   27.389658][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   27.389913][   T12] Modules linked in:
| [   27.390286][   T12] Tainted: [W]=WARN
[   27.390376][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.390526][   T12] Workqueue: netns cleanup_net
[   27.390659][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   27.390822][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   27.391251][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   27.391405][   T12] RAX: 00000000ffffffa6 RBX: ff1100000bc58040 RCX: 1ff4000000018eed
[   27.391579][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bc580fc
[   27.391769][   T12] RBP: ff1100000fc3c000 R08: 1fe220000178b021 R09: ff11000001aed1d0
[   27.391946][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   27.392122][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   27.392300][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   27.392520][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.392677][   T12] CR2: 00007fa0a901cb20 CR3: 00000000108d9004 CR4: 0000000000771ef0
[   27.392860][   T12] PKRU: 55555554
[   27.392948][   T12] Call Trace:
[   27.393037][   T12]  <TASK>
[   27.393099][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   27.393252][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   27.393400][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   27.393519][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   27.393642][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   27.393767][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   27.393884][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   27.394008][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   27.394127][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   27.394242][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   27.394365][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   27.394483][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   27.394599][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   27.394721][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   27.394846][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   27.394967][   T12]  process_one_work (kernel/workqueue.c:3314)
[   27.395090][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   27.395211][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   27.395335][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   27.395457][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   27.395573][   T12]  kthread (kernel/kthread.c:436)
[   27.395666][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.395821][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   27.395938][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   27.396060][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   27.396206][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   27.396326][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   27.396444][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   27.416538][   T12] ------------[ cut here ]------------
| [   27.416684][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   27.416959][   T12] Modules linked in:
| [   27.417326][   T12] Tainted: [W]=WARN
[   27.417415][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.417566][   T12] Workqueue: netns cleanup_net
[   27.417693][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   27.417854][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   27.418288][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   27.418438][   T12] RAX: 00000000ffffffa6 RBX: ff11000009697540 RCX: 1ff4000000018eed
[   27.418611][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000096975fc
[   27.418798][   T12] RBP: ff1100000f8ec000 R08: 1fe22000012d2ec1 R09: ff11000001aed1d0
[   27.418973][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   27.419151][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   27.419329][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   27.419535][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.419684][   T12] CR2: 00007fa0a901cb20 CR3: 00000000108d9004 CR4: 0000000000771ef0
[   27.419869][   T12] PKRU: 55555554
[   27.419956][   T12] Call Trace:
[   27.420044][   T12]  <TASK>
[   27.420107][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   27.420257][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   27.420402][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   27.420523][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   27.420646][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   27.420769][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   27.420889][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   27.421014][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   27.421131][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   27.421247][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   27.421370][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   27.421489][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   27.421606][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   27.421726][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   27.421853][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   27.421972][   T12]  process_one_work (kernel/workqueue.c:3314)
[   27.422093][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   27.422210][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   27.422333][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   27.422454][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   27.422575][   T12]  kthread (kernel/kthread.c:436)
[   27.422667][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.422819][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   27.422938][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   27.423061][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   27.423206][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   27.423327][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   27.423442][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   27.425618][   T12] ------------[ cut here ]------------
| [   27.425745][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   27.425971][   T12] Modules linked in:
| [   27.426328][   T12] Tainted: [W]=WARN
[   27.426419][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.426571][   T12] Workqueue: netns cleanup_net
[   27.426696][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   27.426859][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   27.427276][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   27.427423][   T12] RAX: 00000000ffffffa6 RBX: ff11000009697c40 RCX: 1ff4000000018eed
[   27.427596][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009697cfc
[   27.427779][   T12] RBP: ff11000006281000 R08: 1fe22000012d2fa1 R09: ff11000001aed1d0
[   27.427958][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   27.428131][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   27.428310][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   27.428516][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.428666][   T12] CR2: 00007fa0a901cb20 CR3: 00000000108d9004 CR4: 0000000000771ef0
[   27.428848][   T12] PKRU: 55555554
[   27.428934][   T12] Call Trace:
[   27.429020][   T12]  <TASK>
[   27.429083][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   27.429233][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   27.429378][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   27.429499][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   27.429618][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   27.429745][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   27.429862][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   27.429986][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   27.430106][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   27.430222][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   27.430343][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   27.430459][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   27.430576][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   27.430698][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   27.430821][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   27.430940][   T12]  process_one_work (kernel/workqueue.c:3314)
[   27.431061][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   27.431178][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   27.431299][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   27.431421][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   27.431538][   T12]  kthread (kernel/kthread.c:436)
[   27.431631][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.431787][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   27.431903][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   27.432019][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   27.432165][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   27.432283][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   27.432401][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   27.434606][   T12] ------------[ cut here ]------------
| [   27.434725][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   27.434959][   T12] Modules linked in:
| [   27.435316][   T12] Tainted: [W]=WARN
[   27.435403][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.435547][   T12] Workqueue: netns cleanup_net
[   27.435675][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   27.435834][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   27.436247][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   27.436393][   T12] RAX: 00000000ffffffa6 RBX: ff11000010846c80 RCX: 1ff4000000018eed
[   27.436566][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000010846d3c
[   27.436749][   T12] RBP: ff11000008b9c000 R08: 1fe2200002108da9 R09: ff11000001aed1d0
[   27.436927][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   27.437099][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   27.437278][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   27.437481][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.437634][   T12] CR2: 00007fa0a901cb20 CR3: 00000000108d9004 CR4: 0000000000771ef0
[   27.437814][   T12] PKRU: 55555554
[   27.437901][   T12] Call Trace:
[   27.437988][   T12]  <TASK>
[   27.438049][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   27.438198][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   27.438341][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   27.438458][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   27.438575][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   27.438695][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   27.438822][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   27.438941][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   27.439061][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   27.439177][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   27.439301][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   27.439418][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   27.439534][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   27.439657][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   27.439777][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   27.439897][   T12]  process_one_work (kernel/workqueue.c:3314)
[   27.440018][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   27.440135][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   27.440255][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   27.440376][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   27.440498][   T12]  kthread (kernel/kthread.c:436)
[   27.440586][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.440742][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   27.440862][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   27.440979][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   27.441124][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   27.441241][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   27.441358][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   27.443314][   T12] ------------[ cut here ]------------
| [   27.443428][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   27.443660][   T12] Modules linked in:
| [   27.444119][   T12] Tainted: [W]=WARN
[   27.444206][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.444355][   T12] Workqueue: netns cleanup_net
[   27.444475][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   27.444637][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   27.445116][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   27.445263][   T12] RAX: 00000000ffffffa6 RBX: ff11000010847000 RCX: 1ff4000000018eed
[   27.445437][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000108470bc
[   27.445613][   T12] RBP: ff110000102b4000 R08: 1fe2200002108e19 R09: ff11000001aed1d0
[   27.445845][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   27.446028][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   27.446203][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   27.446410][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.446555][   T12] CR2: 00007fa0a901cb20 CR3: 00000000108d9004 CR4: 0000000000771ef0
[   27.446783][   T12] PKRU: 55555554
[   27.446871][   T12] Call Trace:
[   27.446957][   T12]  <TASK>
[   27.447018][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   27.447168][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   27.447316][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   27.447434][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   27.447553][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   27.447677][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   27.447843][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   27.447962][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   27.448079][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   27.448196][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   27.448319][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   27.448436][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   27.448551][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   27.448675][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   27.448839][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   27.448961][   T12]  process_one_work (kernel/workqueue.c:3314)
[   27.449081][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   27.449198][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   27.449321][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   27.449440][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   27.449558][   T12]  kthread (kernel/kthread.c:436)
[   27.449652][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.449846][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   27.449965][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   27.450083][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   27.450231][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   27.450350][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   27.450468][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   27.458512][  T220] ------------[ cut here ]------------
| [   27.458667][  T220] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/220
| [   27.458934][  T220] Modules linked in:
| [   27.459336][  T220] Tainted: [W]=WARN
[   27.459437][  T220] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.459599][  T220] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   27.459780][  T220] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   27.460243][  T220] RSP: 0018:ffa0000000907a80 EFLAGS: 00010286
[   27.460411][  T220] RAX: 00000000ffffffa6 RBX: ff11000010847700 RCX: 1ff4000000120f16
[   27.460607][  T220] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000108477bc
[   27.460810][  T220] RBP: ff1100000fa5c000 R08: 1fe2200002108ef9 R09: ff1100000f2f5180
[   27.461004][  T220] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   27.461198][  T220] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fa5c000
[   27.461394][  T220] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   27.461629][  T220] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.461840][  T220] CR2: 00007fa0a8f22bc0 CR3: 0000000010a64006 CR4: 0000000000771ef0
[   27.462037][  T220] PKRU: 55555554
[   27.462137][  T220] Call Trace:
[   27.462235][  T220]  <TASK>
[   27.462303][  T220]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   27.462435][  T220]  ? notifier_call_chain (kernel/notifier.c:85)
[   27.462568][  T220]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   27.462670][  T220]  register_netdevice (net/core/dev.c:11488)
[   27.462807][  T220]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   27.462973][  T220]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   27.463105][  T220]  register_netdev (net/core/dev.c:11552)
[   27.463237][  T220]  loopback_net_init (drivers/net/loopback.c:218)
[   27.463371][  T220]  ops_init (net/core/net_namespace.c:137)
[   27.463472][  T220]  setup_net (net/core/net_namespace.c:446)
[   27.463571][  T220]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   27.463705][  T220]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   27.463841][  T220]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   27.463975][  T220]  copy_net_ns (net/core/net_namespace.c:579)
[   27.464107][  T220]  create_new_namespaces (kernel/nsproxy.c:132)
[   27.464241][  T220]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   27.464373][  T220]  ksys_unshare (kernel/fork.c:3243)
[   27.464505][  T220]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   27.464639][  T220]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   27.464776][  T220]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   27.464910][  T220]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   27.465044][  T220]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   27.465176][  T220]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   27.465307][  T220]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   27.465441][  T220]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   27.465572][  T220]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   27.465706][  T220]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   27.465843][  T220]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   27.466008][  T220] RIP: 0033:0x7fa0a8f22bcb
[   27.466147][  T220] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   27.466615][  T220] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   27.466827][  T220] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   27.467025][  T220] RDX: 00000000004064e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   27.467223][  T220] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   27.467422][  T220] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   27.467619][  T220] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   27.471857][  T220] ------------[ cut here ]------------
| [   27.471993][  T220] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/220
| [   27.472253][  T220] Modules linked in:
| [   27.472655][  T220] Tainted: [W]=WARN
[   27.472758][  T220] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.472921][  T220] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   27.473091][  T220] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   27.473553][  T220] RSP: 0018:ffa0000000907918 EFLAGS: 00010286
[   27.473722][  T220] RAX: 00000000ffffffa6 RBX: ff1100000e4fa900 RCX: 1ff4000000120ee9
[   27.473925][  T220] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e4fa9bc
[   27.474119][  T220] RBP: ff11000010234000 R08: 1fe2200001c9f539 R09: ff1100000f2f5180
[   27.474315][  T220] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   27.474510][  T220] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000010234000
[   27.474713][  T220] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   27.474944][  T220] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.475109][  T220] CR2: 00007fa0a8f22bc0 CR3: 0000000010a64006 CR4: 0000000000771ef0
[   27.475306][  T220] PKRU: 55555554
[   27.475404][  T220] Call Trace:
[   27.475502][  T220]  <TASK>
[   27.475571][  T220]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   27.475706][  T220]  ? notifier_call_chain (kernel/notifier.c:85)
[   27.475844][  T220]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   27.475946][  T220]  register_netdevice (net/core/dev.c:11488)
[   27.476079][  T220]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   27.476243][  T220]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   27.476377][  T220]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   27.476510][  T220]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   27.476646][  T220]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   27.476783][  T220]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   27.476917][  T220]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   27.477051][  T220]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   27.477184][  T220]  ops_init (net/core/net_namespace.c:137)
[   27.477286][  T220]  setup_net (net/core/net_namespace.c:446)
[   27.477385][  T220]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   27.477527][  T220]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   27.477664][  T220]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   27.477802][  T220]  copy_net_ns (net/core/net_namespace.c:579)
[   27.477934][  T220]  create_new_namespaces (kernel/nsproxy.c:132)
[   27.478067][  T220]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   27.478199][  T220]  ksys_unshare (kernel/fork.c:3243)
[   27.478331][  T220]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   27.478464][  T220]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   27.478594][  T220]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   27.478729][  T220]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   27.478867][  T220]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   27.479000][  T220]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   27.479131][  T220]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   27.479262][  T220]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   27.479393][  T220]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   27.479526][  T220]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   27.479661][  T220]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   27.479828][  T220] RIP: 0033:0x7fa0a8f22bcb
[   27.479965][  T220] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   27.480431][  T220] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   27.480633][  T220] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   27.480832][  T220] RDX: 00000000004064e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   27.481027][  T220] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   27.481222][  T220] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   27.481418][  T220] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   27.485243][  T220] ------------[ cut here ]------------
| [   27.485380][  T220] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/220
| [   27.485648][  T220] Modules linked in:
| [   27.486051][  T220] Tainted: [W]=WARN
[   27.486150][  T220] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.486315][  T220] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   27.486485][  T220] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   27.486962][  T220] RSP: 0018:ffa00000009078f8 EFLAGS: 00010286
[   27.487127][  T220] RAX: 00000000ffffffa6 RBX: ff110000029c98c0 RCX: 1ff4000000120ee5
[   27.487325][  T220] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000029c997c
[   27.487523][  T220] RBP: ff1100000f92c000 R08: 1fe2200000539331 R09: ff1100000f2f5180
[   27.487725][  T220] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   27.487929][  T220] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f92c000
[   27.488130][  T220] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   27.488359][  T220] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.488524][  T220] CR2: 00007fa0a8f22bc0 CR3: 0000000010a64006 CR4: 0000000000771ef0
[   27.488728][  T220] PKRU: 55555554
[   27.488831][  T220] Call Trace:
[   27.488930][  T220]  <TASK>
[   27.489000][  T220]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   27.489133][  T220]  ? notifier_call_chain (kernel/notifier.c:85)
[   27.489265][  T220]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   27.489367][  T220]  register_netdevice (net/core/dev.c:11488)
[   27.489501][  T220]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   27.489670][  T220]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   27.489809][  T220]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   27.489943][  T220]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   27.490075][  T220]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   27.490207][  T220]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   27.490341][  T220]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   27.490475][  T220]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   27.490608][  T220]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   27.490749][  T220]  vti_init_net (net/ipv4/ip_vti.c:517)
[   27.490884][  T220]  ops_init (net/core/net_namespace.c:137)
[   27.490989][  T220]  setup_net (net/core/net_namespace.c:446)
[   27.491090][  T220]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   27.491223][  T220]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   27.491355][  T220]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   27.491490][  T220]  copy_net_ns (net/core/net_namespace.c:579)
[   27.491628][  T220]  create_new_namespaces (kernel/nsproxy.c:132)
[   27.491770][  T220]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   27.491905][  T220]  ksys_unshare (kernel/fork.c:3243)
[   27.492039][  T220]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   27.492173][  T220]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   27.492307][  T220]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   27.492441][  T220]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   27.492575][  T220]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   27.492712][  T220]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   27.492847][  T220]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   27.492978][  T220]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   27.493110][  T220]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   27.493241][  T220]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   27.493374][  T220]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   27.493537][  T220] RIP: 0033:0x7fa0a8f22bcb
[   27.493677][  T220] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   27.494149][  T220] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   27.494350][  T220] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   27.494545][  T220] RDX: 00000000004064e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   27.494747][  T220] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   27.494944][  T220] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   27.495139][  T220] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   27.499229][  T220] ------------[ cut here ]------------
| [   27.499366][  T220] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/220
| [   27.499621][  T220] Modules linked in:
| [   27.500120][  T220] Tainted: [W]=WARN
[   27.500218][  T220] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.500470][  T220] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   27.500642][  T220] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   27.501201][  T220] RSP: 0018:ffa0000000907a78 EFLAGS: 00010286
[   27.501366][  T220] RAX: 00000000ffffffa6 RBX: ff110000029c8ac0 RCX: 1ff4000000120f15
[   27.501562][  T220] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000029c8b7c
[   27.501853][  T220] RBP: ff1100000aa7c000 R08: 1fe2200000539171 R09: ff1100000f2f5180
[   27.502049][  T220] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   27.502328][  T220] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000aa7c000
[   27.502523][  T220] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   27.502760][  T220] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.503010][  T220] CR2: 00007fa0a8f22bc0 CR3: 0000000010a64006 CR4: 0000000000771ef0
[   27.503205][  T220] PKRU: 55555554
[   27.503301][  T220] Call Trace:
[   27.503398][  T220]  <TASK>
[   27.503551][  T220]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   27.503684][  T220]  ? notifier_call_chain (kernel/notifier.c:85)
[   27.503819][  T220]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   27.503919][  T220]  register_netdevice (net/core/dev.c:11488)
[   27.504137][  T220]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   27.504301][  T220]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   27.504435][  T220]  register_netdev (net/core/dev.c:11552)
[   27.504566][  T220]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   27.504793][  T220]  ops_init (net/core/net_namespace.c:137)
[   27.504892][  T220]  setup_net (net/core/net_namespace.c:446)
[   27.504992][  T220]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   27.505124][  T220]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   27.505255][  T220]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   27.505474][  T220]  copy_net_ns (net/core/net_namespace.c:579)
[   27.505606][  T220]  create_new_namespaces (kernel/nsproxy.c:132)
[   27.505747][  T220]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   27.505879][  T220]  ksys_unshare (kernel/fork.c:3243)
[   27.506094][  T220]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   27.506225][  T220]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   27.506355][  T220]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   27.506485][  T220]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   27.506706][  T220]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   27.506841][  T220]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   27.506970][  T220]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   27.507100][  T220]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   27.507318][  T220]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   27.507447][  T220]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   27.507578][  T220]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   27.507831][  T220] RIP: 0033:0x7fa0a8f22bcb
[   27.507966][  T220] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   27.508523][  T220] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   27.508725][  T220] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   27.508926][  T220] RDX: 00000000004064e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   27.509207][  T220] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   27.509404][  T220] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   27.509691][  T220] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   27.514108][  T220] ------------[ cut here ]------------
| [   27.514248][  T220] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/220
| [   27.514588][  T220] Modules linked in:
| [   27.514993][  T220] Tainted: [W]=WARN
[   27.515179][  T220] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.515345][  T220] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   27.515513][  T220] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   27.516075][  T220] RSP: 0018:ffa0000000907a68 EFLAGS: 00010286
[   27.516243][  T220] RAX: 00000000ffffffa6 RBX: ff1100000c7fa200 RCX: 1ff4000000120f13
[   27.516525][  T220] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c7fa2bc
[   27.516725][  T220] RBP: ff1100000fa11000 R08: 1fe22000018ff459 R09: ff1100000f2f5180
[   27.517010][  T220] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   27.517204][  T220] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fa11000
[   27.517401][  T220] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   27.517723][  T220] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.517891][  T220] CR2: 00007fa0a8f22bc0 CR3: 0000000010a64006 CR4: 0000000000771ef0
[   27.518087][  T220] PKRU: 55555554
[   27.518268][  T220] Call Trace:
[   27.518366][  T220]  <TASK>
[   27.518433][  T220]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   27.518563][  T220]  ? notifier_call_chain (kernel/notifier.c:85)
[   27.518697][  T220]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   27.518802][  T220]  register_netdevice (net/core/dev.c:11488)
[   27.518935][  T220]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   27.519100][  T220]  register_netdev (net/core/dev.c:11552)
[   27.519233][  T220]  sit_init_net (net/ipv6/sit.c:1860)
[   27.519451][  T220]  ops_init (net/core/net_namespace.c:137)
[   27.519551][  T220]  setup_net (net/core/net_namespace.c:446)
[   27.519653][  T220]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   27.519788][  T220]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   27.520004][  T220]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   27.520136][  T220]  copy_net_ns (net/core/net_namespace.c:579)
[   27.520269][  T220]  create_new_namespaces (kernel/nsproxy.c:132)
[   27.520405][  T220]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   27.520621][  T220]  ksys_unshare (kernel/fork.c:3243)
[   27.520760][  T220]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   27.520891][  T220]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   27.521022][  T220]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   27.521238][  T220]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   27.521371][  T220]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   27.521505][  T220]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   27.521637][  T220]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   27.521772][  T220]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   27.521902][  T220]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   27.522030][  T220]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   27.522159][  T220]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   27.522405][  T220] RIP: 0033:0x7fa0a8f22bcb
[   27.522540][  T220] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   27.523099][  T220] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   27.523295][  T220] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   27.523489][  T220] RDX: 00000000004064e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   27.523778][  T220] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   27.523972][  T220] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   27.524250][  T220] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   27.529222][  T220] ------------[ cut here ]------------
| [   27.529359][  T220] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/220
| [   27.529622][  T220] Modules linked in:
| [   27.530121][  T220] Tainted: [W]=WARN
[   27.530218][  T220] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.530381][  T220] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   27.530644][  T220] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   27.531199][  T220] RSP: 0018:ffa0000000907a78 EFLAGS: 00010286
[   27.531365][  T220] RAX: 00000000ffffffa6 RBX: ff1100000db96200 RCX: 1ff4000000120f15
[   27.531560][  T220] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000db962bc
[   27.531769][  T220] RBP: ff1100000fa8c000 R08: 1fe2200001b72c59 R09: ff1100000f2f5180
[   27.531969][  T220] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   27.532166][  T220] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fa8c000
[   27.532453][  T220] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   27.532687][  T220] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.532862][  T220] CR2: 00007fa0a8f22bc0 CR3: 0000000010a64006 CR4: 0000000000771ef0
[   27.533151][  T220] PKRU: 55555554
[   27.533249][  T220] Call Trace:
[   27.533348][  T220]  <TASK>
[   27.533417][  T220]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   27.533638][  T220]  ? notifier_call_chain (kernel/notifier.c:85)
[   27.533775][  T220]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   27.533879][  T220]  register_netdevice (net/core/dev.c:11488)
[   27.534019][  T220]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   27.534271][  T220]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   27.534407][  T220]  register_netdev (net/core/dev.c:11552)
[   27.534540][  T220]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   27.534676][  T220]  ops_init (net/core/net_namespace.c:137)
[   27.534865][  T220]  setup_net (net/core/net_namespace.c:446)
[   27.534971][  T220]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   27.535106][  T220]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   27.535238][  T220]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   27.535374][  T220]  copy_net_ns (net/core/net_namespace.c:579)
[   27.535596][  T220]  create_new_namespaces (kernel/nsproxy.c:132)
[   27.535744][  T220]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   27.535876][  T220]  ksys_unshare (kernel/fork.c:3243)
[   27.536008][  T220]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   27.536226][  T220]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   27.536356][  T220]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   27.536489][  T220]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   27.536622][  T220]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   27.536849][  T220]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   27.536981][  T220]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   27.537114][  T220]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   27.537245][  T220]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   27.537465][  T220]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   27.537597][  T220]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   27.537771][  T220] RIP: 0033:0x7fa0a8f22bcb
[   27.537908][  T220] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   27.538467][  T220] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   27.538765][  T220] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   27.538961][  T220] RDX: 00000000004064e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   27.539159][  T220] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   27.539446][  T220] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   27.539645][  T220] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   27.541930][   T12] ------------[ cut here ]------------
| [   27.542127][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   27.542368][   T12] Modules linked in:
| [   27.542819][   T12] Tainted: [W]=WARN
[   27.542911][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.543059][   T12] Workqueue: netns cleanup_net
[   27.543184][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   27.543337][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   27.543775][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   27.543924][   T12] RAX: 00000000ffffffa6 RBX: ff1100000db97c40 RCX: 1ff4000000018ed5
[   27.544100][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000db97cfc
[   27.544278][   T12] RBP: ff1100000f969000 R08: 1fe2200001b72fa1 R09: ff11000001aed1d0
[   27.544456][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   27.544635][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   27.544818][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   27.545027][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.545175][   T12] CR2: 00007fa0a901cb20 CR3: 00000000108d9004 CR4: 0000000000771ef0
[   27.545353][   T12] PKRU: 55555554
[   27.545441][   T12] Call Trace:
[   27.545529][   T12]  <TASK>
[   27.545669][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   27.546272][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   27.546424][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   27.546545][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   27.546669][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   27.546839][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   27.546958][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   27.547077][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   27.547197][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   27.547315][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   27.547436][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   27.547555][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   27.547676][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   27.547846][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   27.547962][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   27.548082][   T12]  process_one_work (kernel/workqueue.c:3314)
[   27.548206][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   27.548322][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   27.548496][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   27.548618][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   27.548789][   T12]  kthread (kernel/kthread.c:436)
[   27.548881][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.549027][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   27.549146][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   27.549265][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   27.549413][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   27.549532][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   27.549654][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   28.547941][   T12] ------------[ cut here ]------------
| [   28.548109][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   28.548354][   T12] Modules linked in:
| [   28.548770][   T12] Tainted: [W]=WARN
[   28.548866][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.549018][   T12] Workqueue: netns cleanup_net
[   28.549145][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.549299][   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
[   28.549727][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   28.549893][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c7fb8c0 RCX: 1ff4000000018eed
[   28.550076][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c7fb97c
[   28.550258][   T12] RBP: ff1100000fa8c000 R08: 1fe22000018ff731 R09: ff11000001aed1d0
[   28.550439][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   28.550617][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   28.550804][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   28.551011][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.551192][   T12] CR2: 00007fa0a901cb20 CR3: 00000000108d9004 CR4: 0000000000771ef0
[   28.551393][   T12] PKRU: 55555554
[   28.551496][   T12] Call Trace:
[   28.551616][   T12]  <TASK>
[   28.551713][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   28.551919][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   28.552091][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   28.552238][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   28.552395][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   28.552540][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   28.552707][   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)
[   28.552875][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   28.553027][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   28.553169][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.553315][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   28.553466][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   28.553607][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   28.553777][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   28.553926][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.554073][   T12]  process_one_work (kernel/workqueue.c:3314)
[   28.554278][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   28.564021][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.564146][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   28.564272][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   28.564388][   T12]  kthread (kernel/kthread.c:436)
[   28.564476][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.564625][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.564763][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   28.564887][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   28.565030][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   28.565145][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.565259][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   28.573783][   T12] ------------[ cut here ]------------
| [   28.573910][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   28.574137][   T12] Modules linked in:
| [   28.574493][   T12] Tainted: [W]=WARN
[   28.574580][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.574740][   T12] Workqueue: netns cleanup_net
[   28.574860][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.575010][   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
[   28.575421][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   28.575567][   T12] RAX: 00000000ffffffa6 RBX: ff1100000cfc58c0 RCX: 1ff4000000018eed
[   28.575746][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cfc597c
[   28.575920][   T12] RBP: ff1100000fa11000 R08: 1fe22000019f8b31 R09: ff11000001aed1d0
[   28.576092][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   28.576263][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   28.576436][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   28.576651][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.576802][   T12] CR2: 00007fa0a901cb20 CR3: 00000000108d9004 CR4: 0000000000771ef0
[   28.576980][   T12] PKRU: 55555554
[   28.577066][   T12] Call Trace:
[   28.577154][   T12]  <TASK>
[   28.577215][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   28.577367][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   28.577510][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   28.577625][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   28.577751][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   28.577865][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   28.577981][   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)
[   28.578101][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   28.578218][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   28.578333][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.578451][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   28.578568][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   28.578689][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   28.578812][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   28.578929][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.579049][   T12]  process_one_work (kernel/workqueue.c:3314)
[   28.579168][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   28.579283][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.579403][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   28.579523][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   28.579643][   T12]  kthread (kernel/kthread.c:436)
[   28.579731][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.579886][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.580001][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   28.580120][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   28.580269][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   28.580385][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.580500][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   28.582656][   T12] ------------[ cut here ]------------
| [   28.582774][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   28.583006][   T12] Modules linked in:
| [   28.583356][   T12] Tainted: [W]=WARN
[   28.583444][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.583589][   T12] Workqueue: netns cleanup_net
[   28.583712][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.583866][   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
[   28.584277][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   28.584421][   T12] RAX: 00000000ffffffa6 RBX: ff1100000cfc51c0 RCX: 1ff4000000018eed
[   28.584600][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cfc527c
[   28.584783][   T12] RBP: ff1100000aa7c000 R08: 1fe22000019f8a51 R09: ff11000001aed1d0
[   28.584957][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   28.585131][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   28.585309][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   28.585515][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.585668][   T12] CR2: 00007fa0a901cb20 CR3: 00000000108d9004 CR4: 0000000000771ef0
[   28.585849][   T12] PKRU: 55555554
[   28.585937][   T12] Call Trace:
[   28.586024][   T12]  <TASK>
[   28.586085][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   28.586239][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   28.586386][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   28.586504][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   28.586623][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   28.586748][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   28.586865][   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)
[   28.586983][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   28.587102][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   28.587218][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.587340][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   28.587457][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   28.587574][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   28.587696][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   28.587818][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.587939][   T12]  process_one_work (kernel/workqueue.c:3314)
[   28.588060][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   28.588180][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.588306][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   28.588430][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   28.588547][   T12]  kthread (kernel/kthread.c:436)
[   28.588639][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.588794][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.588913][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   28.589031][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   28.589176][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   28.589293][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.589409][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   28.591365][   T12] ------------[ cut here ]------------
| [   28.591477][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   28.591707][   T12] Modules linked in:
| [   28.592063][   T12] Tainted: [W]=WARN
[   28.592152][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.592296][   T12] Workqueue: netns cleanup_net
[   28.592418][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.592570][   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
[   28.593004][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   28.593151][   T12] RAX: 00000000ffffffa6 RBX: ff1100000cfc5c40 RCX: 1ff4000000018eed
[   28.593324][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cfc5cfc
[   28.593497][   T12] RBP: ff1100000f92c000 R08: 1fe22000019f8ba1 R09: ff11000001aed1d0
[   28.593681][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   28.593859][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   28.594032][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   28.594235][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.594381][   T12] CR2: 00007fa0a901cb20 CR3: 00000000108d9004 CR4: 0000000000771ef0
[   28.594560][   T12] PKRU: 55555554
[   28.594651][   T12] Call Trace:
[   28.594741][   T12]  <TASK>
[   28.594802][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   28.594949][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   28.595091][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   28.595206][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   28.595324][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   28.595440][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   28.595562][   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)
[   28.595690][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   28.595813][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   28.595929][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.596048][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   28.596165][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   28.596282][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   28.596404][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   28.596524][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.596644][   T12]  process_one_work (kernel/workqueue.c:3314)
[   28.596769][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   28.596884][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.597005][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   28.597126][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   28.597242][   T12]  kthread (kernel/kthread.c:436)
[   28.597328][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.597472][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.597588][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   28.597708][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   28.597858][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   28.597975][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.598092][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   28.600026][   T12] ------------[ cut here ]------------
| [   28.600153][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   28.600387][   T12] Modules linked in:
| [   28.600744][   T12] Tainted: [W]=WARN
[   28.600832][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.600978][   T12] Workqueue: netns cleanup_net
[   28.601101][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.601252][   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
[   28.601666][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   28.601815][   T12] RAX: 00000000ffffffa6 RBX: ff1100000cfc5540 RCX: 1ff4000000018eed
[   28.601991][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cfc55fc
[   28.602163][   T12] RBP: ff11000010234000 R08: 1fe22000019f8ac1 R09: ff11000001aed1d0
[   28.602333][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   28.602505][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   28.602681][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   28.602889][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.603036][   T12] CR2: 00007fa0a901cb20 CR3: 00000000108d9004 CR4: 0000000000771ef0
[   28.603213][   T12] PKRU: 55555554
[   28.603301][   T12] Call Trace:
[   28.603388][   T12]  <TASK>
[   28.603449][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   28.603597][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   28.603748][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   28.603864][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   28.603981][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   28.604096][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   28.604212][   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)
[   28.604329][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   28.604448][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   28.604571][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.604693][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   28.604815][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   28.604932][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   28.605049][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   28.605164][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.605287][   T12]  process_one_work (kernel/workqueue.c:3314)
[   28.605408][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   28.605525][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.605650][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   28.605777][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   28.605893][   T12]  kthread (kernel/kthread.c:436)
[   28.605980][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.606126][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.606242][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   28.606362][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   28.606508][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   28.606625][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.606747][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   28.622593][  T222] ------------[ cut here ]------------
| [   28.622750][  T222] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/222
| [   28.623011][  T222] Modules linked in:
| [   28.623414][  T222] Tainted: [W]=WARN
[   28.623515][  T222] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.623688][  T222] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.623865][  T222] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.624332][  T222] RSP: 0018:ffa00000008a7a80 EFLAGS: 00010286
[   28.624499][  T222] RAX: 00000000ffffffa6 RBX: ff1100000ba93540 RCX: 1ff4000000114f16
[   28.624700][  T222] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ba935fc
[   28.624902][  T222] RBP: ff110000089a9000 R08: 1fe22000017526c1 R09: ff1100000fd92e80
[   28.625098][  T222] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   28.625292][  T222] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000089a9000
[   28.625491][  T222] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   28.625726][  T222] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.625897][  T222] CR2: 00007fa0a8f22bc0 CR3: 0000000004c69001 CR4: 0000000000771ef0
[   28.626094][  T222] PKRU: 55555554
[   28.626193][  T222] Call Trace:
[   28.626290][  T222]  <TASK>
[   28.626359][  T222]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   28.626491][  T222]  ? notifier_call_chain (kernel/notifier.c:85)
[   28.626624][  T222]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   28.626729][  T222]  register_netdevice (net/core/dev.c:11488)
[   28.626868][  T222]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   28.627030][  T222]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   28.627160][  T222]  register_netdev (net/core/dev.c:11552)
[   28.627293][  T222]  loopback_net_init (drivers/net/loopback.c:218)
[   28.627426][  T222]  ops_init (net/core/net_namespace.c:137)
[   28.627527][  T222]  setup_net (net/core/net_namespace.c:446)
[   28.627633][  T222]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   28.627768][  T222]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   28.627900][  T222]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   28.628034][  T222]  copy_net_ns (net/core/net_namespace.c:579)
[   28.628166][  T222]  create_new_namespaces (kernel/nsproxy.c:132)
[   28.628304][  T222]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   28.628438][  T222]  ksys_unshare (kernel/fork.c:3243)
[   28.628570][  T222]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   28.628704][  T222]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   28.628839][  T222]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.628972][  T222]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   28.629105][  T222]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.629236][  T222]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   28.629367][  T222]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   28.629499][  T222]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   28.629632][  T222]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   28.629768][  T222]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   28.629897][  T222]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   28.630060][  T222] RIP: 0033:0x7fa0a8f22bcb
[   28.630201][  T222] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   28.630672][  T222] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   28.630873][  T222] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   28.631068][  T222] RDX: 00000000004064e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   28.631265][  T222] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   28.631461][  T222] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   28.631659][  T222] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   28.633552][   T12] ------------[ cut here ]------------
| [   28.633680][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   28.633918][   T12] Modules linked in:
| [   28.634281][   T12] Tainted: [W]=WARN
[   28.634371][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.634518][   T12] Workqueue: netns cleanup_net
[   28.634643][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.634805][   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
[   28.635226][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   28.635379][   T12] RAX: 00000000ffffffa6 RBX: ff11000009727e00 RCX: 1ff4000000018ed5
[   28.635555][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009727ebc
[   28.635743][   T12] RBP: ff1100000fa5c000 R08: 1fe22000012e4fd9 R09: ff11000001aed1d0
[   28.635920][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   28.636095][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   28.636272][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   28.636480][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.636633][   T12] CR2: 00007fa0a901cb20 CR3: 00000000108d9004 CR4: 0000000000771ef0
[   28.636820][   T12] PKRU: 55555554
[   28.636911][   T12] Call Trace:
[   28.637001][   T12]  <TASK>
[   28.637067][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   28.637217][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   28.637365][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   28.637486][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   28.637605][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   28.637730][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   28.637854][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   28.637973][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   28.638092][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   28.638210][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.638330][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   28.638455][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   28.638577][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   28.638703][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   28.638826][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.638945][   T12]  process_one_work (kernel/workqueue.c:3314)
[   28.639065][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   28.639182][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.639303][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   28.639424][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   28.639542][   T12]  kthread (kernel/kthread.c:436)
[   28.639634][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.639787][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.639905][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   28.640023][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   28.640171][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   28.640288][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.640405][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   28.651074][  T222] ------------[ cut here ]------------
| [   28.651214][  T222] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/222
| [   28.651474][  T222] Modules linked in:
| [   28.651879][  T222] Tainted: [W]=WARN
[   28.651978][  T222] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.652141][  T222] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.652310][  T222] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.652785][  T222] RSP: 0018:ffa00000008a7918 EFLAGS: 00010286
[   28.652955][  T222] RAX: 00000000ffffffa6 RBX: ff11000008f838c0 RCX: 1ff4000000114ee9
[   28.653155][  T222] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000008f8397c
[   28.653347][  T222] RBP: ff11000009ae4000 R08: 1fe22000011f0731 R09: ff1100000fd92e80
[   28.653543][  T222] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   28.653745][  T222] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009ae4000
[   28.653941][  T222] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   28.654171][  T222] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.654335][  T222] CR2: 00007fa0a8f22bc0 CR3: 0000000004c69001 CR4: 0000000000771ef0
[   28.654534][  T222] PKRU: 55555554
[   28.654638][  T222] Call Trace:
[   28.654739][  T222]  <TASK>
[   28.654806][  T222]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   28.654936][  T222]  ? notifier_call_chain (kernel/notifier.c:85)
[   28.655066][  T222]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   28.655165][  T222]  register_netdevice (net/core/dev.c:11488)
[   28.655296][  T222]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   28.655455][  T222]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   28.655587][  T222]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   28.655723][  T222]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   28.655858][  T222]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   28.655992][  T222]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   28.656124][  T222]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   28.656256][  T222]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   28.656390][  T222]  ops_init (net/core/net_namespace.c:137)
[   28.656489][  T222]  setup_net (net/core/net_namespace.c:446)
[   28.656588][  T222]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   28.656719][  T222]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   28.656855][  T222]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   28.656987][  T222]  copy_net_ns (net/core/net_namespace.c:579)
[   28.657117][  T222]  create_new_namespaces (kernel/nsproxy.c:132)
[   28.657249][  T222]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   28.657380][  T222]  ksys_unshare (kernel/fork.c:3243)
[   28.657510][  T222]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   28.657642][  T222]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   28.657802][  T222]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.657934][  T222]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   28.658067][  T222]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.658200][  T222]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   28.658329][  T222]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   28.658458][  T222]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   28.658589][  T222]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   28.658722][  T222]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   28.658861][  T222]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   28.659026][  T222] RIP: 0033:0x7fa0a8f22bcb
[   28.659161][  T222] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   28.659624][  T222] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   28.659832][  T222] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   28.660027][  T222] RDX: 00000000004064e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   28.660221][  T222] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   28.660415][  T222] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   28.660611][  T222] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   28.664402][  T222] ------------[ cut here ]------------
| [   28.664538][  T222] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/222
| [   28.664808][  T222] Modules linked in:
| [   28.665203][  T222] Tainted: [W]=WARN
[   28.665303][  T222] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.665468][  T222] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.665642][  T222] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.666108][  T222] RSP: 0018:ffa00000008a78f8 EFLAGS: 00010286
[   28.666274][  T222] RAX: 00000000ffffffa6 RBX: ff11000008f82040 RCX: 1ff4000000114ee5
[   28.666472][  T222] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000008f820fc
[   28.666671][  T222] RBP: ff1100000f384000 R08: 1fe22000011f0421 R09: ff1100000fd92e80
[   28.666870][  T222] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   28.667065][  T222] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f384000
[   28.667264][  T222] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   28.667494][  T222] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.667663][  T222] CR2: 00007fa0a8f22bc0 CR3: 0000000004c69001 CR4: 0000000000771ef0
[   28.668104][  T222] PKRU: 55555554
[   28.668203][  T222] Call Trace:
[   28.668300][  T222]  <TASK>
[   28.668368][  T222]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   28.668500][  T222]  ? notifier_call_chain (kernel/notifier.c:85)
[   28.668635][  T222]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   28.668740][  T222]  register_netdevice (net/core/dev.c:11488)
[   28.668872][  T222]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   28.669034][  T222]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   28.669167][  T222]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   28.669298][  T222]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   28.669432][  T222]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   28.669564][  T222]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   28.669698][  T222]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   28.669835][  T222]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   28.669968][  T222]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   28.670102][  T222]  vti_init_net (net/ipv4/ip_vti.c:517)
[   28.670232][  T222]  ops_init (net/core/net_namespace.c:137)
[   28.670333][  T222]  setup_net (net/core/net_namespace.c:446)
[   28.670434][  T222]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   28.670563][  T222]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   28.670696][  T222]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   28.670835][  T222]  copy_net_ns (net/core/net_namespace.c:579)
[   28.670966][  T222]  create_new_namespaces (kernel/nsproxy.c:132)
[   28.671101][  T222]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   28.671233][  T222]  ksys_unshare (kernel/fork.c:3243)
[   28.671365][  T222]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   28.671498][  T222]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   28.671633][  T222]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.671767][  T222]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   28.671903][  T222]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.672036][  T222]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   28.672167][  T222]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   28.672299][  T222]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   28.672429][  T222]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   28.672559][  T222]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   28.672694][  T222]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   28.672860][  T222] RIP: 0033:0x7fa0a8f22bcb
[   28.672998][  T222] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   28.673462][  T222] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   28.673666][  T222] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   28.673867][  T222] RDX: 00000000004064e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   28.674062][  T222] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   28.674261][  T222] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   28.674458][  T222] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   28.678545][  T222] ------------[ cut here ]------------
| [   28.678684][  T222] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/222
| [   28.679442][  T222] Modules linked in:
| [   28.679911][  T222] Tainted: [W]=WARN
[   28.680011][  T222] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.680173][  T222] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.680342][  T222] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.680863][  T222] RSP: 0018:ffa00000008a7a78 EFLAGS: 00010286
[   28.681028][  T222] RAX: 00000000ffffffa6 RBX: ff110000028a8200 RCX: 1ff4000000114f15
[   28.681275][  T222] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000028a82bc
[   28.681471][  T222] RBP: ff1100000fecc000 R08: 1fe2200000515059 R09: ff1100000fd92e80
[   28.681671][  T222] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   28.681920][  T222] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fecc000
[   28.682117][  T222] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   28.682345][  T222] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.682511][  T222] CR2: 00007fa0a8f22bc0 CR3: 0000000004c69001 CR4: 0000000000771ef0
[   28.682711][  T222] PKRU: 55555554
[   28.682859][  T222] Call Trace:
[   28.682956][  T222]  <TASK>
[   28.683023][  T222]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   28.683152][  T222]  ? notifier_call_chain (kernel/notifier.c:85)
[   28.683283][  T222]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   28.683381][  T222]  register_netdevice (net/core/dev.c:11488)
[   28.683515][  T222]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   28.683682][  T222]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.683867][  T222]  register_netdev (net/core/dev.c:11552)
[   28.683996][  T222]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   28.684127][  T222]  ops_init (net/core/net_namespace.c:137)
[   28.684226][  T222]  setup_net (net/core/net_namespace.c:446)
[   28.684324][  T222]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   28.684456][  T222]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   28.684584][  T222]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   28.684721][  T222]  copy_net_ns (net/core/net_namespace.c:579)
[   28.684910][  T222]  create_new_namespaces (kernel/nsproxy.c:132)
[   28.685042][  T222]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   28.685173][  T222]  ksys_unshare (kernel/fork.c:3243)
[   28.685304][  T222]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   28.685436][  T222]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   28.685565][  T222]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.685700][  T222]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   28.685885][  T222]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.686016][  T222]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   28.686144][  T222]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   28.686273][  T222]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   28.686402][  T222]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   28.686534][  T222]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   28.686667][  T222]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   28.686884][  T222] RIP: 0033:0x7fa0a8f22bcb
[   28.687017][  T222] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   28.687478][  T222] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   28.687676][  T222] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   28.687924][  T222] RDX: 00000000004064e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   28.688115][  T222] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   28.688309][  T222] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   28.688502][  T222] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   28.693504][  T222] ------------[ cut here ]------------
| [   28.693653][  T222] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: scm_rights/222
| [   28.693917][  T222] Modules linked in:
| [   28.694315][  T222] Tainted: [W]=WARN
[   28.694413][  T222] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.694580][  T222] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.694762][  T222] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.695222][  T222] RSP: 0018:ffa00000008a7a68 EFLAGS: 00010286
[   28.695388][  T222] RAX: 00000000ffffffa6 RBX: ff110000028343c0 RCX: 1ff4000000114f13
[   28.695581][  T222] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000283447c
[   28.695782][  T222] RBP: ff1100000f8a1000 R08: 1fe2200000506891 R09: ff1100000fd92e80
[   28.695978][  T222] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   28.696173][  T222] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f8a1000
[   28.696369][  T222] FS:  00007fa0a8e27740(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   28.696597][  T222] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.696772][  T222] CR2: 00007fa0a901cb20 CR3: 0000000004c69001 CR4: 0000000000771ef0
[   28.696969][  T222] PKRU: 55555554
[   28.697069][  T222] Call Trace:
[   28.697167][  T222]  <TASK>
[   28.697234][  T222]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   28.697364][  T222]  ? notifier_call_chain (kernel/notifier.c:85)
[   28.697495][  T222]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   28.697594][  T222]  register_netdevice (net/core/dev.c:11488)
[   28.697731][  T222]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   28.697902][  T222]  register_netdev (net/core/dev.c:11552)
[   28.698033][  T222]  sit_init_net (net/ipv6/sit.c:1860)
[   28.698165][  T222]  ops_init (net/core/net_namespace.c:137)
[   28.698264][  T222]  setup_net (net/core/net_namespace.c:446)
[   28.698363][  T222]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   28.698493][  T222]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   28.698623][  T222]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   28.699288][  T222]  copy_net_ns (net/core/net_namespace.c:579)
[   28.699422][  T222]  create_new_namespaces (kernel/nsproxy.c:132)
[   28.699555][  T222]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   28.699690][  T222]  ksys_unshare (kernel/fork.c:3243)
[   28.699826][  T222]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   28.699955][  T222]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   28.700083][  T222]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.700215][  T222]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   28.700347][  T222]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.700480][  T222]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   28.700611][  T222]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   28.700751][  T222]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   28.700881][  T222]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   28.701011][  T222]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   28.701143][  T222]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   28.701308][  T222] RIP: 0033:0x7fa0a8f22bcb
[   28.701448][  T222] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   28.701923][  T222] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   28.702120][  T222] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   28.702316][  T222] RDX: 00000000004064e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   28.702510][  T222] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   28.702709][  T222] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   28.702905][  T222] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   28.707503][  T222] ------------[ cut here ]------------
| [   28.707641][  T222] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: scm_rights/222
| [   28.707904][  T222] Modules linked in:
| [   28.708299][  T222] Tainted: [W]=WARN
[   28.708398][  T222] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.708562][  T222] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.708742][  T222] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.709209][  T222] RSP: 0018:ffa00000008a7a78 EFLAGS: 00010286
[   28.709376][  T222] RAX: 00000000ffffffa6 RBX: ff1100000d0891c0 RCX: 1ff4000000114f15
[   28.709570][  T222] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d08927c
[   28.709775][  T222] RBP: ff1100000f9e1000 R08: 1fe2200001a11251 R09: ff1100000fd92e80
[   28.709969][  T222] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   28.710163][  T222] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f9e1000
[   28.710357][  T222] FS:  00007fa0a8e27740(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   28.710586][  T222] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.710758][  T222] CR2: 00007fa0a901cb20 CR3: 0000000004c69001 CR4: 0000000000771ef0
[   28.710955][  T222] PKRU: 55555554
[   28.711053][  T222] Call Trace:
[   28.711149][  T222]  <TASK>
[   28.711217][  T222]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   28.711347][  T222]  ? notifier_call_chain (kernel/notifier.c:85)
[   28.711479][  T222]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   28.711579][  T222]  register_netdevice (net/core/dev.c:11488)
[   28.711717][  T222]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   28.711885][  T222]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.712019][  T222]  register_netdev (net/core/dev.c:11552)
[   28.712149][  T222]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   28.712280][  T222]  ops_init (net/core/net_namespace.c:137)
[   28.712379][  T222]  setup_net (net/core/net_namespace.c:446)
[   28.712480][  T222]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   28.712610][  T222]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   28.712753][  T222]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   28.712888][  T222]  copy_net_ns (net/core/net_namespace.c:579)
[   28.713021][  T222]  create_new_namespaces (kernel/nsproxy.c:132)
[   28.713155][  T222]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   28.713287][  T222]  ksys_unshare (kernel/fork.c:3243)
[   28.713418][  T222]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   28.713551][  T222]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   28.713684][  T222]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.713822][  T222]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   28.713956][  T222]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.714087][  T222]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   28.714219][  T222]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   28.714352][  T222]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   28.714484][  T222]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   28.714614][  T222]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   28.714753][  T222]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   28.714913][  T222] RIP: 0033:0x7fa0a8f22bcb
[   28.715049][  T222] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   28.715512][  T222] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   28.715708][  T222] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   28.715905][  T222] RDX: 00000000004064e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   28.716099][  T222] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   28.716294][  T222] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   28.716488][  T222] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   29.741278][   T12] ------------[ cut here ]------------
| [   29.741445][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   29.741697][   T12] Modules linked in:
| [   29.742078][   T12] Tainted: [W]=WARN
[   29.742167][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.742320][   T12] Workqueue: netns cleanup_net
[   29.742447][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   29.742602][   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
[   29.743036][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   29.743186][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c745000 RCX: 1ff4000000018eed
[   29.743498][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c7450bc
[   29.755478][   T12] RBP: ff1100000f9e1000 R08: 1fe22000018e8a19 R09: ff11000001aed1d0
[   29.755677][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   29.755866][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   29.756049][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   29.756253][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.756401][   T12] CR2: 00007fa0a8e21000 CR3: 0000000044d4d006 CR4: 0000000000771ef0
[   29.756576][   T12] PKRU: 55555554
[   29.756668][   T12] Call Trace:
[   29.756763][   T12]  <TASK>
[   29.756825][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   29.756978][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   29.757122][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   29.757241][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   29.757360][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   29.757478][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   29.757600][   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)
[   29.757725][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   29.757851][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   29.757965][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   29.758084][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   29.758206][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   29.758326][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   29.758442][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   29.758558][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   29.758680][   T12]  process_one_work (kernel/workqueue.c:3314)
[   29.758807][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   29.758924][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   29.759044][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   29.759168][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   29.759286][   T12]  kthread (kernel/kthread.c:436)
[   29.759375][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.759521][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   29.759645][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   29.759771][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   29.759914][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   29.760031][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   29.760148][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   29.762768][   T12] ------------[ cut here ]------------
| [   29.762935][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   29.763217][   T12] Modules linked in:
| [   29.763671][   T12] Tainted: [W]=WARN
[   29.763817][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.764012][   T12] Workqueue: netns cleanup_net
[   29.764178][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   29.764376][   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
[   29.764853][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   29.765049][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c744ac0 RCX: 1ff4000000018eed
[   29.765265][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c744b7c
[   29.765485][   T12] RBP: ff1100000f8a1000 R08: 1fe22000018e8971 R09: ff11000001aed1d0
[   29.765706][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   29.765934][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   29.766155][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   29.766404][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.766594][   T12] CR2: 00007fa0a8e9a0a0 CR3: 0000000002693004 CR4: 0000000000771ef0
[   29.766834][   T12] PKRU: 55555554
[   29.766968][   T12] Call Trace:
[   29.767105][   T12]  <TASK>
[   29.767212][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   29.767410][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   29.767601][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   29.767783][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   29.767948][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   29.768110][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   29.768274][   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)
[   29.768443][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   29.768610][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   29.768792][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   29.768960][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   29.769123][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   29.769284][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   29.769449][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   29.769615][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   29.769799][   T12]  process_one_work (kernel/workqueue.c:3314)
[   29.769965][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   29.770129][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   29.770296][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   29.770464][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   29.770626][   T12]  kthread (kernel/kthread.c:436)
[   29.770779][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.770974][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   29.771139][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   29.771304][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   29.771494][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   29.771663][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   29.771839][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   29.774382][   T12] ------------[ cut here ]------------
| [   29.774539][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   29.774825][   T12] Modules linked in:
| [   29.775270][   T12] Tainted: [W]=WARN
[   29.775403][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.775591][   T12] Workqueue: netns cleanup_net
[   29.775780][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   29.775977][   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
[   29.776434][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   29.776626][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c745c40 RCX: 1ff4000000018eed
[   29.776864][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c745cfc
[   29.777085][   T12] RBP: ff1100000fecc000 R08: 1fe22000018e8ba1 R09: ff11000001aed1d0
[   29.777302][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   29.777518][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   29.777758][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   29.778007][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.778197][   T12] CR2: 00007fa0a8e9a0a0 CR3: 0000000002693004 CR4: 0000000000771ef0
[   29.778417][   T12] PKRU: 55555554
[   29.778549][   T12] Call Trace:
[   29.778691][   T12]  <TASK>
[   29.778816][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   29.779017][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   29.779211][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   29.779375][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   29.779539][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   29.779706][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   29.779883][   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)
[   29.780050][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   29.780214][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   29.780378][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   29.780544][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   29.780716][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   29.780893][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   29.781059][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   29.781222][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   29.781388][   T12]  process_one_work (kernel/workqueue.c:3314)
[   29.781555][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   29.781730][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   29.781911][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   29.782078][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   29.782240][   T12]  kthread (kernel/kthread.c:436)
[   29.782375][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.782566][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   29.782750][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   29.782917][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   29.783107][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   29.783269][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   29.783432][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   29.785788][   T12] ------------[ cut here ]------------
| [   29.785947][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   29.786217][   T12] Modules linked in:
| [   29.786666][   T12] Tainted: [W]=WARN
[   29.786812][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.787003][   T12] Workqueue: netns cleanup_net
[   29.787170][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   29.787364][   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
[   29.787838][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   29.788029][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c7451c0 RCX: 1ff4000000018eed
[   29.788247][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c74527c
[   29.788463][   T12] RBP: ff1100000f384000 R08: 1fe22000018e8a51 R09: ff11000001aed1d0
[   29.788690][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   29.788922][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   29.789143][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   29.789390][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.789583][   T12] CR2: 00007fa0a8e9a0a0 CR3: 0000000002693004 CR4: 0000000000771ef0
[   29.789822][   T12] PKRU: 55555554
[   29.789955][   T12] Call Trace:
[   29.790087][   T12]  <TASK>
[   29.790194][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   29.790389][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   29.790579][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   29.790763][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   29.790930][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   29.791092][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   29.791255][   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)
[   29.791419][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   29.791585][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   29.791766][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   29.791932][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   29.792097][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   29.792260][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   29.792425][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   29.792589][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   29.792773][   T12]  process_one_work (kernel/workqueue.c:3314)
[   29.792941][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   29.793102][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   29.793269][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   29.793441][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   29.793605][   T12]  kthread (kernel/kthread.c:436)
[   29.793757][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.793948][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   29.794111][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   29.794277][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   29.794469][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   29.794644][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   29.794822][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   29.797180][   T12] ------------[ cut here ]------------
| [   29.797336][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   29.797609][   T12] Modules linked in:
| [   29.798084][   T12] Tainted: [W]=WARN
[   29.798216][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.798410][   T12] Workqueue: netns cleanup_net
[   29.798577][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   29.798795][   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
[   29.799251][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   29.799445][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c744c80 RCX: 1ff4000000018eed
[   29.799670][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c744d3c
[   29.799900][   T12] RBP: ff11000009ae4000 R08: 1fe22000018e89a9 R09: ff11000001aed1d0
[   29.800117][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   29.800338][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   29.800556][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   29.800825][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.801016][   T12] CR2: 00007fa0a8e9a0a0 CR3: 0000000002693004 CR4: 0000000000771ef0
[   29.801235][   T12] PKRU: 55555554
[   29.801370][   T12] Call Trace:
[   29.801503][   T12]  <TASK>
[   29.801609][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   29.801827][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   29.802018][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   29.802184][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   29.802348][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   29.802509][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   29.802684][   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)
[   29.802865][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   29.803034][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   29.803194][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   29.803361][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   29.803524][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   29.803691][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   29.803867][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   29.804032][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   29.804197][   T12]  process_one_work (kernel/workqueue.c:3314)
[   29.804365][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   29.804527][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   29.804699][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   29.804876][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   29.805038][   T12]  kthread (kernel/kthread.c:436)
[   29.805172][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.805365][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   29.805528][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   29.805698][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   29.805898][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   29.806059][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   29.806221][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   29.821028][  T225] ------------[ cut here ]------------
| [   29.821176][  T225] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: scm_rights/225
| [   29.821435][  T225] Modules linked in:
| [   29.821849][  T225] Tainted: [W]=WARN
[   29.821946][  T225] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.822107][  T225] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   29.822278][  T225] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   29.822749][  T225] RSP: 0018:ffa0000000917a80 EFLAGS: 00010286
[   29.822912][  T225] RAX: 00000000ffffffa6 RBX: ff1100000937a740 RCX: 1ff4000000122f16
[   29.823104][  T225] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000937a7fc
[   29.823298][  T225] RBP: ff1100000f37c000 R08: 1fe220000126f501 R09: ff1100000a942e80
[   29.823494][  T225] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   29.823692][  T225] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f37c000
[   29.823893][  T225] FS:  00007fa0a8e27740(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   29.824126][  T225] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.824287][  T225] CR2: 00007fa0a8f22bc0 CR3: 000000000e5cb002 CR4: 0000000000771ef0
[   29.824482][  T225] PKRU: 55555554
[   29.824578][  T225] Call Trace:
[   29.824679][  T225]  <TASK>
[   29.824749][  T225]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   29.824881][  T225]  ? notifier_call_chain (kernel/notifier.c:85)
[   29.825010][  T225]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   29.825108][  T225]  register_netdevice (net/core/dev.c:11488)
[   29.825239][  T225]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   29.825400][  T225]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   29.825530][  T225]  register_netdev (net/core/dev.c:11552)
[   29.825665][  T225]  loopback_net_init (drivers/net/loopback.c:218)
[   29.825802][  T225]  ops_init (net/core/net_namespace.c:137)
[   29.825901][  T225]  setup_net (net/core/net_namespace.c:446)
[   29.825999][  T225]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   29.826127][  T225]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   29.826256][  T225]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   29.826387][  T225]  copy_net_ns (net/core/net_namespace.c:579)
[   29.826517][  T225]  create_new_namespaces (kernel/nsproxy.c:132)
[   29.826654][  T225]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   29.826834][  T225]  ksys_unshare (kernel/fork.c:3243)
[   29.826962][  T225]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   29.827092][  T225]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   29.827219][  T225]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   29.827348][  T225]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   29.827482][  T225]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   29.827616][  T225]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   29.827752][  T225]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   29.827882][  T225]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   29.828009][  T225]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   29.828136][  T225]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   29.828263][  T225]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   29.828422][  T225] RIP: 0033:0x7fa0a8f22bcb
[   29.828559][  T225] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   29.829035][  T225] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   29.829229][  T225] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   29.829421][  T225] RDX: 0000000000406540 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   29.829615][  T225] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   29.829816][  T225] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   29.830009][  T225] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   29.834158][  T225] ------------[ cut here ]------------
| [   29.834292][  T225] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: scm_rights/225
| [   29.834544][  T225] Modules linked in:
| [   29.834940][  T225] Tainted: [W]=WARN
[   29.835036][  T225] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.835195][  T225] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   29.835362][  T225] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   29.835827][  T225] RSP: 0018:ffa0000000917918 EFLAGS: 00010286
[   29.835989][  T225] RAX: 00000000ffffffa6 RBX: ff11000010866200 RCX: 1ff4000000122ee9
[   29.836177][  T225] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000108662bc
[   29.836370][  T225] RBP: ff1100000f819000 R08: 1fe220000210cc59 R09: ff1100000a942e80
[   29.836559][  T225] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   29.836756][  T225] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f819000
[   29.836949][  T225] FS:  00007fa0a8e27740(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   29.837174][  T225] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.837336][  T225] CR2: 00007fa0a8f22bc0 CR3: 000000000e5cb002 CR4: 0000000000771ef0
[   29.837528][  T225] PKRU: 55555554
[   29.837623][  T225] Call Trace:
[   29.837722][  T225]  <TASK>
[   29.837793][  T225]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   29.837921][  T225]  ? notifier_call_chain (kernel/notifier.c:85)
[   29.838050][  T225]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   29.838149][  T225]  register_netdevice (net/core/dev.c:11488)
[   29.838279][  T225]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   29.838438][  T225]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   29.838567][  T225]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   29.838701][  T225]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   29.838834][  T225]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   29.838963][  T225]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   29.839092][  T225]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   29.839220][  T225]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   29.839350][  T225]  ops_init (net/core/net_namespace.c:137)
[   29.839449][  T225]  setup_net (net/core/net_namespace.c:446)
[   29.839546][  T225]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   29.839675][  T225]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   29.839808][  T225]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   29.839939][  T225]  copy_net_ns (net/core/net_namespace.c:579)
[   29.840067][  T225]  create_new_namespaces (kernel/nsproxy.c:132)
[   29.840197][  T225]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   29.840326][  T225]  ksys_unshare (kernel/fork.c:3243)
[   29.840453][  T225]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   29.840583][  T225]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   29.840716][  T225]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   29.840851][  T225]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   29.840982][  T225]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   29.841111][  T225]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   29.841238][  T225]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   29.841366][  T225]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   29.841495][  T225]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   29.841622][  T225]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   29.841758][  T225]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   29.841918][  T225] RIP: 0033:0x7fa0a8f22bcb
[   29.842051][  T225] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   29.842508][  T225] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   29.842705][  T225] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   29.842902][  T225] RDX: 0000000000406540 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   29.843091][  T225] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   29.843281][  T225] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   29.843471][  T225] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   29.845322][   T12] ------------[ cut here ]------------
| [   29.845481][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   29.845787][   T12] Modules linked in:
| [   29.846230][   T12] Tainted: [W]=WARN
[   29.846363][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.846553][   T12] Workqueue: netns cleanup_net
[   29.846744][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   29.846947][   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
[   29.847416][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   29.847612][   T12] RAX: 00000000ffffffa6 RBX: ff1100000cfbc740 RCX: 1ff4000000018ed5
[   29.847856][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cfbc7fc
[   29.848073][   T12] RBP: ff110000089a9000 R08: 1fe22000019f7901 R09: ff11000001aed1d0
[   29.848292][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   29.848510][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   29.848831][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   29.849148][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.849385][   T12] CR2: 00007fa0a8e9a0a0 CR3: 0000000002693004 CR4: 0000000000771ef0
[   29.849668][   T12] PKRU: 55555554
[   29.849858][   T12] Call Trace:
[   29.850037][   T12]  <TASK>
[   29.850204][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   29.850451][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   29.850709][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   29.850936][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   29.851198][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   29.851455][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   29.851639][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   29.851813][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   29.851983][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   29.852147][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   29.852315][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   29.852480][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   29.852649][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   29.852829][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   29.852994][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   29.853163][   T12]  process_one_work (kernel/workqueue.c:3314)
[   29.853332][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   29.853497][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   29.853673][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   29.853859][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   29.854023][   T12]  kthread (kernel/kthread.c:436)
[   29.854159][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.854353][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   29.854521][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   29.854696][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   29.854901][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   29.855069][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   29.855234][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   29.865600][  T225] ------------[ cut here ]------------
| [   29.865747][  T225] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: scm_rights/225
| [   29.866006][  T225] Modules linked in:
| [   29.866401][  T225] Tainted: [W]=WARN
[   29.866500][  T225] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.866670][  T225] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   29.866853][  T225] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   29.867326][  T225] RSP: 0018:ffa00000009178f8 EFLAGS: 00010286
[   29.867494][  T225] RAX: 00000000ffffffa6 RBX: ff1100000946a040 RCX: 1ff4000000122ee5
[   29.867696][  T225] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000946a0fc
[   29.867896][  T225] RBP: ff1100000a8cc000 R08: 1fe220000128d421 R09: ff1100000a942e80
[   29.868092][  T225] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   29.868287][  T225] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a8cc000
[   29.868485][  T225] FS:  00007fa0a8e27740(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   29.868717][  T225] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.868887][  T225] CR2: 00007fa0a8f22bc0 CR3: 000000000e5cb002 CR4: 0000000000771ef0
[   29.869084][  T225] PKRU: 55555554
[   29.869181][  T225] Call Trace:
[   29.869278][  T225]  <TASK>
[   29.869346][  T225]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   29.869477][  T225]  ? notifier_call_chain (kernel/notifier.c:85)
[   29.869608][  T225]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   29.869714][  T225]  register_netdevice (net/core/dev.c:11488)
[   29.869853][  T225]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   29.870018][  T225]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   29.870148][  T225]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   29.870279][  T225]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   29.870411][  T225]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   29.870547][  T225]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   29.870680][  T225]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   29.870815][  T225]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   29.870949][  T225]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   29.871085][  T225]  vti_init_net (net/ipv4/ip_vti.c:517)
[   29.871217][  T225]  ops_init (net/core/net_namespace.c:137)
[   29.871318][  T225]  setup_net (net/core/net_namespace.c:446)
[   29.871419][  T225]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   29.871549][  T225]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   29.871687][  T225]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   29.871824][  T225]  copy_net_ns (net/core/net_namespace.c:579)
[   29.871957][  T225]  create_new_namespaces (kernel/nsproxy.c:132)
[   29.872092][  T225]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   29.872224][  T225]  ksys_unshare (kernel/fork.c:3243)
[   29.872355][  T225]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   29.872486][  T225]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   29.872616][  T225]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   29.872757][  T225]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   29.872890][  T225]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   29.873022][  T225]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   29.873152][  T225]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   29.873281][  T225]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   29.873411][  T225]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   29.873542][  T225]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   29.873676][  T225]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   29.873843][  T225] RIP: 0033:0x7fa0a8f22bcb
[   29.873982][  T225] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   29.874448][  T225] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   29.874649][  T225] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   29.874852][  T225] RDX: 0000000000406540 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   29.875048][  T225] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   29.875244][  T225] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   29.875439][  T225] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   29.886340][  T225] ------------[ cut here ]------------
| [   29.886481][  T225] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: scm_rights/225
| [   29.886754][  T225] Modules linked in:
| [   29.887156][  T225] Tainted: [W]=WARN
[   29.887255][  T225] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.887419][  T225] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   29.887590][  T225] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   29.888069][  T225] RSP: 0018:ffa0000000917a78 EFLAGS: 00010286
[   29.888235][  T225] RAX: 00000000ffffffa6 RBX: ff110000028a9a80 RCX: 1ff4000000122f15
[   29.888433][  T225] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000028a9b3c
[   29.888628][  T225] RBP: ff1100000a0c4000 R08: 1fe2200000515369 R09: ff1100000a942e80
[   29.888864][  T225] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   29.889066][  T225] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a0c4000
[   29.889264][  T225] FS:  00007fa0a8e27740(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   29.889495][  T225] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.889664][  T225] CR2: 00007fa0a8e21000 CR3: 000000000e5cb002 CR4: 0000000000771ef0
[   29.889869][  T225] PKRU: 55555554
[   29.889968][  T225] Call Trace:
[   29.890065][  T225]  <TASK>
[   29.890133][  T225]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   29.890269][  T225]  ? notifier_call_chain (kernel/notifier.c:85)
[   29.890402][  T225]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   29.890502][  T225]  register_netdevice (net/core/dev.c:11488)
[   29.890639][  T225]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   29.890808][  T225]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   29.890943][  T225]  register_netdev (net/core/dev.c:11552)
[   29.891076][  T225]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   29.891210][  T225]  ops_init (net/core/net_namespace.c:137)
[   29.891310][  T225]  setup_net (net/core/net_namespace.c:446)
[   29.891411][  T225]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   29.891541][  T225]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   29.891675][  T225]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   29.891813][  T225]  copy_net_ns (net/core/net_namespace.c:579)
[   29.891946][  T225]  create_new_namespaces (kernel/nsproxy.c:132)
[   29.892081][  T225]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   29.892212][  T225]  ksys_unshare (kernel/fork.c:3243)
[   29.892342][  T225]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   29.892475][  T225]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   29.892603][  T225]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   29.892745][  T225]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   29.892877][  T225]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   29.893008][  T225]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   29.893137][  T225]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   29.893266][  T225]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   29.893395][  T225]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   29.893525][  T225]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   29.893659][  T225]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   29.893826][  T225] RIP: 0033:0x7fa0a8f22bcb
[   29.893964][  T225] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   29.894432][  T225] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   29.894630][  T225] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   29.894831][  T225] RDX: 0000000000406540 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   29.895025][  T225] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   29.895218][  T225] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   29.895411][  T225] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   29.899555][  T225] ------------[ cut here ]------------
| [   29.899693][  T225] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: scm_rights/225
| [   29.899958][  T225] Modules linked in:
| [   29.900352][  T225] Tainted: [W]=WARN
[   29.900449][  T225] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.900610][  T225] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   29.900787][  T225] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   29.901249][  T225] RSP: 0018:ffa0000000917a68 EFLAGS: 00010286
[   29.901412][  T225] RAX: 00000000ffffffa6 RBX: ff110000028a8580 RCX: 1ff4000000122f13
[   29.901607][  T225] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000028a863c
[   29.901809][  T225] RBP: ff1100000fb2c000 R08: 1fe22000005150c9 R09: ff1100000a942e80
[   29.902001][  T225] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   29.902195][  T225] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fb2c000
[   29.902392][  T225] FS:  00007fa0a8e27740(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   29.902620][  T225] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.902795][  T225] CR2: 00007fa0a8e21000 CR3: 000000000e5cb002 CR4: 0000000000771ef0
[   29.902989][  T225] PKRU: 55555554
[   29.903085][  T225] Call Trace:
[   29.903181][  T225]  <TASK>
[   29.903248][  T225]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   29.903377][  T225]  ? notifier_call_chain (kernel/notifier.c:85)
[   29.903506][  T225]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   29.903608][  T225]  register_netdevice (net/core/dev.c:11488)
[   29.903747][  T225]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   29.903910][  T225]  register_netdev (net/core/dev.c:11552)
[   29.904038][  T225]  sit_init_net (net/ipv6/sit.c:1860)
[   29.904168][  T225]  ops_init (net/core/net_namespace.c:137)
[   29.904268][  T225]  setup_net (net/core/net_namespace.c:446)
[   29.904365][  T225]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   29.904495][  T225]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   29.904624][  T225]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   29.904764][  T225]  copy_net_ns (net/core/net_namespace.c:579)
[   29.904894][  T225]  create_new_namespaces (kernel/nsproxy.c:132)
[   29.905025][  T225]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   29.905155][  T225]  ksys_unshare (kernel/fork.c:3243)
[   29.905284][  T225]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   29.905416][  T225]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   29.905546][  T225]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   29.905678][  T225]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   29.905812][  T225]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   29.905942][  T225]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   29.906069][  T225]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   29.906198][  T225]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   29.906326][  T225]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   29.906457][  T225]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   29.906585][  T225]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   29.906752][  T225] RIP: 0033:0x7fa0a8f22bcb
[   29.906885][  T225] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   29.907344][  T225] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   29.907538][  T225] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   29.907738][  T225] RDX: 0000000000406540 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   29.907930][  T225] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   29.908121][  T225] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   29.908314][  T225] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   29.912907][  T225] ------------[ cut here ]------------
| [   29.913044][  T225] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: scm_rights/225
| [   29.913299][  T225] Modules linked in:
| [   29.913701][  T225] Tainted: [W]=WARN
[   29.914314][  T225] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.914479][  T225] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   29.914651][  T225] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   29.915174][  T225] RSP: 0018:ffa0000000917a78 EFLAGS: 00010286
[   29.915338][  T225] RAX: 00000000ffffffa6 RBX: ff1100000cfc4c80 RCX: 1ff4000000122f15
[   29.915533][  T225] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cfc4d3c
[   29.915729][  T225] RBP: ff11000004d31000 R08: 1fe22000019f89a9 R09: ff1100000a942e80
[   29.915982][  T225] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   29.916176][  T225] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000004d31000
[   29.916375][  T225] FS:  00007fa0a8e27740(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   29.916602][  T225] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.916825][  T225] CR2: 00007fa0a8e21000 CR3: 000000000e5cb002 CR4: 0000000000771ef0
[   29.917018][  T225] PKRU: 55555554
[   29.917114][  T225] Call Trace:
[   29.917211][  T225]  <TASK>
[   29.917280][  T225]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   29.917409][  T225]  ? notifier_call_chain (kernel/notifier.c:85)
[   29.917538][  T225]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   29.917642][  T225]  register_netdevice (net/core/dev.c:11488)
[   29.917832][  T225]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   29.917992][  T225]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   29.918123][  T225]  register_netdev (net/core/dev.c:11552)
[   29.918254][  T225]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   29.918384][  T225]  ops_init (net/core/net_namespace.c:137)
[   29.918483][  T225]  setup_net (net/core/net_namespace.c:446)
[   29.918582][  T225]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   29.918714][  T225]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   29.918900][  T225]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   29.919033][  T225]  copy_net_ns (net/core/net_namespace.c:579)
[   29.919168][  T225]  create_new_namespaces (kernel/nsproxy.c:132)
[   29.919300][  T225]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   29.919429][  T225]  ksys_unshare (kernel/fork.c:3243)
[   29.919558][  T225]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   29.919693][  T225]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   29.919881][  T225]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   29.920010][  T225]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   29.920142][  T225]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   29.920272][  T225]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   29.920404][  T225]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   29.920533][  T225]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   29.920669][  T225]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   29.920855][  T225]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   29.920984][  T225]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   29.921144][  T225] RIP: 0033:0x7fa0a8f22bcb
[   29.921281][  T225] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   29.921811][  T225] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   29.922004][  T225] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   29.922195][  T225] RDX: 0000000000406540 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   29.922386][  T225] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   29.922579][  T225] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   29.922833][  T225] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   29.932637][   T12] ------------[ cut here ]------------
| [   29.932771][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   29.933001][   T12] Modules linked in:
| [   29.933354][   T12] Tainted: [W]=WARN
[   29.933442][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.933588][   T12] Workqueue: netns cleanup_net
[   29.933713][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   29.933869][   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
[   29.934285][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   29.934430][   T12] RAX: 00000000ffffffa6 RBX: ff1100000cfc4580 RCX: 1ff4000000018eed
[   29.934602][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cfc463c
[   29.934784][   T12] RBP: ff11000004d31000 R08: 1fe22000019f88c9 R09: ff11000001aed1d0
[   29.934955][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   29.935131][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   29.935306][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   29.935506][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.935654][   T12] CR2: 00007fa0a8e21000 CR3: 0000000044d4d006 CR4: 0000000000771ef0
[   29.935831][   T12] PKRU: 55555554
[   29.935918][   T12] Call Trace:
[   29.936009][   T12]  <TASK>
[   29.936070][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   29.936218][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   29.936361][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   29.936478][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   29.936596][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   29.936717][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   29.936841][   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)
[   29.936962][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   29.937078][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   29.937196][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   29.937313][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   29.937430][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   29.937544][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   29.937665][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   29.937787][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   29.937904][   T12]  process_one_work (kernel/workqueue.c:3314)
[   29.938023][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   29.938138][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   29.938262][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   29.938382][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   29.938501][   T12]  kthread (kernel/kthread.c:436)
[   29.938590][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.938745][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   29.938861][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   29.938975][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   29.939118][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   29.939232][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   29.939348][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   29.941422][   T12] ------------[ cut here ]------------
| [   29.941537][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   29.941775][   T12] Modules linked in:
| [   29.942127][   T12] Tainted: [W]=WARN
[   29.942215][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.942358][   T12] Workqueue: netns cleanup_net
[   29.942476][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   29.942627][   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
[   29.943044][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   29.943190][   T12] RAX: 00000000ffffffa6 RBX: ff1100000cfbd8c0 RCX: 1ff4000000018eed
[   29.943364][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cfbd97c
[   29.943566][   T12] RBP: ff1100000fb2c000 R08: 1fe22000019f7b31 R09: ff11000001aed1d0
[   29.943786][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   29.943995][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   29.944201][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   29.944440][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.944613][   T12] CR2: 00007fa0a8e21000 CR3: 0000000044d4d006 CR4: 0000000000771ef0
[   29.944880][   T12] PKRU: 55555554
[   29.944993][   T12] Call Trace:
[   29.945107][   T12]  <TASK>
[   29.945193][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   29.945372][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   29.945543][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   29.945762][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   29.945908][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   29.946057][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   29.946205][   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)
[   29.946354][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   29.946500][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   29.946656][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   29.946816][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   29.952797][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   29.952943][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   29.953087][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   29.953231][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   29.953377][   T12]  process_one_work (kernel/workqueue.c:3314)
[   29.953529][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   29.953679][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   29.953844][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   29.953997][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   29.954144][   T12]  kthread (kernel/kthread.c:436)
[   29.954258][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.954431][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   29.954580][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   29.954749][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   29.954922][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   29.955071][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   29.955215][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   29.960678][   T12] ------------[ cut here ]------------
| [   29.960818][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   29.961048][   T12] Modules linked in:
| [   29.961408][   T12] Tainted: [W]=WARN
[   29.961494][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.961642][   T12] Workqueue: netns cleanup_net
[   29.961770][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   29.961921][   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
[   29.962339][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   29.962487][   T12] RAX: 00000000ffffffa6 RBX: ff1100000eb39e00 RCX: 1ff4000000018eed
[   29.962669][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000eb39ebc
[   29.962847][   T12] RBP: ff1100000a0c4000 R08: 1fe2200001d673d9 R09: ff11000001aed1d0
[   29.963027][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   29.963198][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   29.963371][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   29.963577][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.963726][   T12] CR2: 00007fa0a8e21000 CR3: 0000000044d4d006 CR4: 0000000000771ef0
[   29.963906][   T12] PKRU: 55555554
[   29.963991][   T12] Call Trace:
[   29.964077][   T12]  <TASK>
[   29.964139][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   29.964291][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   29.964439][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   29.964557][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   29.964680][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   29.964802][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   29.964920][   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)
[   29.965039][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   29.965157][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   29.965272][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   29.965391][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   29.965510][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   29.965626][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   29.965754][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   29.965869][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   29.965988][   T12]  process_one_work (kernel/workqueue.c:3314)
[   29.966108][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   29.966224][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   29.966347][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   29.966474][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   29.966591][   T12]  kthread (kernel/kthread.c:436)
[   29.966681][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.966830][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   29.966952][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   29.967068][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   29.967215][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   29.967330][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   29.967448][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   29.969474][   T12] ------------[ cut here ]------------
| [   29.969607][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   29.969849][   T12] Modules linked in:
| [   29.970208][   T12] Tainted: [W]=WARN
[   29.970296][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.970444][   T12] Workqueue: netns cleanup_net
[   29.970565][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   29.970722][   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
[   29.971142][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   29.971290][   T12] RAX: 00000000ffffffa6 RBX: ff11000009726900 RCX: 1ff4000000018eed
[   29.971464][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000097269bc
[   29.971640][   T12] RBP: ff1100000a8cc000 R08: 1fe22000012e4d39 R09: ff11000001aed1d0
[   29.971824][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   29.971999][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   29.972173][   T12] FS:  0000000000000000(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   29.972380][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.972527][   T12] CR2: 00007fa0a8f22bc0 CR3: 000000000937f003 CR4: 0000000000771ef0
[   29.972707][   T12] PKRU: 55555554
[   29.972801][   T12] Call Trace:
[   29.972887][   T12]  <TASK>
[   29.972948][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   29.973097][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   29.973240][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   29.973356][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   29.973474][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   29.973595][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   29.973723][   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)
[   29.973847][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   29.973966][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   29.974081][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   29.974200][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   29.974322][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   29.974437][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   29.974562][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   29.974688][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   29.974811][   T12]  process_one_work (kernel/workqueue.c:3314)
[   29.974931][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   29.975048][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   29.975175][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   29.975296][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   29.975416][   T12]  kthread (kernel/kthread.c:436)
[   29.975506][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.975658][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   29.975782][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   29.975900][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   29.976046][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   29.976163][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   29.976283][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   29.978273][   T12] ------------[ cut here ]------------
| [   29.978392][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   29.978620][   T12] Modules linked in:
| [   29.978981][   T12] Tainted: [W]=WARN
[   29.979069][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.979216][   T12] Workqueue: netns cleanup_net
[   29.979337][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   29.979491][   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
[   29.979919][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   29.980070][   T12] RAX: 00000000ffffffa6 RBX: ff110000097271c0 RCX: 1ff4000000018eed
[   29.980247][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000972727c
[   29.980426][   T12] RBP: ff1100000f819000 R08: 1fe22000012e4e51 R09: ff11000001aed1d0
[   29.980600][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   29.980783][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   29.980961][   T12] FS:  0000000000000000(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   29.981166][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.981314][   T12] CR2: 00007fa0a8f22bc0 CR3: 000000000937f003 CR4: 0000000000771ef0
[   29.981490][   T12] PKRU: 55555554
[   29.981576][   T12] Call Trace:
[   29.981667][   T12]  <TASK>
[   29.981728][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   29.981884][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   29.982028][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   29.982146][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   29.982264][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   29.982380][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   29.982501][   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)
[   29.982619][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   29.982748][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   29.982865][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   29.982990][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   29.983107][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   29.983227][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   29.983346][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   29.983462][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   29.983580][   T12]  process_one_work (kernel/workqueue.c:3314)
[   29.983709][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   29.983831][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   29.983953][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   29.984076][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   29.984193][   T12]  kthread (kernel/kthread.c:436)
[   29.984282][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.984432][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   29.984552][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   29.984674][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   29.984826][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   29.984943][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   29.985061][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   29.999850][  T227] ------------[ cut here ]------------
| [   29.999988][  T227] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/227
| [   30.000243][  T227] Modules linked in:
| [   30.000649][  T227] Tainted: [W]=WARN
[   30.000752][  T227] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.000916][  T227] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.001089][  T227] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   30.001555][  T227] RSP: 0018:ffa0000000907a80 EFLAGS: 00010286
[   30.001723][  T227] RAX: 00000000ffffffa6 RBX: ff1100000960f1c0 RCX: 1ff4000000120f16
[   30.001922][  T227] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000960f27c
[   30.002118][  T227] RBP: ff110000020bc000 R08: 1fe22000012c1e51 R09: ff11000010035180
[   30.002312][  T227] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   30.002506][  T227] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000020bc000
[   30.002704][  T227] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   30.002942][  T227] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.003107][  T227] CR2: 00007fa0a8f22bc0 CR3: 000000000937f003 CR4: 0000000000771ef0
[   30.003304][  T227] PKRU: 55555554
[   30.003401][  T227] Call Trace:
[   30.003498][  T227]  <TASK>
[   30.003565][  T227]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   30.003701][  T227]  ? notifier_call_chain (kernel/notifier.c:85)
[   30.003837][  T227]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   30.003937][  T227]  register_netdevice (net/core/dev.c:11488)
[   30.004070][  T227]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   30.004234][  T227]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   30.004366][  T227]  register_netdev (net/core/dev.c:11552)
[   30.004498][  T227]  loopback_net_init (drivers/net/loopback.c:218)
[   30.004629][  T227]  ops_init (net/core/net_namespace.c:137)
[   30.004738][  T227]  setup_net (net/core/net_namespace.c:446)
[   30.004837][  T227]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   30.004967][  T227]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   30.005098][  T227]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   30.005230][  T227]  copy_net_ns (net/core/net_namespace.c:579)
[   30.005361][  T227]  create_new_namespaces (kernel/nsproxy.c:132)
[   30.005496][  T227]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   30.005627][  T227]  ksys_unshare (kernel/fork.c:3243)
[   30.005766][  T227]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   30.005897][  T227]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   30.006025][  T227]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.006157][  T227]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   30.006290][  T227]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.006420][  T227]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   30.006550][  T227]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   30.006680][  T227]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   30.006812][  T227]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   30.006942][  T227]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   30.007071][  T227]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   30.007232][  T227] RIP: 0033:0x7fa0a8f22bcb
[   30.007370][  T227] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   30.007841][  T227] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   30.008038][  T227] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   30.008232][  T227] RDX: 0000000000406540 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   30.008427][  T227] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   30.008711][  T227] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   30.008909][  T227] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   30.013476][  T227] ------------[ cut here ]------------
| [   30.013608][  T227] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/227
| [   30.013956][  T227] Modules linked in:
| [   30.014345][  T227] Tainted: [W]=WARN
[   30.014442][  T227] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.014696][  T227] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.014872][  T227] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   30.015419][  T227] RSP: 0018:ffa0000000907918 EFLAGS: 00010286
[   30.015582][  T227] RAX: 00000000ffffffa6 RBX: ff110000092cd540 RCX: 1ff4000000120ee9
[   30.015787][  T227] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000092cd5fc
[   30.015981][  T227] RBP: ff1100000ea69000 R08: 1fe2200001259ac1 R09: ff11000010035180
[   30.016173][  T227] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   30.016450][  T227] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000ea69000
[   30.016646][  T227] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   30.016962][  T227] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.017124][  T227] CR2: 00007fa0a8f22bc0 CR3: 000000000937f003 CR4: 0000000000771ef0
[   30.017317][  T227] PKRU: 55555554
[   30.017413][  T227] Call Trace:
[   30.017595][  T227]  <TASK>
[   30.017666][  T227]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   30.017801][  T227]  ? notifier_call_chain (kernel/notifier.c:85)
[   30.017931][  T227]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   30.018031][  T227]  register_netdevice (net/core/dev.c:11488)
[   30.018248][  T227]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   30.018409][  T227]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   30.018540][  T227]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   30.018673][  T227]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   30.018894][  T227]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   30.019026][  T227]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   30.019155][  T227]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   30.019286][  T227]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   30.019505][  T227]  ops_init (net/core/net_namespace.c:137)
[   30.019604][  T227]  setup_net (net/core/net_namespace.c:446)
[   30.019706][  T227]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   30.019839][  T227]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   30.020054][  T227]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   30.020186][  T227]  copy_net_ns (net/core/net_namespace.c:579)
[   30.020317][  T227]  create_new_namespaces (kernel/nsproxy.c:132)
[   30.020449][  T227]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   30.020672][  T227]  ksys_unshare (kernel/fork.c:3243)
[   30.020807][  T227]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   30.020936][  T227]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   30.021066][  T227]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.021283][  T227]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   30.021414][  T227]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.021546][  T227]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   30.021680][  T227]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   30.021812][  T227]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   30.021940][  T227]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   30.022070][  T227]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   30.022198][  T227]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   30.022444][  T227] RIP: 0033:0x7fa0a8f22bcb
[   30.022579][  T227] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   30.023135][  T227] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   30.023329][  T227] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   30.023609][  T227] RDX: 0000000000406540 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   30.023810][  T227] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   30.024002][  T227] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   30.024284][  T227] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   30.028515][  T227] ------------[ cut here ]------------
| [   30.028653][  T227] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/227
| [   30.029005][  T227] Modules linked in:
| [   30.029490][  T227] Tainted: [W]=WARN
[   30.029590][  T227] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.029765][  T227] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.030027][  T227] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   30.030496][  T227] RSP: 0018:ffa00000009078f8 EFLAGS: 00010286
[   30.030761][  T227] RAX: 00000000ffffffa6 RBX: ff1100000d1f1e00 RCX: 1ff4000000120ee5
[   30.030959][  T227] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d1f1ebc
[   30.031154][  T227] RBP: ff11000005094000 R08: 1fe2200001a3e3d9 R09: ff11000010035180
[   30.031438][  T227] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   30.031631][  T227] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000005094000
[   30.031934][  T227] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   30.032161][  T227] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.032324][  T227] CR2: 00007fa0a8f22bc0 CR3: 000000000937f003 CR4: 0000000000771ef0
[   30.032608][  T227] PKRU: 55555554
[   30.032709][  T227] Call Trace:
[   30.032810][  T227]  <TASK>
[   30.032879][  T227]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   30.033011][  T227]  ? notifier_call_chain (kernel/notifier.c:85)
[   30.033230][  T227]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   30.033329][  T227]  register_netdevice (net/core/dev.c:11488)
[   30.033462][  T227]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   30.033625][  T227]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   30.033855][  T227]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   30.033987][  T227]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   30.034119][  T227]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   30.034252][  T227]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   30.034471][  T227]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   30.034603][  T227]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   30.034742][  T227]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   30.034876][  T227]  vti_init_net (net/ipv4/ip_vti.c:517)
[   30.035097][  T227]  ops_init (net/core/net_namespace.c:137)
[   30.035199][  T227]  setup_net (net/core/net_namespace.c:446)
[   30.035298][  T227]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   30.035428][  T227]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   30.035648][  T227]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   30.035783][  T227]  copy_net_ns (net/core/net_namespace.c:579)
[   30.035917][  T227]  create_new_namespaces (kernel/nsproxy.c:132)
[   30.036049][  T227]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   30.036269][  T227]  ksys_unshare (kernel/fork.c:3243)
[   30.036399][  T227]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   30.036530][  T227]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   30.036666][  T227]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.036801][  T227]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   30.036933][  T227]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.037064][  T227]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   30.037197][  T227]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   30.037414][  T227]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   30.037545][  T227]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   30.037677][  T227]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   30.037810][  T227]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   30.038059][  T227] RIP: 0033:0x7fa0a8f22bcb
[   30.038195][  T227] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   30.038758][  T227] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   30.038954][  T227] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   30.039236][  T227] RDX: 0000000000406540 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   30.039431][  T227] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   30.039626][  T227] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   30.039828][  T227] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   30.046623][  T227] ------------[ cut here ]------------
| [   30.046768][  T227] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/227
| [   30.047023][  T227] Modules linked in:
| [   30.047419][  T227] Tainted: [W]=WARN
[   30.047517][  T227] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.047681][  T227] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.047852][  T227] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   30.048313][  T227] RSP: 0018:ffa0000000907a78 EFLAGS: 00010286
[   30.048475][  T227] RAX: 00000000ffffffa6 RBX: ff1100000960e200 RCX: 1ff4000000120f15
[   30.048671][  T227] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000960e2bc
[   30.048867][  T227] RBP: ff11000008d21000 R08: 1fe22000012c1c59 R09: ff11000010035180
[   30.049061][  T227] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   30.049251][  T227] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008d21000
[   30.049443][  T227] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   30.049671][  T227] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.049837][  T227] CR2: 00007fa0a8f22bc0 CR3: 000000000937f003 CR4: 0000000000771ef0
[   30.050031][  T227] PKRU: 55555554
[   30.050127][  T227] Call Trace:
[   30.050224][  T227]  <TASK>
[   30.050290][  T227]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   30.050420][  T227]  ? notifier_call_chain (kernel/notifier.c:85)
[   30.050548][  T227]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   30.050652][  T227]  register_netdevice (net/core/dev.c:11488)
[   30.050788][  T227]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   30.050949][  T227]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.051080][  T227]  register_netdev (net/core/dev.c:11552)
[   30.051209][  T227]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   30.051339][  T227]  ops_init (net/core/net_namespace.c:137)
[   30.051438][  T227]  setup_net (net/core/net_namespace.c:446)
[   30.051537][  T227]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   30.051671][  T227]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   30.051858][  T227]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   30.051989][  T227]  copy_net_ns (net/core/net_namespace.c:579)
[   30.052120][  T227]  create_new_namespaces (kernel/nsproxy.c:132)
[   30.052251][  T227]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   30.052381][  T227]  ksys_unshare (kernel/fork.c:3243)
[   30.052510][  T227]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   30.052640][  T227]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   30.052824][  T227]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.052953][  T227]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   30.053083][  T227]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.053212][  T227]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   30.053395][  T227]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   30.053524][  T227]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   30.053659][  T227]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   30.053843][  T227]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   30.053971][  T227]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   30.054128][  T227] RIP: 0033:0x7fa0a8f22bcb
[   30.054262][  T227] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   30.054722][  T227] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   30.054973][  T227] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   30.055164][  T227] RDX: 0000000000406540 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   30.055355][  T227] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   30.055548][  T227] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   30.055798][  T227] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   30.068219][   T12] ------------[ cut here ]------------
| [   30.068345][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   30.068576][   T12] Modules linked in:
| [   30.068941][   T12] Tainted: [W]=WARN
[   30.069032][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.069181][   T12] Workqueue: netns cleanup_net
[   30.069303][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.069458][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   30.069890][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   30.070039][   T12] RAX: 00000000ffffffa6 RBX: ff1100000960ec80 RCX: 1ff4000000018ed5
[   30.070214][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000960ed3c
[   30.070390][   T12] RBP: ff1100000f37c000 R08: 1fe22000012c1da9 R09: ff11000001aed1d0
[   30.070565][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   30.070747][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   30.070927][   T12] FS:  0000000000000000(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   30.071133][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.071280][   T12] CR2: 00007fa0a8f22bc0 CR3: 000000000937f003 CR4: 0000000000771ef0
[   30.071458][   T12] PKRU: 55555554
[   30.071546][   T12] Call Trace:
[   30.071639][   T12]  <TASK>
[   30.071700][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   30.071855][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   30.072007][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   30.072129][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   30.072248][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   30.072365][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   30.072485][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   30.072604][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   30.072726][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   30.072847][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.072973][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   30.073091][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   30.073210][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   30.073332][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   30.073452][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.073571][   T12]  process_one_work (kernel/workqueue.c:3314)
[   30.073695][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   30.073819][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   30.073943][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   30.074069][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   30.074189][   T12]  kthread (kernel/kthread.c:436)
[   30.074278][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   30.074427][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   30.074545][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   30.074667][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   30.074819][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   30.074938][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   30.075057][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   30.079367][  T227] ------------[ cut here ]------------
| [   30.079513][  T227] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: scm_rights/227
| [   30.079944][  T227] Modules linked in:
| [   30.080341][  T227] Tainted: [W]=WARN
[   30.080438][  T227] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.080599][  T227] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.080780][  T227] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   30.081241][  T227] RSP: 0018:ffa0000000907a68 EFLAGS: 00010286
[   30.081406][  T227] RAX: 00000000ffffffa6 RBX: ff1100000937ac80 RCX: 1ff4000000120f13
[   30.081599][  T227] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000937ad3c
[   30.081802][  T227] RBP: ff1100000fc01000 R08: 1fe220000126f5a9 R09: ff11000010035180
[   30.081995][  T227] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   30.082187][  T227] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fc01000
[   30.082380][  T227] FS:  00007fa0a8e27740(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   30.082609][  T227] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.082780][  T227] CR2: 00007fa0a8e9a0a0 CR3: 000000000937f004 CR4: 0000000000771ef0
[   30.082974][  T227] PKRU: 55555554
[   30.083070][  T227] Call Trace:
[   30.083168][  T227]  <TASK>
[   30.083235][  T227]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   30.083365][  T227]  ? notifier_call_chain (kernel/notifier.c:85)
[   30.083497][  T227]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   30.083596][  T227]  register_netdevice (net/core/dev.c:11488)
[   30.083731][  T227]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   30.083900][  T227]  register_netdev (net/core/dev.c:11552)
[   30.084029][  T227]  sit_init_net (net/ipv6/sit.c:1860)
[   30.084161][  T227]  ops_init (net/core/net_namespace.c:137)
[   30.084260][  T227]  setup_net (net/core/net_namespace.c:446)
[   30.084358][  T227]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   30.084489][  T227]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   30.084618][  T227]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   30.084761][  T227]  copy_net_ns (net/core/net_namespace.c:579)
[   30.084892][  T227]  create_new_namespaces (kernel/nsproxy.c:132)
[   30.085023][  T227]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   30.085153][  T227]  ksys_unshare (kernel/fork.c:3243)
[   30.085281][  T227]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   30.085411][  T227]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   30.085540][  T227]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.085674][  T227]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   30.085810][  T227]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.085942][  T227]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   30.086070][  T227]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   30.086198][  T227]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   30.086329][  T227]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   30.086458][  T227]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   30.086587][  T227]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   30.086755][  T227] RIP: 0033:0x7fa0a8f22bcb
[   30.086891][  T227] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   30.087351][  T227] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   30.087545][  T227] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   30.087746][  T227] RDX: 0000000000406540 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   30.087938][  T227] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   30.088130][  T227] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   30.088320][  T227] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   30.092966][  T227] ------------[ cut here ]------------
| [   30.093100][  T227] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: scm_rights/227
| [   30.093355][  T227] Modules linked in:
| [   30.093756][  T227] Tainted: [W]=WARN
[   30.093856][  T227] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.094016][  T227] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.094184][  T227] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   30.094645][  T227] RSP: 0018:ffa0000000907a78 EFLAGS: 00010286
[   30.094813][  T227] RAX: 00000000ffffffa6 RBX: ff1100000946ac80 RCX: 1ff4000000120f15
[   30.095004][  T227] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000946ad3c
[   30.095196][  T227] RBP: ff1100000f934000 R08: 1fe220000128d5a9 R09: ff11000010035180
[   30.095390][  T227] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   30.095586][  T227] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f934000
[   30.095789][  T227] FS:  00007fa0a8e27740(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   30.096015][  T227] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.096178][  T227] CR2: 00007fa0a8e9a0a0 CR3: 000000000937f004 CR4: 0000000000771ef0
[   30.096372][  T227] PKRU: 55555554
[   30.096471][  T227] Call Trace:
[   30.096569][  T227]  <TASK>
[   30.096639][  T227]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   30.096773][  T227]  ? notifier_call_chain (kernel/notifier.c:85)
[   30.096903][  T227]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   30.097003][  T227]  register_netdevice (net/core/dev.c:11488)
[   30.097134][  T227]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   30.097295][  T227]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.097430][  T227]  register_netdev (net/core/dev.c:11552)
[   30.097560][  T227]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   30.097694][  T227]  ops_init (net/core/net_namespace.c:137)
[   30.097799][  T227]  setup_net (net/core/net_namespace.c:446)
[   30.097898][  T227]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   30.098027][  T227]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   30.098157][  T227]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   30.098288][  T227]  copy_net_ns (net/core/net_namespace.c:579)
[   30.098419][  T227]  create_new_namespaces (kernel/nsproxy.c:132)
[   30.098549][  T227]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   30.098683][  T227]  ksys_unshare (kernel/fork.c:3243)
[   30.098815][  T227]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   30.098947][  T227]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   30.099074][  T227]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.099205][  T227]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   30.099335][  T227]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.099467][  T227]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   30.099595][  T227]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   30.099726][  T227]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   30.099860][  T227]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   30.099990][  T227]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   30.100119][  T227]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   30.100280][  T227] RIP: 0033:0x7fa0a8f22bcb
[   30.100413][  T227] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   30.100876][  T227] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   30.101070][  T227] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   30.101261][  T227] RDX: 0000000000406540 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   30.101453][  T227] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   30.101646][  T227] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   30.101842][  T227] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   30.130692][  T229] ------------[ cut here ]------------
| [   30.130883][  T229] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/229
| [   30.131195][  T229] Modules linked in:
| [   30.131696][  T229] Tainted: [W]=WARN
[   30.131853][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.132068][  T229] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.132288][  T229] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   30.132818][  T229] RSP: 0018:ffa0000000867a80 EFLAGS: 00010286
[   30.133031][  T229] RAX: 00000000ffffffa6 RBX: ff110000096c23c0 RCX: 1ff400000010cf16
[   30.133272][  T229] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000096c247c
[   30.133520][  T229] RBP: ff1100000f81c000 R08: 1fe22000012d8491 R09: ff11000010142e80
[   30.133784][  T229] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   30.134024][  T229] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f81c000
[   30.134267][  T229] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   30.134543][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.134777][  T229] CR2: 00007fa0a8f22bc0 CR3: 000000000e5cb006 CR4: 0000000000771ef0
[   30.135022][  T229] PKRU: 55555554
[   30.135169][  T229] Call Trace:
[   30.135315][  T229]  <TASK>
[   30.135430][  T229]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   30.135610][  T229]  ? notifier_call_chain (kernel/notifier.c:85)
[   30.135808][  T229]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   30.135958][  T229]  register_netdevice (net/core/dev.c:11488)
[   30.136139][  T229]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   30.136348][  T229]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   30.136531][  T229]  register_netdev (net/core/dev.c:11552)
[   30.136715][  T229]  loopback_net_init (drivers/net/loopback.c:218)
[   30.136907][  T229]  ops_init (net/core/net_namespace.c:137)
[   30.137054][  T229]  setup_net (net/core/net_namespace.c:446)
[   30.137200][  T229]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   30.137377][  T229]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   30.137558][  T229]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   30.137761][  T229]  copy_net_ns (net/core/net_namespace.c:579)
[   30.137941][  T229]  create_new_namespaces (kernel/nsproxy.c:132)
[   30.138121][  T229]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   30.138299][  T229]  ksys_unshare (kernel/fork.c:3243)
[   30.138476][  T229]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   30.138661][  T229]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   30.138848][  T229]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.139030][  T229]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   30.139211][  T229]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.139390][  T229]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   30.139567][  T229]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   30.139762][  T229]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   30.139942][  T229]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   30.140120][  T229]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   30.140300][  T229]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   30.140511][  T229] RIP: 0033:0x7fa0a8f22bcb
[   30.140703][  T229] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   30.141224][  T229] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   30.141474][  T229] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   30.141720][  T229] RDX: 0000000000406540 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   30.141974][  T229] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   30.142215][  T229] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   30.142456][  T229] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   30.147110][  T229] ------------[ cut here ]------------
| [   30.147287][  T229] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/229
| [   30.147597][  T229] Modules linked in:
| [   30.148107][  T229] Tainted: [W]=WARN
[   30.148253][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.148462][  T229] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.148681][  T229] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   30.149199][  T229] RSP: 0018:ffa0000000867918 EFLAGS: 00010286
[   30.149412][  T229] RAX: 00000000ffffffa6 RBX: ff11000009851700 RCX: 1ff400000010cee9
[   30.149659][  T229] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000098517bc
[   30.149912][  T229] RBP: ff1100000ea74000 R08: 1fe220000130a2f9 R09: ff11000010142e80
[   30.150152][  T229] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   30.150392][  T229] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000ea74000
[   30.150641][  T229] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   30.150933][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.151144][  T229] CR2: 00007fa0a8f22bc0 CR3: 000000000e5cb006 CR4: 0000000000771ef0
[   30.151388][  T229] PKRU: 55555554
[   30.151532][  T229] Call Trace:
[   30.151680][  T229]  <TASK>
[   30.151808][  T229]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   30.151986][  T229]  ? notifier_call_chain (kernel/notifier.c:85)
[   30.152167][  T229]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   30.152314][  T229]  register_netdevice (net/core/dev.c:11488)
[   30.152494][  T229]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   30.152711][  T229]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   30.152904][  T229]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   30.153084][  T229]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   30.153263][  T229]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   30.153443][  T229]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   30.153622][  T229]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   30.153819][  T229]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   30.154000][  T229]  ops_init (net/core/net_namespace.c:137)
[   30.154149][  T229]  setup_net (net/core/net_namespace.c:446)
[   30.154296][  T229]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   30.154472][  T229]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   30.154660][  T229]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   30.154849][  T229]  copy_net_ns (net/core/net_namespace.c:579)
[   30.155029][  T229]  create_new_namespaces (kernel/nsproxy.c:132)
[   30.155210][  T229]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   30.155389][  T229]  ksys_unshare (kernel/fork.c:3243)
[   30.155568][  T229]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   30.155768][  T229]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   30.155954][  T229]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.156133][  T229]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   30.156314][  T229]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.156493][  T229]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   30.156678][  T229]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   30.156867][  T229]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   30.157045][  T229]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   30.157223][  T229]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   30.157405][  T229]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   30.157613][  T229] RIP: 0033:0x7fa0a8f22bcb
[   30.157817][  T229] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   30.158321][  T229] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   30.158569][  T229] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   30.158832][  T229] RDX: 0000000000406540 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   30.159072][  T229] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   30.159311][  T229] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   30.159553][  T229] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   30.163837][  T229] ------------[ cut here ]------------
| [   30.164015][  T229] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/229
| [   30.164324][  T229] Modules linked in:
| [   30.164837][  T229] Tainted: [W]=WARN
[   30.164985][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.165202][  T229] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.165421][  T229] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   30.165953][  T229] RSP: 0018:ffa00000008678f8 EFLAGS: 00010286
[   30.166168][  T229] RAX: 00000000ffffffa6 RBX: ff1100000c4bfe00 RCX: 1ff400000010cee5
[   30.166414][  T229] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c4bfebc
[   30.166663][  T229] RBP: ff1100000eaac000 R08: 1fe2200001897fd9 R09: ff11000010142e80
[   30.166917][  T229] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   30.167159][  T229] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000eaac000
[   30.167406][  T229] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   30.167692][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.167918][  T229] CR2: 00007fa0a8f22bc0 CR3: 000000000e5cb006 CR4: 0000000000771ef0
[   30.168165][  T229] PKRU: 55555554
[   30.168311][  T229] Call Trace:
[   30.168457][  T229]  <TASK>
[   30.168585][  T229]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   30.168786][  T229]  ? notifier_call_chain (kernel/notifier.c:85)
[   30.168966][  T229]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   30.169116][  T229]  register_netdevice (net/core/dev.c:11488)
[   30.169301][  T229]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   30.169512][  T229]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   30.169702][  T229]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   30.169899][  T229]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   30.170080][  T229]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   30.170261][  T229]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   30.170442][  T229]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   30.170622][  T229]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   30.170827][  T229]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   30.171009][  T229]  vti_init_net (net/ipv4/ip_vti.c:517)
[   30.171188][  T229]  ops_init (net/core/net_namespace.c:137)
[   30.171340][  T229]  setup_net (net/core/net_namespace.c:446)
[   30.171487][  T229]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   30.171672][  T229]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   30.171866][  T229]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   30.172048][  T229]  copy_net_ns (net/core/net_namespace.c:579)
[   30.172229][  T229]  create_new_namespaces (kernel/nsproxy.c:132)
[   30.172412][  T229]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   30.172596][  T229]  ksys_unshare (kernel/fork.c:3243)
[   30.172797][  T229]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   30.172975][  T229]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   30.173153][  T229]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.173334][  T229]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   30.173514][  T229]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.173703][  T229]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   30.173899][  T229]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   30.174080][  T229]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   30.174257][  T229]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   30.174438][  T229]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   30.174619][  T229]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   30.174849][  T229] RIP: 0033:0x7fa0a8f22bcb
[   30.175034][  T229] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   30.175542][  T229] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   30.175810][  T229] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   30.176050][  T229] RDX: 0000000000406540 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   30.176293][  T229] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   30.176536][  T229] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   30.176797][  T229] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   30.182395][  T229] ------------[ cut here ]------------
| [   30.182570][  T229] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/229
| [   30.182891][  T229] Modules linked in:
| [   30.183387][  T229] Tainted: [W]=WARN
[   30.183529][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.183818][  T229] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.184091][  T229] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   30.184654][  T229] RSP: 0018:ffa0000000867a78 EFLAGS: 00010286
[   30.184932][  T229] RAX: 00000000ffffffa6 RBX: ff1100000e4f9700 RCX: 1ff400000010cf15
[   30.185225][  T229] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e4f97bc
[   30.185514][  T229] RBP: ff1100000eab4000 R08: 1fe2200001c9f2f9 R09: ff11000010142e80
[   30.185830][  T229] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   30.186122][  T229] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000eab4000
[   30.186418][  T229] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   30.186763][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.187027][  T229] CR2: 00007fa0a8f22bc0 CR3: 000000000e5cb006 CR4: 0000000000771ef0
[   30.187324][  T229] PKRU: 55555554
[   30.187519][  T229] Call Trace:
[   30.187723][  T229]  <TASK>
[   30.187906][  T229]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   30.188136][  T229]  ? notifier_call_chain (kernel/notifier.c:85)
[   30.188367][  T229]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   30.188566][  T229]  register_netdevice (net/core/dev.c:11488)
[   30.188821][  T229]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   30.189085][  T229]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.189315][  T229]  register_netdev (net/core/dev.c:11552)
[   30.189542][  T229]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   30.189796][  T229]  ops_init (net/core/net_namespace.c:137)
[   30.189997][  T229]  setup_net (net/core/net_namespace.c:446)
[   30.190195][  T229]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   30.190426][  T229]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   30.190662][  T229]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   30.190906][  T229]  copy_net_ns (net/core/net_namespace.c:579)
[   30.191133][  T229]  create_new_namespaces (kernel/nsproxy.c:132)
[   30.191366][  T229]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   30.191595][  T229]  ksys_unshare (kernel/fork.c:3243)
[   30.191842][  T229]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   30.192077][  T229]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   30.192305][  T229]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.192535][  T229]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   30.192782][  T229]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.193014][  T229]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   30.193243][  T229]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   30.193471][  T229]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   30.193706][  T229]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   30.193954][  T229]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   30.194183][  T229]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   30.194441][  T229] RIP: 0033:0x7fa0a8f22bcb
[   30.194687][  T229] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   30.195263][  T229] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   30.195558][  T229] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   30.195871][  T229] RDX: 0000000000406540 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   30.196162][  T229] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   30.196458][  T229] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   30.196771][  T229] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   30.201277][   T12] ------------[ cut here ]------------
| [   30.201409][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   30.201646][   T12] Modules linked in:
| [   30.202014][   T12] Tainted: [W]=WARN
[   30.202102][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.202246][   T12] Workqueue: netns cleanup_net
[   30.202366][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.202518][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   30.202946][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   30.203098][   T12] RAX: 00000000ffffffa6 RBX: ff1100000eb38900 RCX: 1ff4000000018eed
[   30.203271][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000eb389bc
[   30.203443][   T12] RBP: ff1100000f934000 R08: 1fe2200001d67139 R09: ff11000001aed1d0
[   30.203618][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   30.203803][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   30.203979][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   30.204182][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.204328][   T12] CR2: 00007fa0a8e9a0a0 CR3: 000000000d8ff003 CR4: 0000000000771ef0
[   30.204506][   T12] PKRU: 55555554
[   30.204596][   T12] Call Trace:
[   30.204687][   T12]  <TASK>
[   30.204750][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   30.204903][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   30.205045][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   30.205166][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   30.205288][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   30.205404][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   30.205521][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   30.205640][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   30.205764][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   30.205882][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.205999][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   30.206115][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   30.206229][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   30.206347][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   30.206465][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.206582][   T12]  process_one_work (kernel/workqueue.c:3314)
[   30.206705][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   30.206826][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   30.206946][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   30.207066][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   30.207182][   T12]  kthread (kernel/kthread.c:436)
[   30.207269][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   30.207412][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   30.207529][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   30.207649][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   30.207802][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   30.207920][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   30.208034][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   30.216450][   T12] ------------[ cut here ]------------
| [   30.216573][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   30.217216][   T12] Modules linked in:
| [   30.217580][   T12] Tainted: [W]=WARN
[   30.217677][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.217868][   T12] Workqueue: netns cleanup_net
[   30.217988][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.218138][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   30.218563][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   30.218716][   T12] RAX: 00000000ffffffa6 RBX: ff1100000eb39a80 RCX: 1ff4000000018eed
[   30.218942][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000eb39b3c
[   30.219116][   T12] RBP: ff1100000fc01000 R08: 1fe2200001d67369 R09: ff11000001aed1d0
[   30.219287][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   30.219458][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   30.219632][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   30.219887][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.220033][   T12] CR2: 00007fa0a8e9a0a0 CR3: 000000000d8ff003 CR4: 0000000000771ef0
[   30.220205][   T12] PKRU: 55555554
[   30.220290][   T12] Call Trace:
[   30.220376][   T12]  <TASK>
[   30.220436][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   30.220588][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   30.220781][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   30.220899][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   30.221016][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   30.221131][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   30.221248][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   30.221366][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   30.221483][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   30.221599][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.221722][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   30.221886][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   30.222000][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   30.222117][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   30.222231][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.222348][   T12]  process_one_work (kernel/workqueue.c:3314)
[   30.222472][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   30.222588][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   30.222711][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   30.222877][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   30.222994][   T12]  kthread (kernel/kthread.c:436)
[   30.223086][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   30.223233][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   30.223349][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   30.223467][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   30.223612][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   30.223782][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   30.223898][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   30.226520][   T12] ------------[ cut here ]------------
| [   30.226637][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   30.227083][   T12] Modules linked in:
| [   30.227435][   T12] Tainted: [W]=WARN
[   30.227521][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.227675][   T12] Workqueue: netns cleanup_net
[   30.227799][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.227951][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   30.228361][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   30.228507][   T12] RAX: 00000000ffffffa6 RBX: ff110000054fe3c0 RCX: 1ff4000000018eed
[   30.228682][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000054fe47c
[   30.228859][   T12] RBP: ff11000008d21000 R08: 1fe2200000a9fc91 R09: ff11000001aed1d0
[   30.229031][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   30.229202][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   30.229374][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   30.229575][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.229723][   T12] CR2: 00007fa0a8e9a0a0 CR3: 000000000d8ff003 CR4: 0000000000771ef0
[   30.229899][   T12] PKRU: 55555554
[   30.229984][   T12] Call Trace:
[   30.230071][   T12]  <TASK>
[   30.230132][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   30.230280][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   30.230424][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   30.230542][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   30.230664][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   30.230784][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   30.230901][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   30.231019][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   30.231135][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   30.231250][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.231368][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   30.231487][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   30.231606][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   30.231726][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   30.231847][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.231964][   T12]  process_one_work (kernel/workqueue.c:3314)
[   30.232081][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   30.232197][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   30.232317][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   30.232436][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   30.232550][   T12]  kthread (kernel/kthread.c:436)
[   30.232641][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   30.232789][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   30.232904][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   30.233020][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   30.233163][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   30.233282][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   30.233398][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   30.235377][   T12] ------------[ cut here ]------------
| [   30.235534][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   30.235831][   T12] Modules linked in:
| [   30.236276][   T12] Tainted: [W]=WARN
[   30.236408][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.236596][   T12] Workqueue: netns cleanup_net
[   30.236785][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.236982][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   30.237436][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   30.237627][   T12] RAX: 00000000ffffffa6 RBX: ff1100000e4f9380 RCX: 1ff4000000018eed
[   30.237865][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e4f943c
[   30.238083][   T12] RBP: ff11000005094000 R08: 1fe2200001c9f289 R09: ff11000001aed1d0
[   30.238299][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   30.238515][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   30.238751][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   30.238997][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.239186][   T12] CR2: 00007fa0a8f22bc0 CR3: 000000000e5cb006 CR4: 0000000000771ef0
[   30.239404][   T12] PKRU: 55555554
[   30.239536][   T12] Call Trace:
[   30.239673][   T12]  <TASK>
[   30.239790][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   30.239983][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   30.240175][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   30.240340][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   30.240505][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   30.240674][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   30.240854][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   30.241017][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   30.241181][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   30.241343][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.241508][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   30.241677][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   30.241852][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   30.242017][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   30.242178][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.242342][   T12]  process_one_work (kernel/workqueue.c:3314)
[   30.242508][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   30.242679][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   30.242861][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   30.243028][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   30.243190][   T12]  kthread (kernel/kthread.c:436)
[   30.243323][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   30.243513][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   30.243680][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   30.243861][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   30.244051][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   30.244213][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   30.244376][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   30.246707][   T12] ------------[ cut here ]------------
| [   30.246876][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   30.247151][   T12] Modules linked in:
| [   30.247593][   T12] Tainted: [W]=WARN
[   30.247748][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.247936][   T12] Workqueue: netns cleanup_net
[   30.248103][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.248299][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   30.248776][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   30.248969][   T12] RAX: 00000000ffffffa6 RBX: ff1100000be5c3c0 RCX: 1ff4000000018eed
[   30.249187][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000be5c47c
[   30.249403][   T12] RBP: ff1100000ea69000 R08: 1fe22000017cb891 R09: ff11000001aed1d0
[   30.249622][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   30.249859][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   30.250078][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   30.250322][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.250516][   T12] CR2: 00007fa0a8f22bc0 CR3: 000000000e5cb006 CR4: 0000000000771ef0
[   30.250752][   T12] PKRU: 55555554
[   30.250885][   T12] Call Trace:
[   30.251017][   T12]  <TASK>
[   30.251123][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   30.251318][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   30.251507][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   30.251677][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   30.251858][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   30.252020][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   30.252184][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   30.252349][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   30.252515][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   30.252684][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.252865][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   30.253029][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   30.253191][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   30.253356][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   30.253519][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.253691][   T12]  process_one_work (kernel/workqueue.c:3314)
[   30.253872][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   30.254037][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   30.254203][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   30.254374][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   30.254537][   T12]  kthread (kernel/kthread.c:436)
[   30.254679][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   30.254883][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   30.255044][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   30.255208][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   30.255396][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   30.255560][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   30.255745][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   30.260523][  T229] ------------[ cut here ]------------
| [   30.260674][  T229] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/229
| [   30.260946][  T229] Modules linked in:
| [   30.261342][  T229] Tainted: [W]=WARN
[   30.261440][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.261604][  T229] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.261781][  T229] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   30.262260][  T229] RSP: 0018:ffa0000000867a68 EFLAGS: 00010286
[   30.262424][  T229] RAX: 00000000ffffffa6 RBX: ff110000054ffc40 RCX: 1ff400000010cf13
[   30.262619][  T229] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000054ffcfc
[   30.262821][  T229] RBP: ff1100000f881000 R08: 1fe2200000a9ffa1 R09: ff11000010142e80
[   30.263015][  T229] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   30.263208][  T229] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f881000
[   30.263407][  T229] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   30.263638][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.263807][  T229] CR2: 00007fa0a901cb20 CR3: 000000000e5cb006 CR4: 0000000000771ef0
[   30.264003][  T229] PKRU: 55555554
[   30.264100][  T229] Call Trace:
[   30.264196][  T229]  <TASK>
[   30.264263][  T229]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   30.264395][  T229]  ? notifier_call_chain (kernel/notifier.c:85)
[   30.264525][  T229]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   30.264624][  T229]  register_netdevice (net/core/dev.c:11488)
[   30.264765][  T229]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   30.264929][  T229]  register_netdev (net/core/dev.c:11552)
[   30.265058][  T229]  sit_init_net (net/ipv6/sit.c:1860)
[   30.265191][  T229]  ops_init (net/core/net_namespace.c:137)
[   30.265291][  T229]  setup_net (net/core/net_namespace.c:446)
[   30.265389][  T229]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   30.265518][  T229]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   30.265651][  T229]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   30.265791][  T229]  copy_net_ns (net/core/net_namespace.c:579)
[   30.265925][  T229]  create_new_namespaces (kernel/nsproxy.c:132)
[   30.266058][  T229]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   30.266190][  T229]  ksys_unshare (kernel/fork.c:3243)
[   30.266321][  T229]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   30.266451][  T229]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   30.266581][  T229]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.266715][  T229]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   30.266854][  T229]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.266986][  T229]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   30.267116][  T229]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   30.267246][  T229]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   30.267378][  T229]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   30.267507][  T229]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   30.267641][  T229]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   30.267808][  T229] RIP: 0033:0x7fa0a8f22bcb
[   30.267944][  T229] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   30.268405][  T229] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   30.268602][  T229] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   30.268806][  T229] RDX: 0000000000406540 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   30.269002][  T229] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   30.269195][  T229] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   30.269388][  T229] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   30.274035][  T229] ------------[ cut here ]------------
| [   30.274172][  T229] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/229
| [   30.274427][  T229] Modules linked in:
| [   30.274838][  T229] Tainted: [W]=WARN
[   30.274936][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.275100][  T229] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.275270][  T229] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   30.275745][  T229] RSP: 0018:ffa0000000867a78 EFLAGS: 00010286
[   30.275910][  T229] RAX: 00000000ffffffa6 RBX: ff110000027b78c0 RCX: 1ff400000010cf15
[   30.276105][  T229] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000027b797c
[   30.276301][  T229] RBP: ff1100000fdb4000 R08: 1fe22000004f6f31 R09: ff11000010142e80
[   30.276499][  T229] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   30.276696][  T229] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fdb4000
[   30.276898][  T229] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   30.277127][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.277294][  T229] CR2: 00007fa0a901cb20 CR3: 000000000e5cb006 CR4: 0000000000771ef0
[   30.277492][  T229] PKRU: 55555554
[   30.277590][  T229] Call Trace:
[   30.277693][  T229]  <TASK>
[   30.277767][  T229]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   30.277899][  T229]  ? notifier_call_chain (kernel/notifier.c:85)
[   30.278029][  T229]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   30.278130][  T229]  register_netdevice (net/core/dev.c:11488)
[   30.278264][  T229]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   30.278425][  T229]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.278559][  T229]  register_netdev (net/core/dev.c:11552)
[   30.278692][  T229]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   30.278827][  T229]  ops_init (net/core/net_namespace.c:137)
[   30.278926][  T229]  setup_net (net/core/net_namespace.c:446)
[   30.279025][  T229]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   30.279156][  T229]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   30.279286][  T229]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   30.279420][  T229]  copy_net_ns (net/core/net_namespace.c:579)
[   30.279551][  T229]  create_new_namespaces (kernel/nsproxy.c:132)
[   30.279690][  T229]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   30.279827][  T229]  ksys_unshare (kernel/fork.c:3243)
[   30.279958][  T229]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   30.280090][  T229]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   30.280219][  T229]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.280350][  T229]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   30.280481][  T229]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.280612][  T229]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   30.280750][  T229]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   30.280880][  T229]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   30.281009][  T229]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   30.281138][  T229]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   30.281269][  T229]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   30.281433][  T229] RIP: 0033:0x7fa0a8f22bcb
[   30.281570][  T229] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   30.282046][  T229] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   30.282241][  T229] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   30.282436][  T229] RDX: 0000000000406540 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   30.282631][  T229] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   30.282837][  T229] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   30.283030][  T229] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   30.307661][   T12] ------------[ cut here ]------------
| [   30.307846][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   30.308128][   T12] Modules linked in:
| [   30.308577][   T12] Tainted: [W]=WARN
[   30.308721][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.309294][   T12] Workqueue: netns cleanup_net
[   30.309474][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.309680][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   30.310160][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   30.310355][   T12] RAX: 00000000ffffffa6 RBX: ff110000027b6200 RCX: 1ff4000000018ed5
[   30.310578][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000027b62bc
[   30.310819][   T12] RBP: ff110000020bc000 R08: 1fe22000004f6c59 R09: ff11000001aed1d0
[   30.311042][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   30.311266][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   30.311491][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   30.311763][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.311957][   T12] CR2: 00007fa0a8f22bc0 CR3: 0000000044d4d005 CR4: 0000000000771ef0
[   30.312184][   T12] PKRU: 55555554
[   30.312318][   T12] Call Trace:
[   30.312452][   T12]  <TASK>
[   30.312560][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   30.312780][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   30.312981][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   30.313150][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   30.313318][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   30.313489][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   30.313662][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   30.313846][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   30.314016][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   30.314179][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.314349][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   30.314517][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   30.314689][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   30.314877][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   30.315045][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.315212][   T12]  process_one_work (kernel/workqueue.c:3314)
[   30.315381][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   30.315546][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   30.315724][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   30.315909][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   30.316078][   T12]  kthread (kernel/kthread.c:436)
[   30.316214][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   30.316406][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   30.316572][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   30.316754][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   30.316952][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   30.317119][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   30.317289][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   30.325781][  T231] ------------[ cut here ]------------
| [   30.325923][  T231] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/231
| [   30.326179][  T231] Modules linked in:
| [   30.326574][  T231] Tainted: [W]=WARN
[   30.326678][  T231] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.327154][  T231] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.327327][  T231] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   30.327796][  T231] RSP: 0018:ffa0000000907a80 EFLAGS: 00010286
[   30.327960][  T231] RAX: 00000000ffffffa6 RBX: ff1100000a14cac0 RCX: 1ff4000000120f16
[   30.328154][  T231] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a14cb7c
[   30.328348][  T231] RBP: ff11000001ff1000 R08: 1fe2200001429971 R09: ff110000101dae80
[   30.328540][  T231] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   30.328742][  T231] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000001ff1000
[   30.328941][  T231] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   30.329170][  T231] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.329333][  T231] CR2: 00007fa0a8f22bc0 CR3: 000000000d8ff001 CR4: 0000000000771ef0
[   30.329528][  T231] PKRU: 55555554
[   30.329627][  T231] Call Trace:
[   30.329728][  T231]  <TASK>
[   30.329802][  T231]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   30.329935][  T231]  ? notifier_call_chain (kernel/notifier.c:85)
[   30.330065][  T231]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   30.330164][  T231]  register_netdevice (net/core/dev.c:11488)
[   30.330295][  T231]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   30.330457][  T231]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   30.330589][  T231]  register_netdev (net/core/dev.c:11552)
[   30.330724][  T231]  loopback_net_init (drivers/net/loopback.c:218)
[   30.330862][  T231]  ops_init (net/core/net_namespace.c:137)
[   30.330962][  T231]  setup_net (net/core/net_namespace.c:446)
[   30.331060][  T231]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   30.331190][  T231]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   30.331320][  T231]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   30.331452][  T231]  copy_net_ns (net/core/net_namespace.c:579)
[   30.331583][  T231]  create_new_namespaces (kernel/nsproxy.c:132)
[   30.331723][  T231]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   30.331859][  T231]  ksys_unshare (kernel/fork.c:3243)
[   30.331988][  T231]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   30.332117][  T231]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   30.332246][  T231]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.332376][  T231]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   30.332507][  T231]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.332644][  T231]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   30.332778][  T231]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   30.332907][  T231]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   30.333037][  T231]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   30.333166][  T231]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   30.333296][  T231]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   30.333457][  T231] RIP: 0033:0x7fa0a8f22bcb
[   30.333593][  T231] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   30.334065][  T231] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   30.334261][  T231] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   30.334455][  T231] RDX: 0000000000406540 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   30.334655][  T231] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   30.334855][  T231] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   30.335049][  T231] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   30.339216][  T231] ------------[ cut here ]------------
| [   30.339351][  T231] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/231
| [   30.339605][  T231] Modules linked in:
| [   30.340263][  T231] Tainted: [W]=WARN
[   30.340362][  T231] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.340525][  T231] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.340695][  T231] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   30.341159][  T231] RSP: 0018:ffa0000000907918 EFLAGS: 00010286
[   30.341322][  T231] RAX: 00000000ffffffa6 RBX: ff1100000b570ac0 RCX: 1ff4000000120ee9
[   30.341515][  T231] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b570b7c
[   30.341713][  T231] RBP: ff11000009b54000 R08: 1fe22000016ae171 R09: ff110000101dae80
[   30.341913][  T231] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   30.342105][  T231] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009b54000
[   30.342299][  T231] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   30.342525][  T231] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.342695][  T231] CR2: 00007fa0a8f22bc0 CR3: 000000000d8ff001 CR4: 0000000000771ef0
[   30.342897][  T231] PKRU: 55555554
[   30.342994][  T231] Call Trace:
[   30.343089][  T231]  <TASK>
[   30.343157][  T231]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   30.343286][  T231]  ? notifier_call_chain (kernel/notifier.c:85)
[   30.343416][  T231]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   30.343516][  T231]  register_netdevice (net/core/dev.c:11488)
[   30.343650][  T231]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   30.343816][  T231]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   30.343948][  T231]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   30.344078][  T231]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   30.344207][  T231]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   30.344338][  T231]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   30.344470][  T231]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   30.344601][  T231]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   30.344745][  T231]  ops_init (net/core/net_namespace.c:137)
[   30.344846][  T231]  setup_net (net/core/net_namespace.c:446)
[   30.344944][  T231]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   30.345073][  T231]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   30.345203][  T231]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   30.345335][  T231]  copy_net_ns (net/core/net_namespace.c:579)
[   30.345465][  T231]  create_new_namespaces (kernel/nsproxy.c:132)
[   30.345597][  T231]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   30.345737][  T231]  ksys_unshare (kernel/fork.c:3243)
[   30.345866][  T231]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   30.345995][  T231]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   30.346123][  T231]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.346256][  T231]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   30.346387][  T231]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.346517][  T231]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   30.346651][  T231]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   30.346789][  T231]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   30.346919][  T231]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   30.347047][  T231]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   30.347175][  T231]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   30.347339][  T231] RIP: 0033:0x7fa0a8f22bcb
[   30.347472][  T231] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   30.347938][  T231] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   30.348130][  T231] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   30.348325][  T231] RDX: 0000000000406540 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   30.348517][  T231] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   30.348712][  T231] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   30.348906][  T231] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   30.352652][  T231] ------------[ cut here ]------------
| [   30.352792][  T231] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/231
| [   30.353050][  T231] Modules linked in:
| [   30.353442][  T231] Tainted: [W]=WARN
[   30.353541][  T231] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.353706][  T231] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.353877][  T231] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   30.354342][  T231] RSP: 0018:ffa00000009078f8 EFLAGS: 00010286
[   30.354505][  T231] RAX: 00000000ffffffa6 RBX: ff110000096c2ac0 RCX: 1ff4000000120ee5
[   30.354704][  T231] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000096c2b7c
[   30.354903][  T231] RBP: ff1100000da04000 R08: 1fe22000012d8571 R09: ff110000101dae80
[   30.355098][  T231] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   30.355291][  T231] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000da04000
[   30.355488][  T231] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   30.355721][  T231] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.355889][  T231] CR2: 00007fa0a8f22bc0 CR3: 000000000d8ff001 CR4: 0000000000771ef0
[   30.356085][  T231] PKRU: 55555554
[   30.356182][  T231] Call Trace:
[   30.356280][  T231]  <TASK>
[   30.356348][  T231]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   30.356479][  T231]  ? notifier_call_chain (kernel/notifier.c:85)
[   30.356611][  T231]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   30.356714][  T231]  register_netdevice (net/core/dev.c:11488)
[   30.356851][  T231]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   30.357013][  T231]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   30.357146][  T231]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   30.357275][  T231]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   30.357408][  T231]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   30.357540][  T231]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   30.357674][  T231]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   30.357809][  T231]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   30.357939][  T231]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   30.358070][  T231]  vti_init_net (net/ipv4/ip_vti.c:517)
[   30.358201][  T231]  ops_init (net/core/net_namespace.c:137)
[   30.358301][  T231]  setup_net (net/core/net_namespace.c:446)
[   30.358400][  T231]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   30.358531][  T231]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   30.358664][  T231]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   30.358800][  T231]  copy_net_ns (net/core/net_namespace.c:579)
[   30.358930][  T231]  create_new_namespaces (kernel/nsproxy.c:132)
[   30.359062][  T231]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   30.359192][  T231]  ksys_unshare (kernel/fork.c:3243)
[   30.359323][  T231]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   30.359454][  T231]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   30.359583][  T231]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.359717][  T231]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   30.359854][  T231]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.359984][  T231]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   30.360111][  T231]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   30.360240][  T231]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   30.360370][  T231]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   30.360500][  T231]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   30.360629][  T231]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   30.360800][  T231] RIP: 0033:0x7fa0a8f22bcb
[   30.360932][  T231] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   30.361392][  T231] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   30.361587][  T231] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   30.361790][  T231] RDX: 0000000000406540 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   30.361985][  T231] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   30.362180][  T231] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   30.362373][  T231] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   30.378677][  T231] ------------[ cut here ]------------
| [   30.378819][  T231] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/231
| [   30.379074][  T231] Modules linked in:
| [   30.379462][  T231] Tainted: [W]=WARN
[   30.379558][  T231] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.379726][  T231] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.379898][  T231] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   30.380352][  T231] RSP: 0018:ffa0000000907a78 EFLAGS: 00010286
[   30.380514][  T231] RAX: 00000000ffffffa6 RBX: ff1100000c282580 RCX: 1ff4000000120f15
[   30.380711][  T231] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c28263c
[   30.380906][  T231] RBP: ff1100000bcfc000 R08: 1fe22000018504c9 R09: ff110000101dae80
[   30.381098][  T231] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   30.381290][  T231] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000bcfc000
[   30.381485][  T231] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   30.381714][  T231] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.381880][  T231] CR2: 00007fa0a8f22bc0 CR3: 000000000d8ff001 CR4: 0000000000771ef0
[   30.382073][  T231] PKRU: 55555554
[   30.382170][  T231] Call Trace:
[   30.382267][  T231]  <TASK>
[   30.382335][  T231]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   30.382466][  T231]  ? notifier_call_chain (kernel/notifier.c:85)
[   30.382594][  T231]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   30.382698][  T231]  register_netdevice (net/core/dev.c:11488)
[   30.382833][  T231]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   30.382992][  T231]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.383122][  T231]  register_netdev (net/core/dev.c:11552)
[   30.383251][  T231]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   30.383380][  T231]  ops_init (net/core/net_namespace.c:137)
[   30.383478][  T231]  setup_net (net/core/net_namespace.c:446)
[   30.383576][  T231]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   30.383707][  T231]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   30.383839][  T231]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   30.383971][  T231]  copy_net_ns (net/core/net_namespace.c:579)
[   30.384100][  T231]  create_new_namespaces (kernel/nsproxy.c:132)
[   30.384233][  T231]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   30.384360][  T231]  ksys_unshare (kernel/fork.c:3243)
[   30.384488][  T231]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   30.384616][  T231]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   30.384751][  T231]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.384879][  T231]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   30.385010][  T231]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.385139][  T231]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   30.385267][  T231]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   30.385396][  T231]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   30.385525][  T231]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   30.385656][  T231]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   30.385850][  T231]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   30.386011][  T231] RIP: 0033:0x7fa0a8f22bcb
[   30.386144][  T231] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   30.386603][  T231] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   30.386857][  T231] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   30.387046][  T231] RDX: 0000000000406540 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   30.387236][  T231] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   30.387426][  T231] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   30.387620][  T231] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   30.393320][  T231] ------------[ cut here ]------------
| [   30.393456][  T231] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/231
| [   30.393712][  T231] Modules linked in:
| [   30.394103][  T231] Tainted: [W]=WARN
[   30.394200][  T231] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.394362][  T231] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.394529][  T231] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   30.394994][  T231] RSP: 0018:ffa0000000907a68 EFLAGS: 00010286
[   30.395157][  T231] RAX: 00000000ffffffa6 RBX: ff1100000c114c80 RCX: 1ff4000000120f13
[   30.395350][  T231] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c114d3c
[   30.395540][  T231] RBP: ff1100000f249000 R08: 1fe22000018229a9 R09: ff110000101dae80
[   30.395742][  T231] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   30.395932][  T231] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f249000
[   30.396122][  T231] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   30.396348][  T231] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.396507][  T231] CR2: 00007fa0a8f22bc0 CR3: 000000000d8ff001 CR4: 0000000000771ef0
[   30.396705][  T231] PKRU: 55555554
[   30.396805][  T231] Call Trace:
[   30.396900][  T231]  <TASK>
[   30.396966][  T231]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   30.397095][  T231]  ? notifier_call_chain (kernel/notifier.c:85)
[   30.397224][  T231]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   30.397322][  T231]  register_netdevice (net/core/dev.c:11488)
[   30.397453][  T231]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   30.397615][  T231]  register_netdev (net/core/dev.c:11552)
[   30.397748][  T231]  sit_init_net (net/ipv6/sit.c:1860)
[   30.397878][  T231]  ops_init (net/core/net_namespace.c:137)
[   30.397975][  T231]  setup_net (net/core/net_namespace.c:446)
[   30.398071][  T231]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   30.398198][  T231]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   30.398326][  T231]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   30.398457][  T231]  copy_net_ns (net/core/net_namespace.c:579)
[   30.398586][  T231]  create_new_namespaces (kernel/nsproxy.c:132)
[   30.398723][  T231]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   30.398857][  T231]  ksys_unshare (kernel/fork.c:3243)
[   30.398984][  T231]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   30.399112][  T231]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   30.399240][  T231]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.399370][  T231]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   30.399499][  T231]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.399626][  T231]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   30.399762][  T231]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   30.399890][  T231]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   30.400016][  T231]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   30.400143][  T231]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   30.400270][  T231]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   30.400430][  T231] RIP: 0033:0x7fa0a8f22bcb
[   30.400562][  T231] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   30.401024][  T231] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   30.401216][  T231] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   30.401407][  T231] RDX: 0000000000406540 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   30.401596][  T231] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   30.401792][  T231] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   30.401983][  T231] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   30.406519][  T231] ------------[ cut here ]------------
| [   30.406656][  T231] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/231
| [   30.407406][  T231] Modules linked in:
| [   30.407858][  T231] Tainted: [W]=WARN
[   30.407956][  T231] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.408119][  T231] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.408287][  T231] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   30.408806][  T231] RSP: 0018:ffa0000000907a78 EFLAGS: 00010286
[   30.408969][  T231] RAX: 00000000ffffffa6 RBX: ff1100000ce1c580 RCX: 1ff4000000120f15
[   30.409216][  T231] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ce1c63c
[   30.409411][  T231] RBP: ff11000005111000 R08: 1fe22000019c38c9 R09: ff110000101dae80
[   30.409603][  T231] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   30.409855][  T231] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000005111000
[   30.410050][  T231] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   30.410278][  T231] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.410441][  T231] CR2: 00007fa0a8f22bc0 CR3: 000000000d8ff001 CR4: 0000000000771ef0
[   30.410638][  T231] PKRU: 55555554
[   30.410788][  T231] Call Trace:
[   30.410886][  T231]  <TASK>
[   30.410953][  T231]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   30.411083][  T231]  ? notifier_call_chain (kernel/notifier.c:85)
[   30.411211][  T231]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   30.411309][  T231]  register_netdevice (net/core/dev.c:11488)
[   30.411439][  T231]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   30.411598][  T231]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.411789][  T231]  register_netdev (net/core/dev.c:11552)
[   30.411918][  T231]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   30.412046][  T231]  ops_init (net/core/net_namespace.c:137)
[   30.412145][  T231]  setup_net (net/core/net_namespace.c:446)
[   30.412242][  T231]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   30.412370][  T231]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   30.412498][  T231]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   30.412629][  T231]  copy_net_ns (net/core/net_namespace.c:579)
[   30.412817][  T231]  create_new_namespaces (kernel/nsproxy.c:132)
[   30.412950][  T231]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   30.413080][  T231]  ksys_unshare (kernel/fork.c:3243)
[   30.413207][  T231]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   30.413335][  T231]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   30.413462][  T231]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.413592][  T231]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   30.413725][  T231]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.413909][  T231]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   30.414040][  T231]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   30.414166][  T231]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   30.414294][  T231]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   30.414421][  T231]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   30.414550][  T231]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   30.414712][  T231] RIP: 0033:0x7fa0a8f22bcb
[   30.414904][  T231] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   30.415365][  T231] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   30.415558][  T231] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   30.415809][  T231] RDX: 0000000000406540 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   30.416003][  T231] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   30.416195][  T231] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   30.416388][  T231] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   30.419599][   T12] ------------[ cut here ]------------
| [   30.419780][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   30.420057][   T12] Modules linked in:
| [   30.420504][   T12] Tainted: [W]=WARN
[   30.420644][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.420848][   T12] Workqueue: netns cleanup_net
[   30.421017][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.421212][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   30.421677][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   30.421891][   T12] RAX: 00000000ffffffa6 RBX: ff11000004bd78c0 RCX: 1ff4000000018eed
[   30.422109][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000004bd797c
[   30.422331][   T12] RBP: ff1100000fdb4000 R08: 1fe220000097af31 R09: ff11000001aed1d0
[   30.422551][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   30.422841][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   30.423079][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   30.423328][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.423520][   T12] CR2: 00007fa0a8f22bc0 CR3: 0000000044d4d005 CR4: 0000000000771ef0
[   30.423760][   T12] PKRU: 55555554
[   30.423891][   T12] Call Trace:
[   30.424029][   T12]  <TASK>
[   30.424135][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   30.424328][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   30.424520][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   30.424693][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   30.424871][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   30.425034][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   30.425198][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   30.425362][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   30.425528][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   30.425698][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.425880][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   30.426045][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   30.426206][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   30.426372][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   30.426535][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.426708][   T12]  process_one_work (kernel/workqueue.c:3314)
[   30.426888][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   30.427053][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   30.427222][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   30.427390][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   30.427553][   T12]  kthread (kernel/kthread.c:436)
[   30.427697][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   30.427901][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   30.428065][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   30.428228][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   30.428438][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   30.428610][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   30.428812][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   30.431539][   T12] ------------[ cut here ]------------
| [   30.431706][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   30.432181][   T12] Modules linked in:
| [   30.432812][   T12] Tainted: [W]=WARN
[   30.432952][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.433163][   T12] Workqueue: netns cleanup_net
[   30.433342][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.433561][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   30.434075][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   30.434293][   T12] RAX: 00000000ffffffa6 RBX: ff11000009850580 RCX: 1ff4000000018eed
[   30.434530][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000985063c
[   30.434774][   T12] RBP: ff1100000f881000 R08: 1fe220000130a0c9 R09: ff11000001aed1d0
[   30.434993][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   30.435212][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   30.435434][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   30.435687][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.435893][   T12] CR2: 00007fa0a8f22bc0 CR3: 0000000044d4d005 CR4: 0000000000771ef0
[   30.436112][   T12] PKRU: 55555554
[   30.436243][   T12] Call Trace:
[   30.436376][   T12]  <TASK>
[   30.436482][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   30.436684][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   30.436888][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   30.437063][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   30.437228][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   30.437398][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   30.437572][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   30.437764][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   30.437932][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   30.438119][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.438301][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   30.438478][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   30.438649][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   30.438835][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   30.438998][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.439162][   T12]  process_one_work (kernel/workqueue.c:3314)
[   30.439329][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   30.439491][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   30.439665][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   30.439845][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   30.440009][   T12]  kthread (kernel/kthread.c:436)
[   30.440144][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   30.440334][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   30.440499][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   30.440673][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   30.440896][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   30.441075][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   30.441253][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   30.443876][   T12] ------------[ cut here ]------------
| [   30.444041][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   30.444321][   T12] Modules linked in:
| [   30.445063][   T12] Tainted: [W]=WARN
[   30.445241][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.445479][   T12] Workqueue: netns cleanup_net
[   30.445698][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.445954][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   30.446499][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   30.446767][   T12] RAX: 00000000ffffffa6 RBX: ff11000009642c80 RCX: 1ff4000000018eed
[   30.447048][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009642d3c
[   30.447333][   T12] RBP: ff1100000eab4000 R08: 1fe22000012c85a9 R09: ff11000001aed1d0
[   30.447606][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   30.447889][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   30.448158][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   30.448448][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.448728][   T12] CR2: 00007fa0a8f22bc0 CR3: 0000000044d4d005 CR4: 0000000000771ef0
[   30.449053][   T12] PKRU: 55555554
[   30.449231][   T12] Call Trace:
[   30.449406][   T12]  <TASK>
[   30.449553][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   30.449813][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   30.450049][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   30.450281][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   30.450530][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   30.450697][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   30.450872][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   30.451037][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   30.451202][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   30.451362][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.451529][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   30.451700][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   30.451871][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   30.452036][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   30.452200][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.452363][   T12]  process_one_work (kernel/workqueue.c:3314)
[   30.452530][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   30.452698][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   30.452877][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   30.453044][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   30.453206][   T12]  kthread (kernel/kthread.c:436)
[   30.453339][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   30.453531][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   30.453702][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   30.453874][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   30.454065][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   30.454227][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   30.454389][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   30.456754][   T12] ------------[ cut here ]------------
| [   30.456911][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   30.457179][   T12] Modules linked in:
| [   30.457617][   T12] Tainted: [W]=WARN
[   30.458152][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.458431][   T12] Workqueue: netns cleanup_net
[   30.458695][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.458998][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   30.459541][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   30.459794][   T12] RAX: 00000000ffffffa6 RBX: ff11000008f83c40 RCX: 1ff4000000018eed
[   30.460054][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000008f83cfc
[   30.460326][   T12] RBP: ff1100000eaac000 R08: 1fe22000011f07a1 R09: ff11000001aed1d0
[   30.460586][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   30.460869][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   30.461130][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   30.461424][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.461665][   T12] CR2: 00007fa0a8f22bc0 CR3: 0000000044d4d005 CR4: 0000000000771ef0
[   30.461942][   T12] PKRU: 55555554
[   30.462117][   T12] Call Trace:
[   30.462291][   T12]  <TASK>
[   30.462440][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   30.462688][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   30.462935][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   30.463141][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   30.463350][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   30.463556][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   30.463785][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   30.463997][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   30.464205][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   30.464413][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.464624][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   30.464853][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   30.465057][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   30.465266][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   30.465472][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.465686][   T12]  process_one_work (kernel/workqueue.c:3314)
[   30.465910][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   30.466142][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   30.466391][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   30.466670][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   30.466933][   T12]  kthread (kernel/kthread.c:436)
[   30.467158][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   30.467436][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   30.467695][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   30.467962][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   30.468235][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   30.468424][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   30.468586][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   30.470961][   T12] ------------[ cut here ]------------
| [   30.471091][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   30.471317][   T12] Modules linked in:
| [   30.471677][   T12] Tainted: [W]=WARN
[   30.471821][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.471965][   T12] Workqueue: netns cleanup_net
[   30.472084][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.472243][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   30.472656][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   30.472805][   T12] RAX: 00000000ffffffa6 RBX: ff1100000937a200 RCX: 1ff4000000018eed
[   30.472975][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000937a2bc
[   30.473144][   T12] RBP: ff1100000ea74000 R08: 1fe220000126f459 R09: ff11000001aed1d0
[   30.473315][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   30.473490][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   30.473666][   T12] FS:  0000000000000000(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   30.473873][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.474022][   T12] CR2: 00007fa0a901cb20 CR3: 00000000108d9002 CR4: 0000000000771ef0
[   30.474193][   T12] PKRU: 55555554
[   30.474279][   T12] Call Trace:
[   30.474365][   T12]  <TASK>
[   30.474425][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   30.474571][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   30.474718][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   30.474839][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   30.474955][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   30.475070][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   30.475189][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   30.475305][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   30.475422][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   30.475535][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.475656][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   30.475776][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   30.475892][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   30.476007][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   30.476124][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.476240][   T12]  process_one_work (kernel/workqueue.c:3314)
[   30.476362][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   30.476475][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   30.476598][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   30.476722][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   30.476842][   T12]  kthread (kernel/kthread.c:436)
[   30.476927][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   30.477069][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   30.477183][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   30.477297][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   30.477444][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   30.477560][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   30.477679][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   30.490466][  T233] ------------[ cut here ]------------
| [   30.490612][  T233] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: scm_rights/233
| [   30.490885][  T233] Modules linked in:
| [   30.491284][  T233] Tainted: [W]=WARN
[   30.491383][  T233] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.491547][  T233] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.491722][  T233] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   30.492190][  T233] RSP: 0018:ffa0000000937a80 EFLAGS: 00010286
[   30.492354][  T233] RAX: 00000000ffffffa6 RBX: ff1100000d9b43c0 RCX: 1ff4000000126f16
[   30.492547][  T233] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d9b447c
[   30.492747][  T233] RBP: ff1100000ffbc000 R08: 1fe2200001b36891 R09: ff1100000a945180
[   30.492941][  T233] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   30.493134][  T233] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000ffbc000
[   30.493330][  T233] FS:  00007fa0a8e27740(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   30.493556][  T233] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.493724][  T233] CR2: 00007fa0a8f22bc0 CR3: 000000000274c005 CR4: 0000000000771ef0
[   30.493926][  T233] PKRU: 55555554
[   30.494022][  T233] Call Trace:
[   30.494118][  T233]  <TASK>
[   30.494186][  T233]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   30.494317][  T233]  ? notifier_call_chain (kernel/notifier.c:85)
[   30.494447][  T233]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   30.494546][  T233]  register_netdevice (net/core/dev.c:11488)
[   30.494680][  T233]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   30.494848][  T233]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   30.494978][  T233]  register_netdev (net/core/dev.c:11552)
[   30.495107][  T233]  loopback_net_init (drivers/net/loopback.c:218)
[   30.495238][  T233]  ops_init (net/core/net_namespace.c:137)
[   30.495337][  T233]  setup_net (net/core/net_namespace.c:446)
[   30.495435][  T233]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   30.495564][  T233]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   30.495699][  T233]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   30.495838][  T233]  copy_net_ns (net/core/net_namespace.c:579)
[   30.495970][  T233]  create_new_namespaces (kernel/nsproxy.c:132)
[   30.496104][  T233]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   30.496234][  T233]  ksys_unshare (kernel/fork.c:3243)
[   30.496362][  T233]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   30.496490][  T233]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   30.496618][  T233]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.496756][  T233]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   30.496887][  T233]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.497016][  T233]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   30.497146][  T233]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   30.497274][  T233]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   30.497402][  T233]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   30.497531][  T233]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   30.497664][  T233]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   30.497831][  T233] RIP: 0033:0x7fa0a8f22bcb
[   30.497966][  T233] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   30.498428][  T233] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   30.498622][  T233] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   30.498823][  T233] RDX: 0000000000406580 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   30.499013][  T233] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   30.499206][  T233] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   30.499397][  T233] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   30.503509][  T233] ------------[ cut here ]------------
| [   30.503644][  T233] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: scm_rights/233
| [   30.503905][  T233] Modules linked in:
| [   30.504291][  T233] Tainted: [W]=WARN
[   30.504388][  T233] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.504549][  T233] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.504723][  T233] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   30.505181][  T233] RSP: 0018:ffa0000000937918 EFLAGS: 00010286
[   30.505340][  T233] RAX: 00000000ffffffa6 RBX: ff11000002856900 RCX: 1ff4000000126ee9
[   30.505530][  T233] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000028569bc
[   30.505729][  T233] RBP: ff11000008e49000 R08: 1fe220000050ad39 R09: ff1100000a945180
[   30.505926][  T233] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   30.506117][  T233] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008e49000
[   30.506308][  T233] FS:  00007fa0a8e27740(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   30.506531][  T233] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.506697][  T233] CR2: 00007fa0a8f22bc0 CR3: 000000000274c005 CR4: 0000000000771ef0
[   30.506924][  T233] PKRU: 55555554
[   30.507021][  T233] Call Trace:
[   30.507116][  T233]  <TASK>
[   30.507182][  T233]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   30.507311][  T233]  ? notifier_call_chain (kernel/notifier.c:85)
[   30.507439][  T233]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   30.507537][  T233]  register_netdevice (net/core/dev.c:11488)
[   30.507672][  T233]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   30.507839][  T233]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   30.507969][  T233]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   30.508096][  T233]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   30.508225][  T233]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   30.508353][  T233]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   30.508482][  T233]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   30.508613][  T233]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   30.508749][  T233]  ops_init (net/core/net_namespace.c:137)
[   30.508847][  T233]  setup_net (net/core/net_namespace.c:446)
[   30.508945][  T233]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   30.509071][  T233]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   30.509200][  T233]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   30.509329][  T233]  copy_net_ns (net/core/net_namespace.c:579)
[   30.509460][  T233]  create_new_namespaces (kernel/nsproxy.c:132)
[   30.509591][  T233]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   30.509723][  T233]  ksys_unshare (kernel/fork.c:3243)
[   30.509856][  T233]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   30.509983][  T233]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   30.510112][  T233]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.510240][  T233]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   30.510369][  T233]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.510500][  T233]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   30.510627][  T233]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   30.510766][  T233]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   30.510895][  T233]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   30.511024][  T233]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   30.511154][  T233]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   30.511313][  T233] RIP: 0033:0x7fa0a8f22bcb
[   30.511447][  T233] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   30.511909][  T233] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   30.512105][  T233] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   30.512296][  T233] RDX: 0000000000406580 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   30.512488][  T233] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   30.512685][  T233] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   30.512885][  T233] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   30.521418][  T233] ------------[ cut here ]------------
| [   30.521553][  T233] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: scm_rights/233
| [   30.521819][  T233] Modules linked in:
| [   30.522214][  T233] Tainted: [W]=WARN
[   30.522312][  T233] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.522475][  T233] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.522648][  T233] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   30.523117][  T233] RSP: 0018:ffa00000009378f8 EFLAGS: 00010286
[   30.523282][  T233] RAX: 00000000ffffffa6 RBX: ff11000002858ac0 RCX: 1ff4000000126ee5
[   30.523479][  T233] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000002858b7c
[   30.523678][  T233] RBP: ff1100000e8e4000 R08: 1fe220000050b171 R09: ff1100000a945180
[   30.523879][  T233] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   30.524073][  T233] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e8e4000
[   30.524269][  T233] FS:  00007fa0a8e27740(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   30.524495][  T233] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.524660][  T233] CR2: 00007fa0a8f22bc0 CR3: 000000000274c005 CR4: 0000000000771ef0
[   30.524862][  T233] PKRU: 55555554
[   30.524958][  T233] Call Trace:
[   30.525055][  T233]  <TASK>
[   30.525122][  T233]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   30.525252][  T233]  ? notifier_call_chain (kernel/notifier.c:85)
[   30.525381][  T233]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   30.525482][  T233]  register_netdevice (net/core/dev.c:11488)
[   30.525613][  T233]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   30.525785][  T233]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   30.525920][  T233]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   30.526049][  T233]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   30.526177][  T233]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   30.526308][  T233]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   30.526439][  T233]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   30.526571][  T233]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   30.526706][  T233]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   30.526843][  T233]  vti_init_net (net/ipv4/ip_vti.c:517)
[   30.526975][  T233]  ops_init (net/core/net_namespace.c:137)
[   30.527074][  T233]  setup_net (net/core/net_namespace.c:446)
[   30.527172][  T233]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   30.527301][  T233]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   30.527431][  T233]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   30.527563][  T233]  copy_net_ns (net/core/net_namespace.c:579)
[   30.527697][  T233]  create_new_namespaces (kernel/nsproxy.c:132)
[   30.527834][  T233]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   30.527965][  T233]  ksys_unshare (kernel/fork.c:3243)
[   30.528093][  T233]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   30.528222][  T233]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   30.528351][  T233]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.528483][  T233]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   30.528613][  T233]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.528750][  T233]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   30.528880][  T233]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   30.529008][  T233]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   30.529137][  T233]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   30.529265][  T233]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   30.529394][  T233]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   30.529555][  T233] RIP: 0033:0x7fa0a8f22bcb
[   30.529692][  T233] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   30.530154][  T233] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   30.530349][  T233] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   30.530541][  T233] RDX: 0000000000406580 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   30.530742][  T233] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   30.530935][  T233] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   30.531127][  T233] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   30.535193][  T233] ------------[ cut here ]------------
| [   30.535328][  T233] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: scm_rights/233
| [   30.535583][  T233] Modules linked in:
| [   30.535981][  T233] Tainted: [W]=WARN
[   30.536078][  T233] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.536238][  T233] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.536407][  T233] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   30.536869][  T233] RSP: 0018:ffa0000000937a78 EFLAGS: 00010286
[   30.537031][  T233] RAX: 00000000ffffffa6 RBX: ff110000096c2e40 RCX: 1ff4000000126f15
[   30.537225][  T233] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000096c2efc
[   30.537418][  T233] RBP: ff1100000f8c1000 R08: 1fe22000012d85e1 R09: ff1100000a945180
[   30.537609][  T233] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   30.537808][  T233] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f8c1000
[   30.538003][  T233] FS:  00007fa0a8e27740(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   30.538228][  T233] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.538390][  T233] CR2: 00007fa0a8f22bc0 CR3: 000000000274c005 CR4: 0000000000771ef0
[   30.538583][  T233] PKRU: 55555554
[   30.538681][  T233] Call Trace:
[   30.538781][  T233]  <TASK>
[   30.538846][  T233]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   30.538976][  T233]  ? notifier_call_chain (kernel/notifier.c:85)
[   30.539105][  T233]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   30.539203][  T233]  register_netdevice (net/core/dev.c:11488)
[   30.539333][  T233]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   30.539493][  T233]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.539625][  T233]  register_netdev (net/core/dev.c:11552)
[   30.539762][  T233]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   30.539893][  T233]  ops_init (net/core/net_namespace.c:137)
[   30.539991][  T233]  setup_net (net/core/net_namespace.c:446)
[   30.540089][  T233]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   30.540217][  T233]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   30.540345][  T233]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   30.540476][  T233]  copy_net_ns (net/core/net_namespace.c:579)
[   30.540607][  T233]  create_new_namespaces (kernel/nsproxy.c:132)
[   30.540748][  T233]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   30.540879][  T233]  ksys_unshare (kernel/fork.c:3243)
[   30.541007][  T233]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   30.541135][  T233]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   30.541265][  T233]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.541394][  T233]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   30.541524][  T233]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.541658][  T233]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   30.541792][  T233]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   30.541920][  T233]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   30.542047][  T233]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   30.542173][  T233]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   30.542301][  T233]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   30.542461][  T233] RIP: 0033:0x7fa0a8f22bcb
[   30.542594][  T233] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   30.543057][  T233] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   30.543250][  T233] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   30.543440][  T233] RDX: 0000000000406580 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   30.543632][  T233] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   30.543832][  T233] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   30.544022][  T233] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   30.545972][   T12] ------------[ cut here ]------------
| [   30.546092][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   30.546330][   T12] Modules linked in:
| [   30.546694][   T12] Tainted: [W]=WARN
[   30.546789][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.546937][   T12] Workqueue: netns cleanup_net
[   30.547059][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.547212][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   30.547628][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   30.547785][   T12] RAX: 00000000ffffffa6 RBX: ff11000009850200 RCX: 1ff4000000018ed5
[   30.548036][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000098502bc
[   30.548211][   T12] RBP: ff1100000f81c000 R08: 1fe220000130a059 R09: ff11000001aed1d0
[   30.548388][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   30.548644][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   30.548825][   T12] FS:  0000000000000000(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   30.549103][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.549248][   T12] CR2: 00007fa0a901cb20 CR3: 00000000108d9002 CR4: 0000000000771ef0
[   30.549424][   T12] PKRU: 55555554
[   30.549585][   T12] Call Trace:
[   30.549677][   T12]  <TASK>
[   30.549743][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   30.549892][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   30.550042][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   30.550234][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   30.550352][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   30.550468][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   30.550585][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   30.550786][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   30.550905][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   30.551019][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.551140][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   30.551330][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   30.551446][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   30.551565][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   30.551686][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.551884][   T12]  process_one_work (kernel/workqueue.c:3314)
[   30.552004][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   30.552122][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   30.552243][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   30.552436][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   30.552552][   T12]  kthread (kernel/kthread.c:436)
[   30.552644][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   30.552868][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   30.552985][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   30.553103][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   30.553248][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   30.553437][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   30.553555][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   30.560463][  T233] ------------[ cut here ]------------
| [   30.560646][  T233] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/233
| [   30.560970][  T233] Modules linked in:
| [   30.561453][  T233] Tainted: [W]=WARN
[   30.561599][  T233] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.561824][  T233] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.562048][  T233] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   30.562552][  T233] RSP: 0018:ffa0000000937a68 EFLAGS: 00010286
[   30.562782][  T233] RAX: 00000000ffffffa6 RBX: ff110000054ff000 RCX: 1ff4000000126f13
[   30.563021][  T233] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000054ff0bc
[   30.563260][  T233] RBP: ff1100000f299000 R08: 1fe2200000a9fe19 R09: ff1100000a945180
[   30.563499][  T233] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   30.563756][  T233] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f299000
[   30.563997][  T233] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   30.564268][  T233] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.564477][  T233] CR2: 00007fa0a8f22bc0 CR3: 000000000274c001 CR4: 0000000000771ef0
[   30.564727][  T233] PKRU: 55555554
[   30.564886][  T233] Call Trace:
[   30.565029][  T233]  <TASK>
[   30.565142][  T233]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   30.565319][  T233]  ? notifier_call_chain (kernel/notifier.c:85)
[   30.565495][  T233]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   30.565647][  T233]  register_netdevice (net/core/dev.c:11488)
[   30.565841][  T233]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   30.566053][  T233]  register_netdev (net/core/dev.c:11552)
[   30.566228][  T233]  sit_init_net (net/ipv6/sit.c:1860)
[   30.566407][  T233]  ops_init (net/core/net_namespace.c:137)
[   30.566553][  T233]  setup_net (net/core/net_namespace.c:446)
[   30.566708][  T233]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   30.566897][  T233]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   30.567072][  T233]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   30.567252][  T233]  copy_net_ns (net/core/net_namespace.c:579)
[   30.567429][  T233]  create_new_namespaces (kernel/nsproxy.c:132)
[   30.567608][  T233]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   30.567803][  T233]  ksys_unshare (kernel/fork.c:3243)
[   30.567978][  T233]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   30.568153][  T233]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   30.568327][  T233]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.568506][  T233]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   30.568689][  T233]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.568882][  T233]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   30.569056][  T233]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   30.569230][  T233]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   30.569405][  T233]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   30.569579][  T233]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   30.569776][  T233]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   30.569986][  T233] RIP: 0033:0x7fa0a8f22bcb
[   30.570166][  T233] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   30.570671][  T233] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   30.570923][  T233] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   30.571163][  T233] RDX: 0000000000406580 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   30.571399][  T233] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   30.571643][  T233] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   30.571893][  T233] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   30.584359][  T233] ------------[ cut here ]------------
| [   30.584540][  T233] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/233
| [   30.584986][  T233] Modules linked in:
| [   30.585475][  T233] Tainted: [W]=WARN
[   30.585621][  T233] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.585847][  T233] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.586066][  T233] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   30.586570][  T233] RSP: 0018:ffa0000000937a78 EFLAGS: 00010286
[   30.586800][  T233] RAX: 00000000ffffffa6 RBX: ff1100000285f540 RCX: 1ff4000000126f15
[   30.587042][  T233] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000285f5fc
[   30.587282][  T233] RBP: ff1100000e9c1000 R08: 1fe220000050bec1 R09: ff1100000a945180
[   30.587523][  T233] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   30.587782][  T233] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e9c1000
[   30.588028][  T233] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   30.588304][  T233] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.588514][  T233] CR2: 00007fa0a8f22bc0 CR3: 000000000274c001 CR4: 0000000000771ef0
[   30.588778][  T233] PKRU: 55555554
[   30.588923][  T233] Call Trace:
[   30.589069][  T233]  <TASK>
[   30.589183][  T233]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   30.589360][  T233]  ? notifier_call_chain (kernel/notifier.c:85)
[   30.589536][  T233]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   30.589684][  T233]  register_netdevice (net/core/dev.c:11488)
[   30.589879][  T233]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   30.590093][  T233]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.590274][  T233]  register_netdev (net/core/dev.c:11552)
[   30.590452][  T233]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   30.590630][  T233]  ops_init (net/core/net_namespace.c:137)
[   30.590799][  T233]  setup_net (net/core/net_namespace.c:446)
[   30.590945][  T233]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   30.591121][  T233]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   30.591299][  T233]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   30.591478][  T233]  copy_net_ns (net/core/net_namespace.c:579)
[   30.591662][  T233]  create_new_namespaces (kernel/nsproxy.c:132)
[   30.591853][  T233]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   30.592032][  T233]  ksys_unshare (kernel/fork.c:3243)
[   30.592208][  T233]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   30.592384][  T233]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   30.592559][  T233]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.592756][  T233]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   30.592934][  T233]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.593111][  T233]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   30.593285][  T233]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   30.593460][  T233]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   30.593646][  T233]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   30.593835][  T233]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   30.594012][  T233]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   30.594219][  T233] RIP: 0033:0x7fa0a8f22bcb
[   30.594400][  T233] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   30.594921][  T233] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   30.595161][  T233] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   30.595400][  T233] RDX: 0000000000406580 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   30.595644][  T233] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   30.595898][  T233] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   30.596135][  T233] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   30.615472][   T12] ------------[ cut here ]------------
| [   30.615601][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   30.615847][   T12] Modules linked in:
| [   30.616203][   T12] Tainted: [W]=WARN
[   30.616291][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.616439][   T12] Workqueue: netns cleanup_net
[   30.616563][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.616719][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   30.617135][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   30.617282][   T12] RAX: 00000000ffffffa6 RBX: ff110000051a8e40 RCX: 1ff4000000018eed
[   30.617454][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000051a8efc
[   30.617625][   T12] RBP: ff11000005111000 R08: 1fe2200000a351e1 R09: ff11000001aed1d0
[   30.617806][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   30.617977][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   30.618151][   T12] FS:  0000000000000000(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   30.618354][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.618498][   T12] CR2: 00007fa0a901cb20 CR3: 00000000108d9002 CR4: 0000000000771ef0
[   30.618678][   T12] PKRU: 55555554
[   30.618770][   T12] Call Trace:
[   30.618855][   T12]  <TASK>
[   30.618917][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   30.619065][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   30.619209][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   30.619329][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   30.619448][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   30.619563][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   30.619683][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   30.619805][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   30.619922][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   30.620036][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.620155][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   30.620275][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   30.620393][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   30.620512][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   30.620627][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.620755][   T12]  process_one_work (kernel/workqueue.c:3314)
[   30.620874][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   30.620990][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   30.621115][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   30.621236][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   30.621351][   T12]  kthread (kernel/kthread.c:436)
[   30.621439][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   30.621585][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   30.621705][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   30.621828][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   30.621972][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   30.622089][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   30.622205][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   30.624504][   T12] ------------[ cut here ]------------
| [   30.624620][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   30.624893][   T12] Modules linked in:
| [   30.625240][   T12] Tainted: [W]=WARN
[   30.625326][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.625472][   T12] Workqueue: netns cleanup_net
[   30.625598][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.625759][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   30.626181][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   30.626328][   T12] RAX: 00000000ffffffa6 RBX: ff110000051a98c0 RCX: 1ff4000000018eed
[   30.626501][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000051a997c
[   30.626676][   T12] RBP: ff1100000f249000 R08: 1fe2200000a35331 R09: ff11000001aed1d0
[   30.626854][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   30.627026][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   30.627201][   T12] FS:  0000000000000000(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   30.627401][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.627546][   T12] CR2: 00007fa0a901cb20 CR3: 00000000108d9002 CR4: 0000000000771ef0
[   30.627725][   T12] PKRU: 55555554
[   30.627816][   T12] Call Trace:
[   30.627906][   T12]  <TASK>
[   30.627966][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   30.628114][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   30.628258][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   30.628375][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   30.628492][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   30.628607][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   30.628728][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   30.628853][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   30.628971][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   30.629090][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.629209][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   30.629326][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   30.629442][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   30.629564][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   30.629688][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.629810][   T12]  process_one_work (kernel/workqueue.c:3314)
[   30.629933][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   30.630048][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   30.630168][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   30.630289][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   30.630405][   T12]  kthread (kernel/kthread.c:436)
[   30.630493][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   30.630643][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   30.630765][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   30.630884][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   30.631028][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   30.631149][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   30.631265][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   30.633367][   T12] ------------[ cut here ]------------
| [   30.633481][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   30.633713][   T12] Modules linked in:
| [   30.634072][   T12] Tainted: [W]=WARN
[   30.634159][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.634303][   T12] Workqueue: netns cleanup_net
[   30.634423][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.634574][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   30.635541][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   30.635696][   T12] RAX: 00000000ffffffa6 RBX: ff110000051a91c0 RCX: 1ff4000000018eed
[   30.635922][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000051a927c
[   30.636096][   T12] RBP: ff1100000bcfc000 R08: 1fe2200000a35251 R09: ff11000001aed1d0
[   30.636268][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   30.636439][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   30.636616][   T12] FS:  0000000000000000(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   30.636872][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.637018][   T12] CR2: 00007fa0a901cb20 CR3: 00000000108d9002 CR4: 0000000000771ef0
[   30.637192][   T12] PKRU: 55555554
[   30.637278][   T12] Call Trace:
[   30.637364][   T12]  <TASK>
[   30.637424][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   30.637576][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   30.637725][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   30.637888][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   30.638004][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   30.638124][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   30.638239][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   30.638356][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   30.638478][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   30.638594][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.638716][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   30.638878][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   30.638992][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   30.639107][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   30.639223][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.639344][   T12]  process_one_work (kernel/workqueue.c:3314)
[   30.639463][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   30.639578][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   30.639702][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   30.639868][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   30.639983][   T12]  kthread (kernel/kthread.c:436)
[   30.640069][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   30.640212][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   30.640331][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   30.640448][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   30.640592][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   30.640711][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   30.640872][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   30.643209][   T12] ------------[ cut here ]------------
| [   30.643322][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   30.643546][   T12] Modules linked in:
| [   30.643902][   T12] Tainted: [W]=WARN
[   30.643988][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.644136][   T12] Workqueue: netns cleanup_net
[   30.644259][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.644408][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   30.644932][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   30.645076][   T12] RAX: 00000000ffffffa6 RBX: ff110000051a8ac0 RCX: 1ff4000000018eed
[   30.645246][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000051a8b7c
[   30.645417][   T12] RBP: ff1100000da04000 R08: 1fe2200000a35171 R09: ff11000001aed1d0
[   30.645588][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   30.645850][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   30.646022][   T12] FS:  0000000000000000(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   30.646224][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.646370][   T12] CR2: 00007fa0a901cb20 CR3: 00000000108d9002 CR4: 0000000000771ef0
[   30.646543][   T12] PKRU: 55555554
[   30.646627][   T12] Call Trace:
[   30.646716][   T12]  <TASK>
[   30.646865][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   30.647101][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   30.647243][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   30.647360][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   30.647477][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   30.647591][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   30.647711][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   30.647915][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   30.648037][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   30.648151][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.648270][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   30.648385][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   30.648501][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   30.648617][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   30.648824][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.648941][   T12]  process_one_work (kernel/workqueue.c:3314)
[   30.649059][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   30.649176][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   30.649296][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   30.649418][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   30.649533][   T12]  kthread (kernel/kthread.c:436)
[   30.649620][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   30.649849][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   30.649969][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   30.650084][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   30.650228][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   30.650343][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   30.650458][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   30.658600][   T12] ------------[ cut here ]------------
| [   30.658747][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   30.658985][   T12] Modules linked in:
| [   30.659341][   T12] Tainted: [W]=WARN
[   30.659430][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.659577][   T12] Workqueue: netns cleanup_net
[   30.659701][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.659864][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   30.660290][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   30.660437][   T12] RAX: 00000000ffffffa6 RBX: ff110000092cda80 RCX: 1ff4000000018eed
[   30.660612][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000092cdb3c
[   30.660796][   T12] RBP: ff11000009b54000 R08: 1fe2200001259b69 R09: ff11000001aed1d0
[   30.660975][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   30.661147][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   30.661322][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   30.661527][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.661675][   T12] CR2: 00007fa0a8e9a0a0 CR3: 000000000e51b001 CR4: 0000000000771ef0
[   30.661856][   T12] PKRU: 55555554
[   30.661944][   T12] Call Trace:
[   30.662031][   T12]  <TASK>
[   30.662092][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   30.662243][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   30.662395][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   30.662515][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   30.662643][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   30.662765][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   30.662883][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   30.663000][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   30.663118][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   30.663234][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.663354][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   30.663471][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   30.663586][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   30.663709][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   30.663830][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.663950][   T12]  process_one_work (kernel/workqueue.c:3314)
[   30.664072][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   30.664188][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   30.664310][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   30.664432][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   30.664553][   T12]  kthread (kernel/kthread.c:436)
[   30.664644][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   30.664798][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   30.664915][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   30.665031][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   30.665177][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   30.665297][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   30.665414][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   30.683994][   T12] ------------[ cut here ]------------
| [   30.684121][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   30.684349][   T12] Modules linked in:
| [   30.684711][   T12] Tainted: [W]=WARN
[   30.684804][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.684954][   T12] Workqueue: netns cleanup_net
[   30.685075][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.685225][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   30.685654][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   30.685805][   T12] RAX: 00000000ffffffa6 RBX: ff110000092ccc80 RCX: 1ff4000000018ed5
[   30.685980][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000092ccd3c
[   30.686162][   T12] RBP: ff11000001ff1000 R08: 1fe22000012599a9 R09: ff11000001aed1d0
[   30.686339][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   30.686513][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   30.686691][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   30.686904][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.687050][   T12] CR2: 00007fa0a8e9a0a0 CR3: 000000000e51b001 CR4: 0000000000771ef0
[   30.687226][   T12] PKRU: 55555554
[   30.687314][   T12] Call Trace:
[   30.687401][   T12]  <TASK>
[   30.687463][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   30.687612][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   30.687773][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   30.687894][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   30.688011][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   30.688129][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   30.688251][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   30.688372][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   30.688493][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   30.688612][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.688741][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   30.688862][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   30.688981][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   30.689100][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   30.689218][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.689339][   T12]  process_one_work (kernel/workqueue.c:3314)
[   30.689465][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   30.689583][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   30.689711][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   30.689838][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   30.689957][   T12]  kthread (kernel/kthread.c:436)
[   30.690049][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   30.690196][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   30.690315][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   30.690434][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   30.690580][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   30.690702][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   30.690873][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   31.604166][   T12] ------------[ cut here ]------------
| [   31.604382][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   31.604713][   T12] Modules linked in:
| [   31.605212][   T12] Tainted: [W]=WARN
[   31.605350][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.605567][   T12] Workqueue: netns cleanup_net
[   31.605758][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   31.605994][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   31.606481][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   31.606695][   T12] RAX: 00000000ffffffa6 RBX: ff110000027303c0 RCX: 1ff4000000018eed
[   31.606938][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000273047c
[   31.607167][   T12] RBP: ff1100000e9c1000 R08: 1fe22000004e6091 R09: ff11000001aed1d0
[   31.607403][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   31.607625][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   31.607883][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   31.608146][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.608346][   T12] CR2: 00007fa0a8e21000 CR3: 0000000044d4d005 CR4: 0000000000771ef0
[   31.608582][   T12] PKRU: 55555554
[   31.608748][   T12] Call Trace:
[   31.608895][   T12]  <TASK>
[   31.609006][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   31.609223][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   31.609430][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   31.609612][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   31.609884][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   31.610095][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   31.610277][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   31.610441][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   31.610614][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   31.610809][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   31.610997][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   31.611174][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   31.611342][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   31.611520][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   31.611697][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.611875][   T12]  process_one_work (kernel/workqueue.c:3314)
[   31.612050][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   31.612217][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   31.612394][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   31.612569][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   31.612764][   T12]  kthread (kernel/kthread.c:436)
[   31.612912][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   31.613109][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   31.613288][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   31.613469][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   31.613678][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   31.613858][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   31.614034][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   31.616708][   T12] ------------[ cut here ]------------
| [   31.617632][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   31.618026][   T12] Modules linked in:
| [   31.618618][   T12] Tainted: [W]=WARN
[   31.618863][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.619091][   T12] Workqueue: netns cleanup_net
[   31.619254][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   31.619453][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   31.619926][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   31.620119][   T12] RAX: 00000000ffffffa6 RBX: ff11000002731e00 RCX: 1ff4000000018eed
[   31.620337][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000002731ebc
[   31.620554][   T12] RBP: ff1100000f299000 R08: 1fe22000004e63d9 R09: ff11000001aed1d0
[   31.620797][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   31.621013][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   31.621233][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   31.621482][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.621685][   T12] CR2: 00007fa0a8e21000 CR3: 0000000044d4d005 CR4: 0000000000771ef0
[   31.621918][   T12] PKRU: 55555554
[   31.622051][   T12] Call Trace:
[   31.622184][   T12]  <TASK>
[   31.622292][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   31.622487][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   31.622683][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   31.622860][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   31.623029][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   31.623194][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   31.623358][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   31.623525][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   31.623699][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   31.623870][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   31.624036][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   31.624200][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   31.624364][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   31.624529][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   31.624699][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.624874][   T12]  process_one_work (kernel/workqueue.c:3314)
[   31.625043][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   31.625206][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   31.625373][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   31.625545][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   31.625714][   T12]  kthread (kernel/kthread.c:436)
[   31.625862][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   31.626053][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   31.626218][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   31.626383][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   31.626576][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   31.626764][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   31.626930][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   31.629517][   T12] ------------[ cut here ]------------
| [   31.629651][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   31.629900][   T12] Modules linked in:
| [   31.630258][   T12] Tainted: [W]=WARN
[   31.630345][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.630493][   T12] Workqueue: netns cleanup_net
[   31.630614][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   31.630778][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   31.631191][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   31.631339][   T12] RAX: 00000000ffffffa6 RBX: ff1100000960fc40 RCX: 1ff4000000018eed
[   31.631515][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000960fcfc
[   31.631694][   T12] RBP: ff1100000f8c1000 R08: 1fe22000012c1fa1 R09: ff11000001aed1d0
[   31.631876][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   31.632051][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   31.632228][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   31.632437][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.632582][   T12] CR2: 00007fa0a8f22bc0 CR3: 0000000044d4d001 CR4: 0000000000771ef0
[   31.632766][   T12] PKRU: 55555554
[   31.632856][   T12] Call Trace:
[   31.632943][   T12]  <TASK>
[   31.633004][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   31.633153][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   31.633296][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   31.633412][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   31.633534][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   31.633658][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   31.633785][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   31.633902][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   31.634020][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   31.634137][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   31.634258][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   31.634374][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   31.634490][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   31.634607][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   31.634728][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.634855][   T12]  process_one_work (kernel/workqueue.c:3314)
[   31.634976][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   31.635091][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   31.635212][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   31.635344][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   31.635467][   T12]  kthread (kernel/kthread.c:436)
[   31.635555][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   31.635716][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   31.635838][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   31.635955][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   31.636100][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   31.636219][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   31.636335][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   31.645205][   T12] ------------[ cut here ]------------
| [   31.645327][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   31.645553][   T12] Modules linked in:
| [   31.645920][   T12] Tainted: [W]=WARN
[   31.646009][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.646155][   T12] Workqueue: netns cleanup_net
[   31.646276][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   31.646437][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   31.646862][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   31.647014][   T12] RAX: 00000000ffffffa6 RBX: ff1100000960f8c0 RCX: 1ff4000000018eed
[   31.647188][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000960f97c
[   31.647363][   T12] RBP: ff1100000e8e4000 R08: 1fe22000012c1f31 R09: ff11000001aed1d0
[   31.647545][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   31.647724][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   31.647906][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   31.648109][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.648256][   T12] CR2: 00007fa0a8f22bc0 CR3: 0000000044d4d001 CR4: 0000000000771ef0
[   31.648434][   T12] PKRU: 55555554
[   31.648520][   T12] Call Trace:
[   31.648606][   T12]  <TASK>
[   31.648671][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   31.648827][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   31.648972][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   31.649095][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   31.649219][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   31.649337][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   31.649455][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   31.649572][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   31.649695][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   31.649817][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   31.649937][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   31.650060][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   31.650174][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   31.650297][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   31.650414][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.650531][   T12]  process_one_work (kernel/workqueue.c:3314)
[   31.650662][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   31.650784][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   31.650904][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   31.651027][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   31.651152][   T12]  kthread (kernel/kthread.c:436)
[   31.651241][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   31.651387][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   31.651506][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   31.651622][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   31.651776][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   31.651896][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   31.652013][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   31.653949][   T12] ------------[ cut here ]------------
| [   31.654062][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   31.654288][   T12] Modules linked in:
| [   31.654641][   T12] Tainted: [W]=WARN
[   31.654728][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.654881][   T12] Workqueue: netns cleanup_net
[   31.655003][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   31.655154][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   31.655566][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   31.655716][   T12] RAX: 00000000ffffffa6 RBX: ff1100000d1f0200 RCX: 1ff4000000018eed
[   31.655895][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d1f02bc
[   31.656067][   T12] RBP: ff11000008e49000 R08: 1fe2200001a3e059 R09: ff11000001aed1d0
[   31.656240][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   31.656412][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   31.656587][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   31.656799][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.656945][   T12] CR2: 00007fa0a8f22bc0 CR3: 0000000044d4d001 CR4: 0000000000771ef0
[   31.657119][   T12] PKRU: 55555554
[   31.657207][   T12] Call Trace:
[   31.657294][   T12]  <TASK>
[   31.657357][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   31.657511][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   31.657660][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   31.657786][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   31.657905][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   31.658026][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   31.658143][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   31.658263][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   31.658382][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   31.658500][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   31.658619][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   31.658744][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   31.658860][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   31.658977][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   31.659093][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.659286][   T12]  process_one_work (kernel/workqueue.c:3314)
[   31.659406][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   31.659527][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   31.659652][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   31.659850][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   31.659967][   T12]  kthread (kernel/kthread.c:436)
[   31.660055][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   31.660200][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   31.660391][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   31.660509][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   31.660659][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   31.660786][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   31.660976][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   31.675575][  T235] ------------[ cut here ]------------
| [   31.675731][  T235] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/235
| [   31.675995][  T235] Modules linked in:
| [   31.676399][  T235] Tainted: [W]=WARN
[   31.676499][  T235] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.676667][  T235] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   31.676844][  T235] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   31.677311][  T235] RSP: 0018:ffa0000000957a80 EFLAGS: 00010286
[   31.677476][  T235] RAX: 00000000ffffffa6 RBX: ff1100000b6178c0 RCX: 1ff400000012af16
[   31.677678][  T235] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b61797c
[   31.677876][  T235] RBP: ff1100000c4fc000 R08: 1fe22000016c2f31 R09: ff1100000c1aae80
[   31.678072][  T235] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   31.678267][  T235] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000c4fc000
[   31.678463][  T235] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   31.678697][  T235] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.678867][  T235] CR2: 00007fa0a8f22bc0 CR3: 000000000c1a0003 CR4: 0000000000771ef0
[   31.679063][  T235] PKRU: 55555554
[   31.679162][  T235] Call Trace:
[   31.679262][  T235]  <TASK>
[   31.679330][  T235]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   31.679463][  T235]  ? notifier_call_chain (kernel/notifier.c:85)
[   31.679594][  T235]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   31.679699][  T235]  register_netdevice (net/core/dev.c:11488)
[   31.679836][  T235]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   31.680000][  T235]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   31.680138][  T235]  register_netdev (net/core/dev.c:11552)
[   31.680269][  T235]  loopback_net_init (drivers/net/loopback.c:218)
[   31.680401][  T235]  ops_init (net/core/net_namespace.c:137)
[   31.680501][  T235]  setup_net (net/core/net_namespace.c:446)
[   31.680600][  T235]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   31.680739][  T235]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   31.680873][  T235]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   31.681006][  T235]  copy_net_ns (net/core/net_namespace.c:579)
[   31.681136][  T235]  create_new_namespaces (kernel/nsproxy.c:132)
[   31.681268][  T235]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   31.681399][  T235]  ksys_unshare (kernel/fork.c:3243)
[   31.681531][  T235]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   31.681666][  T235]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   31.681801][  T235]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   31.681932][  T235]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   31.682062][  T235]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.682194][  T235]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   31.682324][  T235]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   31.682456][  T235]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   31.682586][  T235]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   31.682721][  T235]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   31.682859][  T235]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   31.683021][  T235] RIP: 0033:0x7fa0a8f22bcb
[   31.683161][  T235] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   31.683630][  T235] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   31.683833][  T235] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   31.684026][  T235] RDX: 0000000000406580 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   31.684219][  T235] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   31.684412][  T235] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   31.684606][  T235] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   31.686493][   T12] ------------[ cut here ]------------
| [   31.686615][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   31.686858][   T12] Modules linked in:
| [   31.687216][   T12] Tainted: [W]=WARN
[   31.687305][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.687451][   T12] Workqueue: netns cleanup_net
[   31.687574][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   31.687741][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   31.688165][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   31.688318][   T12] RAX: 00000000ffffffa6 RBX: ff1100000b6171c0 RCX: 1ff4000000018ed5
[   31.688495][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b61727c
[   31.688676][   T12] RBP: ff1100000ffbc000 R08: 1fe22000016c2e51 R09: ff11000001aed1d0
[   31.688916][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   31.689095][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   31.689284][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   31.689493][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.689645][   T12] CR2: 00007fa0a8f22bc0 CR3: 0000000044d4d001 CR4: 0000000000771ef0
[   31.689878][   T12] PKRU: 55555554
[   31.689966][   T12] Call Trace:
[   31.690056][   T12]  <TASK>
[   31.690118][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   31.690273][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   31.690470][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   31.690593][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   31.690717][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   31.690884][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   31.691002][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   31.691121][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   31.691243][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   31.691362][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   31.691484][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   31.691608][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   31.691728][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   31.691896][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   31.692014][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.692134][   T12]  process_one_work (kernel/workqueue.c:3314)
[   31.692258][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   31.692376][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   31.692500][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   31.692623][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   31.692793][   T12]  kthread (kernel/kthread.c:436)
[   31.692883][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   31.693032][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   31.693153][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   31.693271][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   31.693419][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   31.693539][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   31.693663][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   31.699802][  T235] ------------[ cut here ]------------
| [   31.699939][  T235] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/235
| [   31.700198][  T235] Modules linked in:
| [   31.700596][  T235] Tainted: [W]=WARN
[   31.700699][  T235] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.700869][  T235] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   31.701036][  T235] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   31.701501][  T235] RSP: 0018:ffa0000000957918 EFLAGS: 00010286
[   31.701669][  T235] RAX: 00000000ffffffa6 RBX: ff11000002858c80 RCX: 1ff400000012aee9
[   31.701868][  T235] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000002858d3c
[   31.702059][  T235] RBP: ff11000001f61000 R08: 1fe220000050b1a9 R09: ff1100000c1aae80
[   31.702253][  T235] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   31.702445][  T235] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000001f61000
[   31.702643][  T235] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   31.702877][  T235] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.703041][  T235] CR2: 00007fa0a8f22bc0 CR3: 000000000c1a0003 CR4: 0000000000771ef0
[   31.703238][  T235] PKRU: 55555554
[   31.703334][  T235] Call Trace:
[   31.703430][  T235]  <TASK>
[   31.703498][  T235]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   31.703629][  T235]  ? notifier_call_chain (kernel/notifier.c:85)
[   31.703771][  T235]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   31.703870][  T235]  register_netdevice (net/core/dev.c:11488)
[   31.704002][  T235]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   31.704164][  T235]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   31.704297][  T235]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   31.704426][  T235]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   31.704556][  T235]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   31.704691][  T235]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   31.704825][  T235]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   31.704957][  T235]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   31.705089][  T235]  ops_init (net/core/net_namespace.c:137)
[   31.705190][  T235]  setup_net (net/core/net_namespace.c:446)
[   31.705289][  T235]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   31.705418][  T235]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   31.705549][  T235]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   31.705685][  T235]  copy_net_ns (net/core/net_namespace.c:579)
[   31.705822][  T235]  create_new_namespaces (kernel/nsproxy.c:132)
[   31.705956][  T235]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   31.706087][  T235]  ksys_unshare (kernel/fork.c:3243)
[   31.706218][  T235]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   31.706349][  T235]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   31.706477][  T235]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   31.706606][  T235]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   31.706749][  T235]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.706883][  T235]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   31.707011][  T235]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   31.707140][  T235]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   31.707268][  T235]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   31.707397][  T235]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   31.707525][  T235]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   31.707690][  T235] RIP: 0033:0x7fa0a8f22bcb
[   31.707830][  T235] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   31.708291][  T235] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   31.708486][  T235] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   31.708683][  T235] RDX: 0000000000406580 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   31.708881][  T235] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   31.709072][  T235] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   31.709264][  T235] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   31.713107][  T235] ------------[ cut here ]------------
| [   31.713243][  T235] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/235
| [   31.713501][  T235] Modules linked in:
| [   31.713907][  T235] Tainted: [W]=WARN
[   31.714007][  T235] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.714169][  T235] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   31.714336][  T235] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   31.714826][  T235] RSP: 0018:ffa00000009578f8 EFLAGS: 00010286
[   31.714991][  T235] RAX: 00000000ffffffa6 RBX: ff11000002731700 RCX: 1ff400000012aee5
[   31.715187][  T235] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000027317bc
[   31.715380][  T235] RBP: ff1100000fd61000 R08: 1fe22000004e62f9 R09: ff1100000c1aae80
[   31.715576][  T235] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   31.715778][  T235] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fd61000
[   31.715974][  T235] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   31.716202][  T235] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.716365][  T235] CR2: 00007fa0a8f22bc0 CR3: 000000000c1a0003 CR4: 0000000000771ef0
[   31.716562][  T235] PKRU: 55555554
[   31.716665][  T235] Call Trace:
[   31.716768][  T235]  <TASK>
[   31.716835][  T235]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   31.716966][  T235]  ? notifier_call_chain (kernel/notifier.c:85)
[   31.717099][  T235]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   31.717200][  T235]  register_netdevice (net/core/dev.c:11488)
[   31.717331][  T235]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   31.717495][  T235]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   31.717628][  T235]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   31.717767][  T235]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   31.717897][  T235]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   31.718029][  T235]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   31.718166][  T235]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   31.718299][  T235]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   31.718431][  T235]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   31.718564][  T235]  vti_init_net (net/ipv4/ip_vti.c:517)
[   31.718699][  T235]  ops_init (net/core/net_namespace.c:137)
[   31.718804][  T235]  setup_net (net/core/net_namespace.c:446)
[   31.718904][  T235]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   31.719034][  T235]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   31.719166][  T235]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   31.719299][  T235]  copy_net_ns (net/core/net_namespace.c:579)
[   31.719430][  T235]  create_new_namespaces (kernel/nsproxy.c:132)
[   31.719564][  T235]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   31.719700][  T235]  ksys_unshare (kernel/fork.c:3243)
[   31.719835][  T235]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   31.719965][  T235]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   31.720097][  T235]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   31.720229][  T235]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   31.720361][  T235]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.720492][  T235]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   31.720621][  T235]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   31.720762][  T235]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   31.720891][  T235]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   31.721022][  T235]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   31.721154][  T235]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   31.721317][  T235] RIP: 0033:0x7fa0a8f22bcb
[   31.721454][  T235] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   31.721926][  T235] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   31.722125][  T235] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   31.722319][  T235] RDX: 0000000000406580 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   31.722514][  T235] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   31.722712][  T235] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   31.722912][  T235] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   31.727942][  T235] ------------[ cut here ]------------
| [   31.728079][  T235] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/235
| [   31.728336][  T235] Modules linked in:
| [   31.728742][  T235] Tainted: [W]=WARN
[   31.728840][  T235] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.729001][  T235] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   31.729170][  T235] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   31.729626][  T235] RSP: 0018:ffa0000000957a78 EFLAGS: 00010286
[   31.729854][  T235] RAX: 00000000ffffffa6 RBX: ff110000028571c0 RCX: 1ff400000012af15
[   31.730049][  T235] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000285727c
[   31.730242][  T235] RBP: ff11000007ca1000 R08: 1fe220000050ae51 R09: ff1100000c1aae80
[   31.730435][  T235] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   31.730628][  T235] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000007ca1000
[   31.730884][  T235] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   31.731112][  T235] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.731275][  T235] CR2: 00007fa0a8f22bc0 CR3: 000000000c1a0003 CR4: 0000000000771ef0
[   31.731471][  T235] PKRU: 55555554
[   31.731567][  T235] Call Trace:
[   31.731669][  T235]  <TASK>
[   31.731793][  T235]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   31.731925][  T235]  ? notifier_call_chain (kernel/notifier.c:85)
[   31.732054][  T235]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   31.732153][  T235]  register_netdevice (net/core/dev.c:11488)
[   31.732284][  T235]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   31.732443][  T235]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   31.732575][  T235]  register_netdev (net/core/dev.c:11552)
[   31.732712][  T235]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   31.732898][  T235]  ops_init (net/core/net_namespace.c:137)
[   31.733000][  T235]  setup_net (net/core/net_namespace.c:446)
[   31.733100][  T235]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   31.733231][  T235]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   31.733361][  T235]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   31.733494][  T235]  copy_net_ns (net/core/net_namespace.c:579)
[   31.733626][  T235]  create_new_namespaces (kernel/nsproxy.c:132)
[   31.733819][  T235]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   31.733950][  T235]  ksys_unshare (kernel/fork.c:3243)
[   31.734080][  T235]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   31.734212][  T235]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   31.734342][  T235]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   31.734473][  T235]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   31.734605][  T235]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.734797][  T235]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   31.734927][  T235]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   31.735057][  T235]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   31.735188][  T235]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   31.735317][  T235]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   31.735447][  T235]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   31.735608][  T235] RIP: 0033:0x7fa0a8f22bcb
[   31.735807][  T235] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   31.736272][  T235] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   31.736468][  T235] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   31.736673][  T235] RDX: 0000000000406580 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   31.736923][  T235] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   31.737116][  T235] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   31.737308][  T235] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   31.741603][  T235] ------------[ cut here ]------------
| [   31.741799][  T235] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/235
| [   31.742104][  T235] Modules linked in:
| [   31.742598][  T235] Tainted: [W]=WARN
[   31.742773][  T235] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.742984][  T235] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   31.743201][  T235] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   31.743719][  T235] RSP: 0018:ffa0000000957a68 EFLAGS: 00010286
[   31.743944][  T235] RAX: 00000000ffffffa6 RBX: ff1100000b62e580 RCX: 1ff400000012af13
[   31.744189][  T235] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b62e63c
[   31.744433][  T235] RBP: ff1100000fd49000 R08: 1fe22000016c5cc9 R09: ff1100000c1aae80
[   31.744683][  T235] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   31.744939][  T235] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fd49000
[   31.745183][  T235] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   31.745460][  T235] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.745677][  T235] CR2: 00007fa0a8e21000 CR3: 000000000c1a0002 CR4: 0000000000771ef0
[   31.745932][  T235] PKRU: 55555554
[   31.746075][  T235] Call Trace:
[   31.746219][  T235]  <TASK>
[   31.746334][  T235]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   31.746511][  T235]  ? notifier_call_chain (kernel/notifier.c:85)
[   31.746697][  T235]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   31.746853][  T235]  register_netdevice (net/core/dev.c:11488)
[   31.747034][  T235]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   31.747244][  T235]  register_netdev (net/core/dev.c:11552)
[   31.747422][  T235]  sit_init_net (net/ipv6/sit.c:1860)
[   31.747601][  T235]  ops_init (net/core/net_namespace.c:137)
[   31.747771][  T235]  setup_net (net/core/net_namespace.c:446)
[   31.747917][  T235]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   31.748096][  T235]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   31.748274][  T235]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   31.748454][  T235]  copy_net_ns (net/core/net_namespace.c:579)
[   31.748634][  T235]  create_new_namespaces (kernel/nsproxy.c:132)
[   31.748838][  T235]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   31.749018][  T235]  ksys_unshare (kernel/fork.c:3243)
[   31.749196][  T235]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   31.749375][  T235]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   31.749553][  T235]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   31.749750][  T235]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   31.749929][  T235]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.750108][  T235]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   31.750284][  T235]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   31.750461][  T235]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   31.750649][  T235]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   31.750840][  T235]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   31.751018][  T235]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   31.751227][  T235] RIP: 0033:0x7fa0a8f22bcb
[   31.751409][  T235] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   31.751941][  T235] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   31.752185][  T235] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   31.752424][  T235] RDX: 0000000000406580 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   31.752673][  T235] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   31.752933][  T235] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   31.753175][  T235] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   31.771071][  T235] ------------[ cut here ]------------
| [   31.771253][  T235] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/235
| [   31.771560][  T235] Modules linked in:
| [   31.772077][  T235] Tainted: [W]=WARN
[   31.772224][  T235] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.772434][  T235] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   31.772659][  T235] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   31.773177][  T235] RSP: 0018:ffa0000000957a78 EFLAGS: 00010286
[   31.773390][  T235] RAX: 00000000ffffffa6 RBX: ff1100000c9071c0 RCX: 1ff400000012af15
[   31.773633][  T235] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c90727c
[   31.773897][  T235] RBP: ff1100000fdb1000 R08: 1fe2200001920e51 R09: ff1100000c1aae80
[   31.774141][  T235] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   31.774384][  T235] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fdb1000
[   31.774629][  T235] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   31.774925][  T235] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.775138][  T235] CR2: 00007fa0a8e21000 CR3: 000000000c1a0002 CR4: 0000000000771ef0
[   31.775384][  T235] PKRU: 55555554
[   31.775528][  T235] Call Trace:
[   31.775679][  T235]  <TASK>
[   31.775807][  T235]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   31.775987][  T235]  ? notifier_call_chain (kernel/notifier.c:85)
[   31.776164][  T235]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   31.776311][  T235]  register_netdevice (net/core/dev.c:11488)
[   31.776491][  T235]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   31.776709][  T235]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   31.776908][  T235]  register_netdev (net/core/dev.c:11552)
[   31.777088][  T235]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   31.777267][  T235]  ops_init (net/core/net_namespace.c:137)
[   31.777415][  T235]  setup_net (net/core/net_namespace.c:446)
[   31.777562][  T235]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   31.777759][  T235]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   31.777939][  T235]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   31.778121][  T235]  copy_net_ns (net/core/net_namespace.c:579)
[   31.778300][  T235]  create_new_namespaces (kernel/nsproxy.c:132)
[   31.778480][  T235]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   31.778663][  T235]  ksys_unshare (kernel/fork.c:3243)
[   31.778851][  T235]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   31.779029][  T235]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   31.779205][  T235]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   31.779391][  T235]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   31.779570][  T235]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.779766][  T235]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   31.779944][  T235]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   31.780122][  T235]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   31.780299][  T235]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   31.780476][  T235]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   31.780661][  T235]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   31.780883][  T235] RIP: 0033:0x7fa0a8f22bcb
[   31.781064][  T235] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   31.781567][  T235] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   31.781828][  T235] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   31.782069][  T235] RDX: 0000000000406580 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   31.782308][  T235] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   31.782546][  T235] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   31.782807][  T235] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   32.789640][   T12] ------------[ cut here ]------------
| [   32.789832][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   32.790080][   T12] Modules linked in:
| [   32.790449][   T12] Tainted: [W]=WARN
[   32.790542][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.790702][   T12] Workqueue: netns cleanup_net
[   32.794958][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.802192][   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
[   32.802609][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   32.802782][   T12] RAX: 00000000ffffffa6 RBX: ff1100000e4ae3c0 RCX: 1ff4000000018eed
[   32.802956][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e4ae47c
[   32.803130][   T12] RBP: ff1100000fdb1000 R08: 1fe2200001c95c91 R09: ff11000001aed1d0
[   32.803302][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   32.803476][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   32.803656][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   32.803870][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.804017][   T12] CR2: 00007fa0a8f22bc0 CR3: 0000000044d4d001 CR4: 0000000000771ef0
[   32.804197][   T12] PKRU: 55555554
[   32.804286][   T12] Call Trace:
[   32.804373][   T12]  <TASK>
[   32.804436][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   32.804588][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   32.804746][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   32.804867][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   32.804986][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   32.805100][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   32.805220][   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)
[   32.805339][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   32.805456][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   32.805571][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.805694][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   32.805820][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   32.805935][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   32.806052][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   32.806168][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.806287][   T12]  process_one_work (kernel/workqueue.c:3314)
[   32.806407][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   32.806523][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.806647][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   32.806775][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   32.806891][   T12]  kthread (kernel/kthread.c:436)
[   32.806981][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   32.807126][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   32.807241][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   32.807361][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   32.807505][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   32.807620][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   32.807746][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   32.810079][   T12] ------------[ cut here ]------------
| [   32.810201][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   32.810431][   T12] Modules linked in:
| [   32.810876][   T12] Tainted: [W]=WARN
[   32.810967][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.811115][   T12] Workqueue: netns cleanup_net
[   32.811330][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.811487][   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
[   32.811934][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   32.812081][   T12] RAX: 00000000ffffffa6 RBX: ff1100000bea0c80 RCX: 1ff4000000018eed
[   32.812256][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bea0d3c
[   32.812431][   T12] RBP: ff1100000fd49000 R08: 1fe22000017d41a9 R09: ff11000001aed1d0
[   32.812605][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   32.812788][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   32.812967][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   32.813173][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.813319][   T12] CR2: 00007fa0a8f22bc0 CR3: 0000000044d4d001 CR4: 0000000000771ef0
[   32.813497][   T12] PKRU: 55555554
[   32.813585][   T12] Call Trace:
[   32.813677][   T12]  <TASK>
[   32.813745][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   32.813898][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   32.814045][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   32.814163][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   32.814283][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   32.814401][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   32.814521][   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)
[   32.814641][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   32.814770][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   32.814888][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.815010][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   32.815129][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   32.815245][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   32.815363][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   32.815479][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.815600][   T12]  process_one_work (kernel/workqueue.c:3314)
[   32.815729][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   32.815853][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.815975][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   32.816096][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   32.816214][   T12]  kthread (kernel/kthread.c:436)
[   32.816304][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   32.816451][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   32.816572][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   32.816694][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   32.816845][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   32.816964][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   32.817082][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   32.819300][   T12] ------------[ cut here ]------------
| [   32.819416][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   32.819645][   T12] Modules linked in:
| [   32.820018][   T12] Tainted: [W]=WARN
[   32.820105][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.820248][   T12] Workqueue: netns cleanup_net
[   32.820368][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.820608][   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
[   32.821159][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   32.821306][   T12] RAX: 00000000ffffffa6 RBX: ff11000005108200 RCX: 1ff4000000018eed
[   32.821485][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000051082bc
[   32.821660][   T12] RBP: ff11000007ca1000 R08: 1fe2200000a21059 R09: ff11000001aed1d0
[   32.821956][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   32.822128][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   32.822303][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   32.822510][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.822659][   T12] CR2: 00007fa0a8f22bc0 CR3: 0000000044d4d001 CR4: 0000000000771ef0
[   32.822882][   T12] PKRU: 55555554
[   32.822968][   T12] Call Trace:
[   32.823054][   T12]  <TASK>
[   32.823115][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   32.823262][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   32.823406][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   32.823522][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   32.823717][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   32.823883][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   32.824000][   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)
[   32.824117][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   32.824233][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   32.824347][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.824537][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   32.824664][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   32.824825][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   32.824942][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   32.825056][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.825173][   T12]  process_one_work (kernel/workqueue.c:3314)
[   32.825291][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   32.825478][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.825604][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   32.825729][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   32.825962][   T12]  kthread (kernel/kthread.c:436)
[   32.826051][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   32.826195][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   32.826311][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   32.826433][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   32.826581][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   32.826700][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   32.826865][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   32.829486][   T12] ------------[ cut here ]------------
| [   32.829618][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   32.830158][   T12] Modules linked in:
| [   32.830514][   T12] Tainted: [W]=WARN
[   32.830602][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.830762][   T12] Workqueue: netns cleanup_net
[   32.830884][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.831036][   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
[   32.831460][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   32.831608][   T12] RAX: 00000000ffffffa6 RBX: ff11000002856e40 RCX: 1ff4000000018eed
[   32.831791][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000002856efc
[   32.831970][   T12] RBP: ff1100000fd61000 R08: 1fe220000050ade1 R09: ff11000001aed1d0
[   32.832143][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   32.832318][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   32.832492][   T12] FS:  0000000000000000(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   32.832700][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.832856][   T12] CR2: 00007fa0a8f22bc0 CR3: 000000000c1a0004 CR4: 0000000000771ef0
[   32.833035][   T12] PKRU: 55555554
[   32.833124][   T12] Call Trace:
[   32.833214][   T12]  <TASK>
[   32.833280][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   32.833430][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   32.833574][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   32.833696][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   32.833821][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   32.833944][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   32.834062][   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)
[   32.834182][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   32.834302][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   32.834418][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.834539][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   32.834660][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   32.834782][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   32.834902][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   32.835019][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.835139][   T12]  process_one_work (kernel/workqueue.c:3314)
[   32.835260][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   32.835378][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.835499][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   32.835621][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   32.835746][   T12]  kthread (kernel/kthread.c:436)
[   32.835838][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   32.835984][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   32.836102][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   32.836220][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   32.836367][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   32.836489][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   32.836606][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   32.838624][   T12] ------------[ cut here ]------------
| [   32.838749][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   32.838984][   T12] Modules linked in:
| [   32.839341][   T12] Tainted: [W]=WARN
[   32.839434][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.839581][   T12] Workqueue: netns cleanup_net
[   32.839708][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.839865][   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
[   32.840285][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   32.840433][   T12] RAX: 00000000ffffffa6 RBX: ff1100000b616e40 RCX: 1ff4000000018eed
[   32.840610][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b616efc
[   32.840798][   T12] RBP: ff11000001f61000 R08: 1fe22000016c2de1 R09: ff11000001aed1d0
[   32.840972][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   32.841146][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   32.841322][   T12] FS:  0000000000000000(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   32.841525][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.841674][   T12] CR2: 00007fa0a8f22bc0 CR3: 000000000c1a0004 CR4: 0000000000771ef0
[   32.841859][   T12] PKRU: 55555554
[   32.841946][   T12] Call Trace:
[   32.842035][   T12]  <TASK>
[   32.842095][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   32.842246][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   32.842389][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   32.842504][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   32.842622][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   32.842821][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   32.842938][   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)
[   32.843055][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   32.843175][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   32.843362][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.843485][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   32.843601][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   32.843721][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   32.843916][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   32.844032][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.844151][   T12]  process_one_work (kernel/workqueue.c:3314)
[   32.844271][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   32.844460][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.844581][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   32.844708][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   32.844828][   T12]  kthread (kernel/kthread.c:436)
[   32.844988][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   32.845133][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   32.845252][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   32.845370][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   32.845589][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   32.845709][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   32.845829][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   32.854369][  T237] ------------[ cut here ]------------
| [   32.854510][  T237] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/237
| [   32.854776][  T237] Modules linked in:
| [   32.855177][  T237] Tainted: [W]=WARN
[   32.855275][  T237] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.855440][  T237] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.855609][  T237] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   32.856083][  T237] RSP: 0018:ffa00000008f7a80 EFLAGS: 00010286
[   32.856247][  T237] RAX: 00000000ffffffa6 RBX: ff11000005109380 RCX: 1ff400000011ef16
[   32.856440][  T237] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000510943c
[   32.856634][  T237] RBP: ff1100000f29c000 R08: 1fe2200000a21289 R09: ff1100000fe78b80
[   32.856842][  T237] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   32.857038][  T237] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f29c000
[   32.857236][  T237] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   32.857464][  T237] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.857629][  T237] CR2: 00007fa0a8f22bc0 CR3: 000000000c1a0004 CR4: 0000000000771ef0
[   32.857836][  T237] PKRU: 55555554
[   32.857934][  T237] Call Trace:
[   32.858033][  T237]  <TASK>
[   32.858101][  T237]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   32.858234][  T237]  ? notifier_call_chain (kernel/notifier.c:85)
[   32.858368][  T237]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   32.858470][  T237]  register_netdevice (net/core/dev.c:11488)
[   32.858605][  T237]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   32.858781][  T237]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   32.858915][  T237]  register_netdev (net/core/dev.c:11552)
[   32.859047][  T237]  loopback_net_init (drivers/net/loopback.c:218)
[   32.859182][  T237]  ops_init (net/core/net_namespace.c:137)
[   32.859284][  T237]  setup_net (net/core/net_namespace.c:446)
[   32.859384][  T237]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   32.859518][  T237]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   32.859654][  T237]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   32.859793][  T237]  copy_net_ns (net/core/net_namespace.c:579)
[   32.859927][  T237]  create_new_namespaces (kernel/nsproxy.c:132)
[   32.860062][  T237]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   32.860195][  T237]  ksys_unshare (kernel/fork.c:3243)
[   32.860325][  T237]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   32.860458][  T237]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   32.860589][  T237]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.860726][  T237]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   32.860863][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.860996][  T237]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   32.861127][  T237]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   32.861257][  T237]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   32.861388][  T237]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   32.861524][  T237]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   32.861659][  T237]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   32.861826][  T237] RIP: 0033:0x7fa0a8f22bcb
[   32.861964][  T237] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   32.862430][  T237] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   32.862627][  T237] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   32.862834][  T237] RDX: 0000000000406580 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   32.863029][  T237] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   32.863227][  T237] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   32.863424][  T237] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   32.870397][  T237] ------------[ cut here ]------------
| [   32.870539][  T237] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: scm_rights/237
| [   32.870810][  T237] Modules linked in:
| [   32.871204][  T237] Tainted: [W]=WARN
[   32.871303][  T237] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.871467][  T237] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.871635][  T237] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   32.872105][  T237] RSP: 0018:ffa00000008f7918 EFLAGS: 00010286
[   32.872270][  T237] RAX: 00000000ffffffa6 RBX: ff1100000c8671c0 RCX: 1ff400000011eee9
[   32.872467][  T237] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c86727c
[   32.872664][  T237] RBP: ff1100000e6a1000 R08: 1fe220000190ce51 R09: ff1100000fe78b80
[   32.872864][  T237] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   32.873056][  T237] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e6a1000
[   32.873254][  T237] FS:  00007fa0a8e27740(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   32.873481][  T237] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.873649][  T237] CR2: 00007fa0a8f22bc0 CR3: 000000000c1a0002 CR4: 0000000000771ef0
[   32.873859][  T237] PKRU: 55555554
[   32.873957][  T237] Call Trace:
[   32.874055][  T237]  <TASK>
[   32.874123][  T237]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   32.874259][  T237]  ? notifier_call_chain (kernel/notifier.c:85)
[   32.874388][  T237]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   32.874488][  T237]  register_netdevice (net/core/dev.c:11488)
[   32.874619][  T237]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   32.874792][  T237]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   32.874927][  T237]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   32.875057][  T237]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   32.875188][  T237]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   32.875318][  T237]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   32.875447][  T237]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   32.875577][  T237]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   32.875713][  T237]  ops_init (net/core/net_namespace.c:137)
[   32.875816][  T237]  setup_net (net/core/net_namespace.c:446)
[   32.875918][  T237]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   32.876046][  T237]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   32.876175][  T237]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   32.876306][  T237]  copy_net_ns (net/core/net_namespace.c:579)
[   32.876439][  T237]  create_new_namespaces (kernel/nsproxy.c:132)
[   32.876572][  T237]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   32.876706][  T237]  ksys_unshare (kernel/fork.c:3243)
[   32.876844][  T237]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   32.876973][  T237]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   32.877102][  T237]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.877232][  T237]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   32.877364][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.877496][  T237]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   32.877625][  T237]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   32.877766][  T237]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   32.877899][  T237]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   32.878029][  T237]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   32.878160][  T237]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   32.878320][  T237] RIP: 0033:0x7fa0a8f22bcb
[   32.878456][  T237] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   32.878929][  T237] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   32.879124][  T237] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   32.879317][  T237] RDX: 0000000000406580 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   32.879510][  T237] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   32.879709][  T237] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   32.879907][  T237] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   32.881759][   T12] ------------[ cut here ]------------
| [   32.881884][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   32.882112][   T12] Modules linked in:
| [   32.882473][   T12] Tainted: [W]=WARN
[   32.882561][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.882710][   T12] Workqueue: netns cleanup_net
[   32.883194][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.883350][   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
[   32.883775][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   32.883922][   T12] RAX: 00000000ffffffa6 RBX: ff11000008cbfc40 RCX: 1ff4000000018ed5
[   32.884096][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000008cbfcfc
[   32.884270][   T12] RBP: ff1100000c4fc000 R08: 1fe2200001197fa1 R09: ff11000001aed1d0
[   32.884448][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   32.884622][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   32.884804][   T12] FS:  0000000000000000(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   32.885009][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.885155][   T12] CR2: 00007fa0a8f22bc0 CR3: 000000000c1a0004 CR4: 0000000000771ef0
[   32.885332][   T12] PKRU: 55555554
[   32.885418][   T12] Call Trace:
[   32.885505][   T12]  <TASK>
[   32.885567][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   32.885721][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   32.885875][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   32.885996][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   32.886116][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   32.886237][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   32.886355][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   32.886474][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   32.886594][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   32.886714][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.886837][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   32.886958][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   32.887075][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   32.887194][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   32.887312][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.887431][   T12]  process_one_work (kernel/workqueue.c:3314)
[   32.887556][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   32.887676][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.887805][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   32.887927][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   32.888044][   T12]  kthread (kernel/kthread.c:436)
[   32.888133][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   32.888278][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   32.888396][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   32.888514][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   32.888664][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   32.888788][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   32.888908][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   32.905667][  T237] ------------[ cut here ]------------
| [   32.905812][  T237] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: scm_rights/237
| [   32.906073][  T237] Modules linked in:
| [   32.906475][  T237] Tainted: [W]=WARN
[   32.906575][  T237] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.906750][  T237] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.906922][  T237] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   32.907385][  T237] RSP: 0018:ffa00000008f78f8 EFLAGS: 00010286
[   32.907551][  T237] RAX: 00000000ffffffa6 RBX: ff1100000bccc740 RCX: 1ff400000011eee5
[   32.907757][  T237] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bccc7fc
[   32.907953][  T237] RBP: ff1100000e761000 R08: 1fe2200001799901 R09: ff1100000fe78b80
[   32.908149][  T237] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   32.908346][  T237] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e761000
[   32.908544][  T237] FS:  00007fa0a8e27740(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   32.908782][  T237] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.908945][  T237] CR2: 00007fa0a8f22bc0 CR3: 000000000c1a0002 CR4: 0000000000771ef0
[   32.909141][  T237] PKRU: 55555554
[   32.909238][  T237] Call Trace:
[   32.909336][  T237]  <TASK>
[   32.909403][  T237]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   32.909535][  T237]  ? notifier_call_chain (kernel/notifier.c:85)
[   32.909672][  T237]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   32.909778][  T237]  register_netdevice (net/core/dev.c:11488)
[   32.909911][  T237]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   32.910075][  T237]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   32.910208][  T237]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   32.910339][  T237]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   32.910470][  T237]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   32.910602][  T237]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   32.910743][  T237]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   32.910878][  T237]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   32.911010][  T237]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   32.911143][  T237]  vti_init_net (net/ipv4/ip_vti.c:517)
[   32.911275][  T237]  ops_init (net/core/net_namespace.c:137)
[   32.911377][  T237]  setup_net (net/core/net_namespace.c:446)
[   32.911477][  T237]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   32.911613][  T237]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   32.911749][  T237]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   32.911884][  T237]  copy_net_ns (net/core/net_namespace.c:579)
[   32.912016][  T237]  create_new_namespaces (kernel/nsproxy.c:132)
[   32.912150][  T237]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   32.912283][  T237]  ksys_unshare (kernel/fork.c:3243)
[   32.912414][  T237]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   32.912547][  T237]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   32.912681][  T237]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.912815][  T237]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   32.912950][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.913082][  T237]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   32.913213][  T237]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   32.913344][  T237]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   32.913474][  T237]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   32.913604][  T237]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   32.913744][  T237]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   32.913907][  T237] RIP: 0033:0x7fa0a8f22bcb
[   32.914043][  T237] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   32.914507][  T237] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   32.914707][  T237] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   32.914909][  T237] RDX: 0000000000406580 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   32.915105][  T237] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   32.915300][  T237] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   32.915498][  T237] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   32.919556][  T237] ------------[ cut here ]------------
| [   32.919695][  T237] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: scm_rights/237
| [   32.919952][  T237] Modules linked in:
| [   32.920340][  T237] Tainted: [W]=WARN
[   32.920438][  T237] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.920598][  T237] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.920773][  T237] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   32.921226][  T237] RSP: 0018:ffa00000008f7a78 EFLAGS: 00010286
[   32.921389][  T237] RAX: 00000000ffffffa6 RBX: ff1100000e4418c0 RCX: 1ff400000011ef15
[   32.921579][  T237] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e44197c
[   32.921779][  T237] RBP: ff11000008c09000 R08: 1fe2200001c88331 R09: ff1100000fe78b80
[   32.921969][  T237] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   32.922160][  T237] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008c09000
[   32.922353][  T237] FS:  00007fa0a8e27740(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   32.922578][  T237] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.922748][  T237] CR2: 00007fa0a8f22bc0 CR3: 000000000c1a0002 CR4: 0000000000771ef0
[   32.922941][  T237] PKRU: 55555554
[   32.923038][  T237] Call Trace:
[   32.923135][  T237]  <TASK>
[   32.923201][  T237]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   32.923330][  T237]  ? notifier_call_chain (kernel/notifier.c:85)
[   32.923460][  T237]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   32.923557][  T237]  register_netdevice (net/core/dev.c:11488)
[   32.923692][  T237]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   32.923858][  T237]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.923990][  T237]  register_netdev (net/core/dev.c:11552)
[   32.924119][  T237]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   32.924250][  T237]  ops_init (net/core/net_namespace.c:137)
[   32.924348][  T237]  setup_net (net/core/net_namespace.c:446)
[   32.924446][  T237]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   32.924574][  T237]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   32.924707][  T237]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   32.924843][  T237]  copy_net_ns (net/core/net_namespace.c:579)
[   32.924973][  T237]  create_new_namespaces (kernel/nsproxy.c:132)
[   32.925103][  T237]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   32.925232][  T237]  ksys_unshare (kernel/fork.c:3243)
[   32.925359][  T237]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   32.925487][  T237]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   32.925614][  T237]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.925750][  T237]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   32.925881][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.926012][  T237]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   32.926141][  T237]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   32.926270][  T237]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   32.926399][  T237]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   32.926527][  T237]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   32.926658][  T237]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   32.926825][  T237] RIP: 0033:0x7fa0a8f22bcb
[   32.926959][  T237] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   32.927416][  T237] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   32.927611][  T237] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   32.927813][  T237] RDX: 0000000000406580 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   32.928005][  T237] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   32.928198][  T237] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   32.928389][  T237] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   32.932431][  T237] ------------[ cut here ]------------
| [   32.932560][  T237] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: scm_rights/237
| [   32.932828][  T237] Modules linked in:
| [   32.933219][  T237] Tainted: [W]=WARN
[   32.933318][  T237] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.933481][  T237] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.933652][  T237] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   32.934123][  T237] RSP: 0018:ffa00000008f7a68 EFLAGS: 00010286
[   32.934286][  T237] RAX: 00000000ffffffa6 RBX: ff11000005109e00 RCX: 1ff400000011ef13
[   32.934481][  T237] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000005109ebc
[   32.934681][  T237] RBP: ff11000010bdc000 R08: 1fe2200000a213d9 R09: ff1100000fe78b80
[   32.934885][  T237] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   32.935078][  T237] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000010bdc000
[   32.935272][  T237] FS:  00007fa0a8e27740(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   32.935503][  T237] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.935669][  T237] CR2: 00007fa0a8f22bc0 CR3: 000000000c1a0002 CR4: 0000000000771ef0
[   32.935871][  T237] PKRU: 55555554
[   32.935969][  T237] Call Trace:
[   32.936065][  T237]  <TASK>
[   32.936133][  T237]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   32.936265][  T237]  ? notifier_call_chain (kernel/notifier.c:85)
[   32.936397][  T237]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   32.936498][  T237]  register_netdevice (net/core/dev.c:11488)
[   32.936631][  T237]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   32.936807][  T237]  register_netdev (net/core/dev.c:11552)
[   32.936938][  T237]  sit_init_net (net/ipv6/sit.c:1860)
[   32.937069][  T237]  ops_init (net/core/net_namespace.c:137)
[   32.937168][  T237]  setup_net (net/core/net_namespace.c:446)
[   32.937269][  T237]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   32.937398][  T237]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   32.937529][  T237]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   32.937666][  T237]  copy_net_ns (net/core/net_namespace.c:579)
[   32.937804][  T237]  create_new_namespaces (kernel/nsproxy.c:132)
[   32.937937][  T237]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   32.938068][  T237]  ksys_unshare (kernel/fork.c:3243)
[   32.938200][  T237]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   32.938331][  T237]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   32.938460][  T237]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.938591][  T237]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   32.938726][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.938863][  T237]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   32.938992][  T237]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   32.939122][  T237]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   32.939254][  T237]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   32.939384][  T237]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   32.939514][  T237]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   32.939679][  T237] RIP: 0033:0x7fa0a8f22bcb
[   32.939822][  T237] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   32.940289][  T237] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   32.940487][  T237] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   32.940687][  T237] RDX: 0000000000406580 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   32.940886][  T237] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   32.941081][  T237] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   32.941277][  T237] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   32.945970][  T237] ------------[ cut here ]------------
| [   32.946104][  T237] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: scm_rights/237
| [   32.946360][  T237] Modules linked in:
| [   32.946854][  T237] Tainted: [W]=WARN
[   32.946953][  T237] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.947204][  T237] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.947374][  T237] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   32.947941][  T237] RSP: 0018:ffa00000008f7a78 EFLAGS: 00010286
[   32.948106][  T237] RAX: 00000000ffffffa6 RBX: ff1100000ebb9a80 RCX: 1ff400000011ef15
[   32.948299][  T237] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ebb9b3c
[   32.948582][  T237] RBP: ff1100000fcd1000 R08: 1fe2200001d77369 R09: ff1100000fe78b80
[   32.948786][  T237] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   32.949068][  T237] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fcd1000
[   32.949264][  T237] FS:  00007fa0a8e27740(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   32.949490][  T237] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.949752][  T237] CR2: 00007fa0a8f22bc0 CR3: 000000000c1a0002 CR4: 0000000000771ef0
[   32.949947][  T237] PKRU: 55555554
[   32.950047][  T237] Call Trace:
[   32.950145][  T237]  <TASK>
[   32.950301][  T237]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   32.950432][  T237]  ? notifier_call_chain (kernel/notifier.c:85)
[   32.950563][  T237]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   32.950669][  T237]  register_netdevice (net/core/dev.c:11488)
[   32.950894][  T237]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   32.951057][  T237]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.951191][  T237]  register_netdev (net/core/dev.c:11552)
[   32.951321][  T237]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   32.951540][  T237]  ops_init (net/core/net_namespace.c:137)
[   32.951641][  T237]  setup_net (net/core/net_namespace.c:446)
[   32.951748][  T237]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   32.951877][  T237]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   32.952007][  T237]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   32.952227][  T237]  copy_net_ns (net/core/net_namespace.c:579)
[   32.952358][  T237]  create_new_namespaces (kernel/nsproxy.c:132)
[   32.952490][  T237]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   32.952621][  T237]  ksys_unshare (kernel/fork.c:3243)
[   32.952849][  T237]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   32.952979][  T237]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   32.953108][  T237]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.953240][  T237]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   32.953460][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.953592][  T237]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   32.953726][  T237]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   32.953862][  T237]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   32.954081][  T237]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   32.954211][  T237]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   32.954341][  T237]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   32.954505][  T237] RIP: 0033:0x7fa0a8f22bcb
[   32.954743][  T237] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   32.955302][  T237] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   32.955508][  T237] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   32.955705][  T237] RDX: 0000000000406580 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   32.955993][  T237] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   32.956188][  T237] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   32.956381][  T237] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   33.969839][   T12] ------------[ cut here ]------------
| [   33.970008][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   33.970250][   T12] Modules linked in:
| [   33.970621][   T12] Tainted: [W]=WARN
[   33.970716][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   33.970874][   T12] Workqueue: netns cleanup_net
[   33.971002][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   33.971157][   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
[   33.971593][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   33.971752][   T12] RAX: 00000000ffffffa6 RBX: ff11000008cbee40 RCX: 1ff4000000018eed
[   33.971927][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000008cbeefc
[   33.972101][   T12] RBP: ff1100000fcd1000 R08: 1fe2200001197de1 R09: ff11000001aed1d0
[   33.972276][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   33.972453][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   33.972631][   T12] FS:  0000000000000000(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   33.972859][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   33.973011][   T12] CR2: 00007fa0a8f22bc0 CR3: 0000000044d4d005 CR4: 0000000000771ef0
[   33.973195][   T12] PKRU: 55555554
[   33.973283][   T12] Call Trace:
[   33.973370][   T12]  <TASK>
[   33.973434][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   33.973590][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   33.973747][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   33.973867][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   33.973986][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   33.974103][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   33.974222][   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)
[   33.974342][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   33.974465][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   33.974581][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   33.974703][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   33.974827][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   33.974942][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   33.975063][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   33.975183][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   33.975305][   T12]  process_one_work (kernel/workqueue.c:3314)
[   33.975424][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   33.975540][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   33.975669][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   33.975795][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   33.975911][   T12]  kthread (kernel/kthread.c:436)
[   33.976001][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   33.976149][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   33.976267][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   33.976386][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   33.976533][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   33.976655][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   33.976778][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   33.979053][   T12] ------------[ cut here ]------------
| [   33.979172][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   33.979405][   T12] Modules linked in:
| [   33.979854][   T12] Tainted: [W]=WARN
[   33.979944][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   33.980090][   T12] Workqueue: netns cleanup_net
[   33.980215][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   33.980369][   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
[   33.980798][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   33.980945][   T12] RAX: 00000000ffffffa6 RBX: ff11000008cbe740 RCX: 1ff4000000018eed
[   33.981126][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000008cbe7fc
[   33.981304][   T12] RBP: ff11000010bdc000 R08: 1fe2200001197d01 R09: ff11000001aed1d0
[   33.981478][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   33.981656][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   33.981839][   T12] FS:  0000000000000000(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   33.982042][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   33.982196][   T12] CR2: 00007fa0a8f22bc0 CR3: 0000000044d4d005 CR4: 0000000000771ef0
[   33.982375][   T12] PKRU: 55555554
[   33.982462][   T12] Call Trace:
[   33.982553][   T12]  <TASK>
[   33.982616][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   33.982776][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   33.982920][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   33.983040][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   33.983157][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   33.983272][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   33.983390][   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)
[   33.983510][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   33.983630][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   33.983760][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   33.983882][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   33.984002][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   33.984118][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   33.984237][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   33.984354][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   33.984474][   T12]  process_one_work (kernel/workqueue.c:3314)
[   33.984596][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   33.984717][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   33.984847][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   33.984983][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   33.985101][   T12]  kthread (kernel/kthread.c:436)
[   33.985195][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   33.985341][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   33.985458][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   33.985582][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   33.985739][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   33.985868][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   33.985991][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   33.988289][   T12] ------------[ cut here ]------------
| [   33.988406][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   33.988634][   T12] Modules linked in:
| [   33.989535][   T12] Tainted: [W]=WARN
[   33.989624][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   33.989833][   T12] Workqueue: netns cleanup_net
[   33.989955][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   33.990116][   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
[   33.990553][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   33.990715][   T12] RAX: 00000000ffffffa6 RBX: ff11000008cbe040 RCX: 1ff4000000018eed
[   33.990954][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000008cbe0fc
[   33.991135][   T12] RBP: ff11000008c09000 R08: 1fe2200001197c21 R09: ff11000001aed1d0
[   33.991353][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   33.991533][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   33.991720][   T12] FS:  0000000000000000(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   33.991988][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   33.992135][   T12] CR2: 00007fa0a8f22bc0 CR3: 0000000044d4d005 CR4: 0000000000771ef0
[   33.992310][   T12] PKRU: 55555554
[   33.992406][   T12] Call Trace:
[   33.992498][   T12]  <TASK>
[   33.992560][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   33.992726][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   33.992927][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   33.993057][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   33.993194][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   33.993311][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   33.993443][   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)
[   33.993570][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   33.993695][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   33.993869][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   33.994007][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   33.994125][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   33.994241][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   33.994368][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   33.994489][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   33.994610][   T12]  process_one_work (kernel/workqueue.c:3314)
[   33.994787][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   33.994905][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   33.995033][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   33.995154][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   33.995273][   T12]  kthread (kernel/kthread.c:436)
[   33.995361][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   33.995517][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   33.995642][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   33.995829][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   33.995976][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   33.996094][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   33.996220][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   33.998523][   T12] ------------[ cut here ]------------
| [   33.998662][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   33.998902][   T12] Modules linked in:
| [   33.999261][   T12] Tainted: [W]=WARN
[   33.999349][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   33.999497][   T12] Workqueue: netns cleanup_net
[   33.999619][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   33.999794][   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
[   34.000216][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   34.000363][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c203380 RCX: 1ff4000000018eed
[   34.000542][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c20343c
[   34.000719][   T12] RBP: ff1100000e761000 R08: 1fe2200001840689 R09: ff11000001aed1d0
[   34.000901][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   34.001081][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   34.001256][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   34.001469][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   34.001617][   T12] CR2: 00000000004090e8 CR3: 00000000108d9006 CR4: 0000000000771ef0
[   34.001804][   T12] PKRU: 55555554
[   34.001896][   T12] Call Trace:
[   34.001984][   T12]  <TASK>
[   34.002051][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   34.002208][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   34.002355][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   34.002473][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   34.002597][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   34.002716][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   34.002843][   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)
[   34.002964][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   34.003085][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   34.003201][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   34.003324][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   34.003443][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   34.003561][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   34.003683][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   34.003802][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   34.003923][   T12]  process_one_work (kernel/workqueue.c:3314)
[   34.004044][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   34.004162][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   34.004283][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   34.004406][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   34.004524][   T12]  kthread (kernel/kthread.c:436)
[   34.004614][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   34.004774][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   34.004893][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   34.005011][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   34.005162][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   34.005279][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   34.005399][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   34.007415][   T12] ------------[ cut here ]------------
| [   34.007533][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   34.007774][   T12] Modules linked in:
| [   34.008128][   T12] Tainted: [W]=WARN
[   34.008221][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   34.008371][   T12] Workqueue: netns cleanup_net
[   34.008494][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   34.008651][   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
[   34.009089][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   34.009236][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c203700 RCX: 1ff4000000018eed
[   34.009408][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c2037bc
[   34.009581][   T12] RBP: ff1100000e6a1000 R08: 1fe22000018406f9 R09: ff11000001aed1d0
[   34.009763][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   34.009936][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   34.010110][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   34.010311][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   34.010457][   T12] CR2: 00000000004090e8 CR3: 00000000108d9006 CR4: 0000000000771ef0
[   34.010633][   T12] PKRU: 55555554
[   34.010722][   T12] Call Trace:
[   34.010814][   T12]  <TASK>
[   34.010875][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   34.011022][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   34.011166][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   34.011282][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   34.011401][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   34.011519][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   34.011635][   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)
[   34.011762][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   34.011880][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   34.011995][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   34.012115][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   34.012230][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   34.012348][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   34.012467][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   34.012587][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   34.012709][   T12]  process_one_work (kernel/workqueue.c:3314)
[   34.012834][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   34.012950][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   34.013072][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   34.013193][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   34.013311][   T12]  kthread (kernel/kthread.c:436)
[   34.013398][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   34.013542][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   34.013662][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   34.013785][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   34.013931][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   34.014047][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   34.014167][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   34.030209][  T239] ------------[ cut here ]------------
| [   34.030357][  T239] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/239
| [   34.030622][  T239] Modules linked in:
| [   34.031030][  T239] Tainted: [W]=WARN
[   34.031129][  T239] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   34.031292][  T239] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   34.031461][  T239] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   34.031933][  T239] RSP: 0018:ffa0000000967a80 EFLAGS: 00010286
[   34.032098][  T239] RAX: 00000000ffffffa6 RBX: ff110000096971c0 RCX: 1ff400000012cf16
[   34.032293][  T239] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000969727c
[   34.032487][  T239] RBP: ff11000005084000 R08: 1fe22000012d2e51 R09: ff11000010022e80
[   34.032683][  T239] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   34.032880][  T239] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000005084000
[   34.033078][  T239] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   34.033306][  T239] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   34.033469][  T239] CR2: 00007fa0a8f22bc0 CR3: 000000000c1a0001 CR4: 0000000000771ef0
[   34.033667][  T239] PKRU: 55555554
[   34.033770][  T239] Call Trace:
[   34.033868][  T239]  <TASK>
[   34.033935][  T239]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   34.034066][  T239]  ? notifier_call_chain (kernel/notifier.c:85)
[   34.034198][  T239]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   34.034299][  T239]  register_netdevice (net/core/dev.c:11488)
[   34.034433][  T239]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   34.034597][  T239]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   34.034740][  T239]  register_netdev (net/core/dev.c:11552)
[   34.034873][  T239]  loopback_net_init (drivers/net/loopback.c:218)
[   34.035004][  T239]  ops_init (net/core/net_namespace.c:137)
[   34.035105][  T239]  setup_net (net/core/net_namespace.c:446)
[   34.035203][  T239]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   34.035332][  T239]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   34.035463][  T239]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   34.035598][  T239]  copy_net_ns (net/core/net_namespace.c:579)
[   34.035738][  T239]  create_new_namespaces (kernel/nsproxy.c:132)
[   34.035874][  T239]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   34.036004][  T239]  ksys_unshare (kernel/fork.c:3243)
[   34.036133][  T239]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   34.036263][  T239]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   34.036392][  T239]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   34.036522][  T239]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   34.036660][  T239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   34.036797][  T239]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   34.036929][  T239]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   34.037060][  T239]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   34.037191][  T239]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   34.037321][  T239]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   34.037451][  T239]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   34.037614][  T239] RIP: 0033:0x7fa0a8f22bcb
[   34.037761][  T239] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   34.038228][  T239] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   34.038425][  T239] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   34.038620][  T239] RDX: 0000000000406580 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   34.038826][  T239] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   34.039021][  T239] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   34.039215][  T239] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   34.041103][   T12] ------------[ cut here ]------------
| [   34.041224][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   34.041456][   T12] Modules linked in:
| [   34.042275][   T12] Tainted: [W]=WARN
[   34.042365][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   34.042513][   T12] Workqueue: netns cleanup_net
[   34.042635][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   34.042855][   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
[   34.043275][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   34.043423][   T12] RAX: 00000000ffffffa6 RBX: ff11000009696580 RCX: 1ff4000000018ed5
[   34.043599][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000969663c
[   34.043828][   T12] RBP: ff1100000f29c000 R08: 1fe22000012d2cc9 R09: ff11000001aed1d0
[   34.044003][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   34.044178][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   34.044358][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   34.044563][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   34.044723][   T12] CR2: 00000000004090e8 CR3: 00000000108d9006 CR4: 0000000000771ef0
[   34.044952][   T12] PKRU: 55555554
[   34.045040][   T12] Call Trace:
[   34.045132][   T12]  <TASK>
[   34.045194][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   34.045344][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   34.045495][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   34.045624][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   34.045798][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   34.045917][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   34.046035][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   34.046156][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   34.046276][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   34.046405][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   34.046527][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   34.046652][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   34.046819][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   34.046941][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   34.047057][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   34.047183][   T12]  process_one_work (kernel/workqueue.c:3314)
[   34.047304][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   34.047427][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   34.047550][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   34.047676][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   34.047843][   T12]  kthread (kernel/kthread.c:436)
[   34.047932][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   34.048077][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   34.048196][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   34.048315][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   34.048463][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   34.048581][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   34.048703][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   34.054514][  T239] ------------[ cut here ]------------
| [   34.054658][  T239] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: scm_rights/239
| [   34.054922][  T239] Modules linked in:
| [   34.055312][  T239] Tainted: [W]=WARN
[   34.055413][  T239] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   34.055575][  T239] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   34.056508][  T239] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   34.057033][  T239] RSP: 0018:ffa0000000967918 EFLAGS: 00010286
[   34.057198][  T239] RAX: 00000000ffffffa6 RBX: ff1100000ebb8040 RCX: 1ff400000012cee9
[   34.057390][  T239] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ebb80fc
[   34.057580][  T239] RBP: ff11000011c9c000 R08: 1fe2200001d77021 R09: ff11000010022e80
[   34.057830][  T239] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   34.058024][  T239] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000011c9c000
[   34.058218][  T239] FS:  00007fa0a8e27740(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   34.058444][  T239] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   34.058605][  T239] CR2: 00000000004090e8 CR3: 000000000c1a0003 CR4: 0000000000771ef0
[   34.058862][  T239] PKRU: 55555554
[   34.058960][  T239] Call Trace:
[   34.059057][  T239]  <TASK>
[   34.059124][  T239]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   34.059255][  T239]  ? notifier_call_chain (kernel/notifier.c:85)
[   34.059383][  T239]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   34.059482][  T239]  register_netdevice (net/core/dev.c:11488)
[   34.059613][  T239]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   34.059839][  T239]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   34.059970][  T239]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   34.060098][  T239]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   34.060226][  T239]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   34.060358][  T239]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   34.060489][  T239]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   34.060621][  T239]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   34.060814][  T239]  ops_init (net/core/net_namespace.c:137)
[   34.060917][  T239]  setup_net (net/core/net_namespace.c:446)
[   34.061014][  T239]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   34.061143][  T239]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   34.061273][  T239]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   34.061405][  T239]  copy_net_ns (net/core/net_namespace.c:579)
[   34.061536][  T239]  create_new_namespaces (kernel/nsproxy.c:132)
[   34.061672][  T239]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   34.061859][  T239]  ksys_unshare (kernel/fork.c:3243)
[   34.061989][  T239]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   34.062118][  T239]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   34.062246][  T239]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   34.062376][  T239]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   34.062508][  T239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   34.062637][  T239]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   34.062825][  T239]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   34.062955][  T239]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   34.063082][  T239]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   34.063210][  T239]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   34.063340][  T239]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   34.063502][  T239] RIP: 0033:0x7fa0a8f22bcb
[   34.063637][  T239] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   34.064157][  T239] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   34.064352][  T239] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   34.064543][  T239] RDX: 0000000000406580 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   34.064797][  T239] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   34.064989][  T239] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   34.065179][  T239] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   34.069186][  T239] ------------[ cut here ]------------
| [   34.069367][  T239] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/239
| [   34.069679][  T239] Modules linked in:
| [   34.070202][  T239] Tainted: [W]=WARN
[   34.070348][  T239] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   34.070556][  T239] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   34.070797][  T239] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   34.071310][  T239] RSP: 0018:ffa00000009678f8 EFLAGS: 00010286
[   34.071524][  T239] RAX: 00000000ffffffa6 RBX: ff1100000bc591c0 RCX: 1ff400000012cee5
[   34.071785][  T239] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bc5927c
[   34.072036][  T239] RBP: ff11000001dd4000 R08: 1fe220000178b251 R09: ff11000010022e80
[   34.072282][  T239] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   34.072522][  T239] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000001dd4000
[   34.072786][  T239] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   34.073065][  T239] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   34.073276][  T239] CR2: 00000000004090e8 CR3: 000000000c1a0005 CR4: 0000000000771ef0
[   34.073523][  T239] PKRU: 55555554
[   34.073674][  T239] Call Trace:
[   34.073834][  T239]  <TASK>
[   34.073949][  T239]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   34.074129][  T239]  ? notifier_call_chain (kernel/notifier.c:85)
[   34.074307][  T239]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   34.074455][  T239]  register_netdevice (net/core/dev.c:11488)
[   34.074638][  T239]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   34.074870][  T239]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   34.075051][  T239]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   34.075230][  T239]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   34.075409][  T239]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   34.075589][  T239]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   34.075790][  T239]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   34.075975][  T239]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   34.076155][  T239]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   34.076335][  T239]  vti_init_net (net/ipv4/ip_vti.c:517)
[   34.076515][  T239]  ops_init (net/core/net_namespace.c:137)
[   34.076670][  T239]  setup_net (net/core/net_namespace.c:446)
[   34.076834][  T239]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   34.077014][  T239]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   34.077195][  T239]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   34.077381][  T239]  copy_net_ns (net/core/net_namespace.c:579)
[   34.077563][  T239]  create_new_namespaces (kernel/nsproxy.c:132)
[   34.077764][  T239]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   34.077947][  T239]  ksys_unshare (kernel/fork.c:3243)
[   34.078126][  T239]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   34.078306][  T239]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   34.078483][  T239]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   34.078673][  T239]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   34.078866][  T239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   34.079046][  T239]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   34.079224][  T239]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   34.079402][  T239]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   34.079581][  T239]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   34.079784][  T239]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   34.079967][  T239]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   34.080182][  T239] RIP: 0033:0x7fa0a8f22bcb
[   34.080366][  T239] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   34.080900][  T239] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   34.081149][  T239] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   34.081391][  T239] RDX: 0000000000406580 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   34.081634][  T239] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   34.081897][  T239] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   34.082138][  T239] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   34.094335][  T239] ------------[ cut here ]------------
| [   34.094513][  T239] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/239
| [   34.094832][  T239] Modules linked in:
| [   34.095318][  T239] Tainted: [W]=WARN
[   34.095463][  T239] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   34.095678][  T239] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   34.095908][  T239] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   34.096409][  T239] RSP: 0018:ffa0000000967a78 EFLAGS: 00010286
[   34.096624][  T239] RAX: 00000000ffffffa6 RBX: ff1100000bccc3c0 RCX: 1ff400000012cf15
[   34.096886][  T239] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bccc47c
[   34.097126][  T239] RBP: ff1100000fabc000 R08: 1fe2200001799891 R09: ff11000010022e80
[   34.097368][  T239] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   34.097609][  T239] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fabc000
[   34.097871][  T239] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   34.098147][  T239] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   34.098357][  T239] CR2: 00000000004090e8 CR3: 000000000c1a0005 CR4: 0000000000771ef0
[   34.098599][  T239] PKRU: 55555554
[   34.098761][  T239] Call Trace:
[   34.098906][  T239]  <TASK>
[   34.099022][  T239]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   34.099202][  T239]  ? notifier_call_chain (kernel/notifier.c:85)
[   34.099380][  T239]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   34.099528][  T239]  register_netdevice (net/core/dev.c:11488)
[   34.099714][  T239]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   34.099936][  T239]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   34.100116][  T239]  register_netdev (net/core/dev.c:11552)
[   34.100294][  T239]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   34.100473][  T239]  ops_init (net/core/net_namespace.c:137)
[   34.100622][  T239]  setup_net (net/core/net_namespace.c:446)
[   34.100786][  T239]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   34.100961][  T239]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   34.101138][  T239]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   34.101317][  T239]  copy_net_ns (net/core/net_namespace.c:579)
[   34.101495][  T239]  create_new_namespaces (kernel/nsproxy.c:132)
[   34.101686][  T239]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   34.101877][  T239]  ksys_unshare (kernel/fork.c:3243)
[   34.102054][  T239]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   34.102230][  T239]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   34.102405][  T239]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   34.102583][  T239]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   34.102784][  T239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   34.102966][  T239]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   34.103142][  T239]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   34.103317][  T239]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   34.103494][  T239]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   34.103676][  T239]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   34.103866][  T239]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   34.104072][  T239] RIP: 0033:0x7fa0a8f22bcb
[   34.104254][  T239] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   34.104783][  T239] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   34.105026][  T239] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   34.105265][  T239] RDX: 0000000000406580 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   34.105505][  T239] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   34.105766][  T239] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   34.106009][  T239] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   34.110596][  T239] ------------[ cut here ]------------
| [   34.110784][  T239] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/239
| [   34.111085][  T239] Modules linked in:
| [   34.111574][  T239] Tainted: [W]=WARN
[   34.111726][  T239] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   34.111949][  T239] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   34.112165][  T239] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   34.112678][  T239] RSP: 0018:ffa0000000967a68 EFLAGS: 00010286
[   34.112903][  T239] RAX: 00000000ffffffa6 RBX: ff1100000bcccc80 RCX: 1ff400000012cf13
[   34.113143][  T239] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bcccd3c
[   34.113383][  T239] RBP: ff1100000a90c000 R08: 1fe22000017999a9 R09: ff11000010022e80
[   34.113623][  T239] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   34.113882][  T239] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a90c000
[   34.114125][  T239] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   34.114400][  T239] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   34.114610][  T239] CR2: 00000000004090e8 CR3: 000000000c1a0005 CR4: 0000000000771ef0
[   34.114872][  T239] PKRU: 55555554
[   34.115017][  T239] Call Trace:
[   34.115161][  T239]  <TASK>
[   34.115276][  T239]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   34.115453][  T239]  ? notifier_call_chain (kernel/notifier.c:85)
[   34.115630][  T239]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   34.115797][  T239]  register_netdevice (net/core/dev.c:11488)
[   34.115977][  T239]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   34.116191][  T239]  register_netdev (net/core/dev.c:11552)
[   34.116369][  T239]  sit_init_net (net/ipv6/sit.c:1860)
[   34.116548][  T239]  ops_init (net/core/net_namespace.c:137)
[   34.116701][  T239]  setup_net (net/core/net_namespace.c:446)
[   34.116857][  T239]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   34.117032][  T239]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   34.117209][  T239]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   34.117392][  T239]  copy_net_ns (net/core/net_namespace.c:579)
[   34.117571][  T239]  create_new_namespaces (kernel/nsproxy.c:132)
[   34.117770][  T239]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   34.117950][  T239]  ksys_unshare (kernel/fork.c:3243)
[   34.118127][  T239]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   34.118304][  T239]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   34.118478][  T239]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   34.118667][  T239]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   34.118861][  T239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   34.119040][  T239]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   34.119216][  T239]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   34.119392][  T239]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   34.119568][  T239]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   34.119766][  T239]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   34.119944][  T239]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   34.120153][  T239] RIP: 0033:0x7fa0a8f22bcb
[   34.120336][  T239] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   34.120863][  T239] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   34.121108][  T239] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   34.121346][  T239] RDX: 0000000000406580 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   34.121587][  T239] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   34.121846][  T239] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   34.122086][  T239] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   34.127188][  T239] ------------[ cut here ]------------
| [   34.127366][  T239] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: scm_rights/239
| [   34.127681][  T239] Modules linked in:
| [   34.128190][  T239] Tainted: [W]=WARN
[   34.128335][  T239] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   34.128545][  T239] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   34.128785][  T239] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   34.129292][  T239] RSP: 0018:ffa0000000967a78 EFLAGS: 00010286
[   34.129504][  T239] RAX: 00000000ffffffa6 RBX: ff1100000bba8e40 RCX: 1ff400000012cf15
[   34.129768][  T239] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bba8efc
[   34.130007][  T239] RBP: ff11000007874000 R08: 1fe22000017751e1 R09: ff11000010022e80
[   34.130249][  T239] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   34.130488][  T239] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000007874000
[   34.130752][  T239] FS:  00007fa0a8e27740(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   34.131030][  T239] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   34.131241][  T239] CR2: 00000000004090e8 CR3: 000000000c1a0005 CR4: 0000000000771ef0
[   34.131486][  T239] PKRU: 55555554
[   34.131629][  T239] Call Trace:
[   34.131795][  T239]  <TASK>
[   34.131909][  T239]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   34.132091][  T239]  ? notifier_call_chain (kernel/notifier.c:85)
[   34.132267][  T239]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   34.132415][  T239]  register_netdevice (net/core/dev.c:11488)
[   34.132593][  T239]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   34.132824][  T239]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   34.133006][  T239]  register_netdev (net/core/dev.c:11552)
[   34.133183][  T239]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   34.133365][  T239]  ops_init (net/core/net_namespace.c:137)
[   34.133513][  T239]  setup_net (net/core/net_namespace.c:446)
[   34.133665][  T239]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   34.133852][  T239]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   34.134030][  T239]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   34.134209][  T239]  copy_net_ns (net/core/net_namespace.c:579)
[   34.134388][  T239]  create_new_namespaces (kernel/nsproxy.c:132)
[   34.134571][  T239]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   34.134770][  T239]  ksys_unshare (kernel/fork.c:3243)
[   34.134948][  T239]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   34.135126][  T239]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   34.135304][  T239]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   34.135482][  T239]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   34.135669][  T239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   34.135865][  T239]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   34.136042][  T239]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   34.136219][  T239]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   34.136395][  T239]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   34.136571][  T239]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   34.136769][  T239]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   34.136977][  T239] RIP: 0033:0x7fa0a8f22bcb
[   34.137160][  T239] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   34.137675][  T239] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   34.137932][  T239] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   34.138174][  T239] RDX: 0000000000406580 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   34.138416][  T239] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   34.138663][  T239] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   34.138916][  T239] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   35.154816][   T12] ------------[ cut here ]------------
| [   35.154982][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   35.155231][   T12] Modules linked in:
| [   35.155609][   T12] Tainted: [W]=WARN
[   35.155705][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.155869][   T12] Workqueue: netns cleanup_net
[   35.155996][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.156152][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.156586][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   35.156749][   T12] RAX: 00000000ffffffa6 RBX: ff1100000bea1700 RCX: 1ff4000000018eed
[   35.156936][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bea17bc
[   35.157118][   T12] RBP: ff11000007874000 R08: 1fe22000017d42f9 R09: ff11000001aed1d0
[   35.157293][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   35.157472][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.157668][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   35.157896][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.158043][   T12] CR2: 00000000004090e8 CR3: 0000000044d4d002 CR4: 0000000000771ef0
[   35.158233][   T12] PKRU: 55555554
[   35.158323][   T12] Call Trace:
[   35.158422][   T12]  <TASK>
[   35.158485][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.158636][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.158805][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   35.158926][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   35.159047][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   35.159174][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   35.159294][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.159417][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   35.159538][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   35.159657][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.159788][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   35.159908][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.160026][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.160161][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.160291][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.160418][   T12]  process_one_work (kernel/workqueue.c:3314)
[   35.160543][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.160670][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.160813][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.160951][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.161068][   T12]  kthread (kernel/kthread.c:436)
[   35.161157][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.161308][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.161428][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.161552][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.161703][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.161827][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.161945][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.164252][   T12] ------------[ cut here ]------------
| [   35.164379][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   35.164623][   T12] Modules linked in:
| [   35.165061][   T12] Tainted: [W]=WARN
[   35.165155][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.165301][   T12] Workqueue: netns cleanup_net
[   35.165437][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.165614][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.166054][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   35.166204][   T12] RAX: 00000000ffffffa6 RBX: ff1100000bea1000 RCX: 1ff4000000018eed
[   35.166387][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bea10bc
[   35.166571][   T12] RBP: ff1100000a90c000 R08: 1fe22000017d4219 R09: ff11000001aed1d0
[   35.166765][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   35.166941][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.167132][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   35.167336][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.167489][   T12] CR2: 00000000004090e8 CR3: 0000000044d4d002 CR4: 0000000000771ef0
[   35.167692][   T12] PKRU: 55555554
[   35.167791][   T12] Call Trace:
[   35.167879][   T12]  <TASK>
[   35.167950][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.168099][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.168256][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   35.168383][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   35.168512][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   35.168636][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   35.168769][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.168898][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   35.169030][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   35.169146][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.169269][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   35.169393][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.169514][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.169639][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.169769][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.169894][   T12]  process_one_work (kernel/workqueue.c:3314)
[   35.170016][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.170133][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.170261][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.170390][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.170522][   T12]  kthread (kernel/kthread.c:436)
[   35.170611][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.170786][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.170914][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.171032][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.171195][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.171313][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.171432][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.173595][   T12] ------------[ cut here ]------------
| [   35.173715][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   35.173946][   T12] Modules linked in:
| [   35.174303][   T12] Tainted: [W]=WARN
[   35.174390][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.174537][   T12] Workqueue: netns cleanup_net
[   35.174661][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.174823][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.175238][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   35.175385][   T12] RAX: 00000000ffffffa6 RBX: ff1100000e4afe00 RCX: 1ff4000000018eed
[   35.175558][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e4afebc
[   35.175742][   T12] RBP: ff1100000fabc000 R08: 1fe2200001c95fd9 R09: ff11000001aed1d0
[   35.175915][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   35.176092][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.176266][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   35.176471][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.176620][   T12] CR2: 00000000004090e8 CR3: 0000000044d4d002 CR4: 0000000000771ef0
[   35.176801][   T12] PKRU: 55555554
[   35.176893][   T12] Call Trace:
[   35.176979][   T12]  <TASK>
[   35.177040][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.177187][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.177333][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   35.177449][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   35.177567][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   35.177689][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   35.177810][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.177930][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   35.178047][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   35.178163][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.178282][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   35.178399][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.178518][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.178635][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.178760][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.178879][   T12]  process_one_work (kernel/workqueue.c:3314)
[   35.179003][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.179129][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.179249][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.179368][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.179484][   T12]  kthread (kernel/kthread.c:436)
[   35.179572][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.179720][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.179842][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.179959][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.180104][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.180221][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.180343][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.182305][   T12] ------------[ cut here ]------------
| [   35.182418][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   35.182640][   T12] Modules linked in:
| [   35.182998][   T12] Tainted: [W]=WARN
[   35.183086][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.183230][   T12] Workqueue: netns cleanup_net
[   35.183350][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.183500][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.183924][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   35.184072][   T12] RAX: 00000000ffffffa6 RBX: ff1100000e4afa80 RCX: 1ff4000000018eed
[   35.184244][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e4afb3c
[   35.184422][   T12] RBP: ff11000001dd4000 R08: 1fe2200001c95f69 R09: ff11000001aed1d0
[   35.184594][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   35.184773][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.184947][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   35.185147][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.185291][   T12] CR2: 00000000004090e8 CR3: 0000000044d4d002 CR4: 0000000000771ef0
[   35.185464][   T12] PKRU: 55555554
[   35.185552][   T12] Call Trace:
[   35.185637][   T12]  <TASK>
[   35.185700][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.185851][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.185994][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   35.186109][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   35.186227][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   35.186342][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   35.186459][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.186580][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   35.186700][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   35.186819][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.186939][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   35.187056][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.187171][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.187287][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.187403][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.187522][   T12]  process_one_work (kernel/workqueue.c:3314)
[   35.187641][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.187766][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.187886][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.188005][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.188121][   T12]  kthread (kernel/kthread.c:436)
[   35.188209][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.188353][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.188470][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.188592][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.188748][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.188866][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.188989][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.190929][   T12] ------------[ cut here ]------------
| [   35.191114][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   35.191344][   T12] Modules linked in:
| [   35.191775][   T12] Tainted: [W]=WARN
[   35.191892][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.192036][   T12] Workqueue: netns cleanup_net
[   35.192233][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.192386][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.192892][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   35.193036][   T12] RAX: 00000000ffffffa6 RBX: ff1100000e4af700 RCX: 1ff4000000018eed
[   35.193282][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e4af7bc
[   35.193454][   T12] RBP: ff11000011c9c000 R08: 1fe2200001c95ef9 R09: ff11000001aed1d0
[   35.193626][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   35.193805][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.193980][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   35.194184][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.194403][   T12] CR2: 00000000004090e8 CR3: 0000000044d4d002 CR4: 0000000000771ef0
[   35.194574][   T12] PKRU: 55555554
[   35.194663][   T12] Call Trace:
[   35.194763][   T12]  <TASK>
[   35.194823][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.194971][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.195113][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   35.195304][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   35.195421][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   35.195537][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   35.195656][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.195850][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   35.195969][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   35.196082][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.196199][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   35.196385][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.196501][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.196616][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.196738][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.196939][   T12]  process_one_work (kernel/workqueue.c:3314)
[   35.197058][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.197173][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.197292][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.197481][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.197596][   T12]  kthread (kernel/kthread.c:436)
[   35.197686][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.197839][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.198025][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.198141][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.198284][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.198400][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.198587][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.212142][  T241] ------------[ cut here ]------------
| [   35.212291][  T241] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: scm_rights/241
| [   35.212547][  T241] Modules linked in:
| [   35.212956][  T241] Tainted: [W]=WARN
[   35.213055][  T241] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.213217][  T241] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.213388][  T241] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.213861][  T241] RSP: 0018:ffa0000000957a80 EFLAGS: 00010286
[   35.214024][  T241] RAX: 00000000ffffffa6 RBX: ff1100000ab57c40 RCX: 1ff400000012af16
[   35.214217][  T241] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ab57cfc
[   35.214410][  T241] RBP: ff1100000a83c000 R08: 1fe220000156afa1 R09: ff11000009b4d180
[   35.214601][  T241] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   35.214804][  T241] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a83c000
[   35.214999][  T241] FS:  00007fa0a8e27740(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   35.215227][  T241] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.215391][  T241] CR2: 00007fa0a8f22bc0 CR3: 000000000abc5005 CR4: 0000000000771ef0
[   35.215587][  T241] PKRU: 55555554
[   35.215692][  T241] Call Trace:
[   35.215794][  T241]  <TASK>
[   35.215863][  T241]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.216082][  T241]  ? notifier_call_chain (kernel/notifier.c:85)
[   35.216213][  T241]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.216313][  T241]  register_netdevice (net/core/dev.c:11488)
[   35.216444][  T241]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   35.216698][  T241]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   35.216837][  T241]  register_netdev (net/core/dev.c:11552)
[   35.216969][  T241]  loopback_net_init (drivers/net/loopback.c:218)
[   35.217104][  T241]  ops_init (net/core/net_namespace.c:137)
[   35.217291][  T241]  setup_net (net/core/net_namespace.c:446)
[   35.217393][  T241]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   35.217522][  T241]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   35.217655][  T241]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   35.217881][  T241]  copy_net_ns (net/core/net_namespace.c:579)
[   35.218014][  T241]  create_new_namespaces (kernel/nsproxy.c:132)
[   35.218146][  T241]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   35.218277][  T241]  ksys_unshare (kernel/fork.c:3243)
[   35.218407][  T241]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   35.218623][  T241]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   35.218775][  T241]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.218905][  T241]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   35.219036][  T241]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.219253][  T241]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   35.219380][  T241]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   35.219510][  T241]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   35.219640][  T241]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   35.219865][  T241]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   35.219996][  T241]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.220156][  T241] RIP: 0033:0x7fa0a8f22bcb
[   35.220385][  T241] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   35.220857][  T241] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   35.221145][  T241] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   35.221337][  T241] RDX: 00000000004065e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   35.221621][  T241] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   35.221826][  T241] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   35.222020][  T241] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   35.234132][  T241] ------------[ cut here ]------------
| [   35.234271][  T241] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: scm_rights/241
| [   35.234528][  T241] Modules linked in:
| [   35.234932][  T241] Tainted: [W]=WARN
[   35.235029][  T241] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.235192][  T241] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.235363][  T241] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.235830][  T241] RSP: 0018:ffa0000000957918 EFLAGS: 00010286
[   35.235992][  T241] RAX: 00000000ffffffa6 RBX: ff1100000cfbcac0 RCX: 1ff400000012aee9
[   35.236185][  T241] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cfbcb7c
[   35.236380][  T241] RBP: ff1100000f1f1000 R08: 1fe22000019f7971 R09: ff11000009b4d180
[   35.236573][  T241] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   35.236776][  T241] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f1f1000
[   35.236970][  T241] FS:  00007fa0a8e27740(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   35.237195][  T241] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.237358][  T241] CR2: 00007fa0a8f22bc0 CR3: 000000000abc5005 CR4: 0000000000771ef0
[   35.237553][  T241] PKRU: 55555554
[   35.237655][  T241] Call Trace:
[   35.237759][  T241]  <TASK>
[   35.237826][  T241]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.237955][  T241]  ? notifier_call_chain (kernel/notifier.c:85)
[   35.238085][  T241]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.238184][  T241]  register_netdevice (net/core/dev.c:11488)
[   35.238316][  T241]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   35.238477][  T241]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   35.238608][  T241]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   35.238747][  T241]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   35.238877][  T241]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   35.239007][  T241]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   35.239136][  T241]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   35.239270][  T241]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   35.239403][  T241]  ops_init (net/core/net_namespace.c:137)
[   35.239502][  T241]  setup_net (net/core/net_namespace.c:446)
[   35.239599][  T241]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   35.239800][  T241]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   35.240011][  T241]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   35.240143][  T241]  copy_net_ns (net/core/net_namespace.c:579)
[   35.240271][  T241]  create_new_namespaces (kernel/nsproxy.c:132)
[   35.240403][  T241]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   35.240532][  T241]  ksys_unshare (kernel/fork.c:3243)
[   35.240664][  T241]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   35.240850][  T241]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   35.240978][  T241]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.241106][  T241]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   35.241238][  T241]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.241371][  T241]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   35.241501][  T241]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   35.241630][  T241]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   35.241819][  T241]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   35.241950][  T241]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   35.242081][  T241]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.242240][  T241] RIP: 0033:0x7fa0a8f22bcb
[   35.242376][  T241] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   35.242898][  T241] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   35.243095][  T241] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   35.243286][  T241] RDX: 00000000004065e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   35.243477][  T241] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   35.243675][  T241] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   35.243907][  T241] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   35.245770][   T12] ------------[ cut here ]------------
| [   35.245894][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   35.246139][   T12] Modules linked in:
| [   35.246498][   T12] Tainted: [W]=WARN
[   35.246586][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.246747][   T12] Workqueue: netns cleanup_net
[   35.246870][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.247022][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.247440][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   35.247596][   T12] RAX: 00000000ffffffa6 RBX: ff11000010846040 RCX: 1ff4000000018ed5
[   35.247783][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000108460fc
[   35.247963][   T12] RBP: ff11000005084000 R08: 1fe2200002108c21 R09: ff11000001aed1d0
[   35.248138][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   35.248312][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.248489][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   35.248700][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.248904][   T12] CR2: 00000000004090e8 CR3: 0000000044d4d002 CR4: 0000000000771ef0
[   35.249082][   T12] PKRU: 55555554
[   35.249170][   T12] Call Trace:
[   35.249264][   T12]  <TASK>
[   35.249326][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.249476][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.249625][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   35.249812][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   35.249932][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   35.250051][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   35.250171][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   35.250291][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   35.250412][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   35.250529][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.250657][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   35.250830][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.250948][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.251068][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.251187][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.251307][   T12]  process_one_work (kernel/workqueue.c:3314)
[   35.251428][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.251550][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.251681][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.251851][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.251969][   T12]  kthread (kernel/kthread.c:436)
[   35.252060][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.252206][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.252323][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.252441][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.252594][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.252716][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.252882][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.257917][  T241] ------------[ cut here ]------------
| [   35.258056][  T241] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: scm_rights/241
| [   35.258315][  T241] Modules linked in:
| [   35.258718][  T241] Tainted: [W]=WARN
[   35.258822][  T241] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.258986][  T241] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.259154][  T241] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.259620][  T241] RSP: 0018:ffa00000009578f8 EFLAGS: 00010286
[   35.260379][  T241] RAX: 00000000ffffffa6 RBX: ff1100000bab1380 RCX: 1ff400000012aee5
[   35.260574][  T241] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bab143c
[   35.260830][  T241] RBP: ff1100000d251000 R08: 1fe2200001756289 R09: ff11000009b4d180
[   35.261024][  T241] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   35.261219][  T241] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000d251000
[   35.261415][  T241] FS:  00007fa0a8e27740(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   35.261645][  T241] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.261869][  T241] CR2: 00000000004090e8 CR3: 000000000abc5004 CR4: 0000000000771ef0
[   35.262065][  T241] PKRU: 55555554
[   35.262162][  T241] Call Trace:
[   35.262259][  T241]  <TASK>
[   35.262326][  T241]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.262458][  T241]  ? notifier_call_chain (kernel/notifier.c:85)
[   35.262646][  T241]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.262807][  T241]  register_netdevice (net/core/dev.c:11488)
[   35.262940][  T241]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   35.263101][  T241]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   35.263234][  T241]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   35.263364][  T241]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   35.263496][  T241]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   35.263629][  T241]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   35.263818][  T241]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   35.263951][  T241]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   35.264082][  T241]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   35.264215][  T241]  vti_init_net (net/ipv4/ip_vti.c:517)
[   35.264345][  T241]  ops_init (net/core/net_namespace.c:137)
[   35.264445][  T241]  setup_net (net/core/net_namespace.c:446)
[   35.264545][  T241]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   35.264681][  T241]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   35.264866][  T241]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   35.264998][  T241]  copy_net_ns (net/core/net_namespace.c:579)
[   35.265130][  T241]  create_new_namespaces (kernel/nsproxy.c:132)
[   35.265264][  T241]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   35.265396][  T241]  ksys_unshare (kernel/fork.c:3243)
[   35.265527][  T241]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   35.265664][  T241]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   35.265850][  T241]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.265981][  T241]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   35.266115][  T241]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.266249][  T241]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   35.266380][  T241]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   35.266510][  T241]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   35.266642][  T241]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   35.266833][  T241]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   35.266963][  T241]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.267126][  T241] RIP: 0033:0x7fa0a8f22bcb
[   35.267263][  T241] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   35.267795][  T241] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   35.267992][  T241] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   35.268188][  T241] RDX: 00000000004065e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   35.268383][  T241] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   35.268582][  T241] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   35.268839][  T241] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   35.279367][  T241] ------------[ cut here ]------------
| [   35.279503][  T241] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: scm_rights/241
| [   35.279784][  T241] Modules linked in:
| [   35.280180][  T241] Tainted: [W]=WARN
[   35.280279][  T241] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.280441][  T241] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.280611][  T241] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.281083][  T241] RSP: 0018:ffa0000000957a78 EFLAGS: 00010286
[   35.281247][  T241] RAX: 00000000ffffffa6 RBX: ff1100000b62f8c0 RCX: 1ff400000012af15
[   35.281441][  T241] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b62f97c
[   35.281636][  T241] RBP: ff1100000f2c9000 R08: 1fe22000016c5f31 R09: ff11000009b4d180
[   35.281843][  T241] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   35.282037][  T241] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f2c9000
[   35.282232][  T241] FS:  00007fa0a8e27740(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   35.282458][  T241] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.282619][  T241] CR2: 00000000004090e8 CR3: 000000000abc5004 CR4: 0000000000771ef0
[   35.282824][  T241] PKRU: 55555554
[   35.282921][  T241] Call Trace:
[   35.283017][  T241]  <TASK>
[   35.283084][  T241]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.283213][  T241]  ? notifier_call_chain (kernel/notifier.c:85)
[   35.283344][  T241]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.283444][  T241]  register_netdevice (net/core/dev.c:11488)
[   35.283578][  T241]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   35.283746][  T241]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.283879][  T241]  register_netdev (net/core/dev.c:11552)
[   35.284010][  T241]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   35.284144][  T241]  ops_init (net/core/net_namespace.c:137)
[   35.284246][  T241]  setup_net (net/core/net_namespace.c:446)
[   35.284343][  T241]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   35.284475][  T241]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   35.284606][  T241]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   35.284746][  T241]  copy_net_ns (net/core/net_namespace.c:579)
[   35.284878][  T241]  create_new_namespaces (kernel/nsproxy.c:132)
[   35.285011][  T241]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   35.285142][  T241]  ksys_unshare (kernel/fork.c:3243)
[   35.285272][  T241]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   35.285405][  T241]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   35.285536][  T241]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.285669][  T241]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   35.285806][  T241]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.285937][  T241]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   35.286066][  T241]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   35.286195][  T241]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   35.286324][  T241]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   35.286454][  T241]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   35.286584][  T241]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.286756][  T241] RIP: 0033:0x7fa0a8f22bcb
[   35.286890][  T241] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   35.287350][  T241] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   35.287546][  T241] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   35.287746][  T241] RDX: 00000000004065e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   35.287939][  T241] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   35.288133][  T241] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   35.288327][  T241] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   35.302622][  T241] ------------[ cut here ]------------
| [   35.302786][  T241] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/241
| [   35.303043][  T241] Modules linked in:
| [   35.303444][  T241] Tainted: [W]=WARN
[   35.303543][  T241] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.303711][  T241] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.303884][  T241] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.304353][  T241] RSP: 0018:ffa0000000957a68 EFLAGS: 00010286
[   35.304517][  T241] RAX: 00000000ffffffa6 RBX: ff1100000ab74c80 RCX: 1ff400000012af13
[   35.304716][  T241] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ab74d3c
[   35.304917][  T241] RBP: ff11000008c11000 R08: 1fe220000156e9a9 R09: ff11000009b4d180
[   35.305111][  T241] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   35.305303][  T241] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008c11000
[   35.305498][  T241] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   35.305727][  T241] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.305894][  T241] CR2: 00007fa0a8f22bc0 CR3: 000000000abc5003 CR4: 0000000000771ef0
[   35.306090][  T241] PKRU: 55555554
[   35.306186][  T241] Call Trace:
[   35.306283][  T241]  <TASK>
[   35.306350][  T241]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.306480][  T241]  ? notifier_call_chain (kernel/notifier.c:85)
[   35.306610][  T241]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.306714][  T241]  register_netdevice (net/core/dev.c:11488)
[   35.306851][  T241]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   35.307016][  T241]  register_netdev (net/core/dev.c:11552)
[   35.307147][  T241]  sit_init_net (net/ipv6/sit.c:1860)
[   35.307279][  T241]  ops_init (net/core/net_namespace.c:137)
[   35.307379][  T241]  setup_net (net/core/net_namespace.c:446)
[   35.307479][  T241]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   35.307608][  T241]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   35.307748][  T241]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   35.307880][  T241]  copy_net_ns (net/core/net_namespace.c:579)
[   35.308012][  T241]  create_new_namespaces (kernel/nsproxy.c:132)
[   35.308143][  T241]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   35.308272][  T241]  ksys_unshare (kernel/fork.c:3243)
[   35.308402][  T241]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   35.308531][  T241]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   35.308664][  T241]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.308798][  T241]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   35.308929][  T241]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.309061][  T241]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   35.309193][  T241]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   35.309321][  T241]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   35.309450][  T241]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   35.309579][  T241]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   35.309714][  T241]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.309881][  T241] RIP: 0033:0x7fa0a8f22bcb
[   35.310017][  T241] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   35.310475][  T241] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   35.310674][  T241] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   35.310873][  T241] RDX: 00000000004065e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   35.311066][  T241] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   35.311260][  T241] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   35.311454][  T241] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   35.316123][  T241] ------------[ cut here ]------------
| [   35.316259][  T241] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/241
| [   35.316514][  T241] Modules linked in:
| [   35.316919][  T241] Tainted: [W]=WARN
[   35.317017][  T241] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.317179][  T241] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.317348][  T241] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.317815][  T241] RSP: 0018:ffa0000000957a78 EFLAGS: 00010286
[   35.317980][  T241] RAX: 00000000ffffffa6 RBX: ff1100000a88da80 RCX: 1ff400000012af15
[   35.318174][  T241] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a88db3c
[   35.318368][  T241] RBP: ff11000008d94000 R08: 1fe2200001511b69 R09: ff11000009b4d180
[   35.318562][  T241] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   35.319275][  T241] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008d94000
[   35.319472][  T241] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   35.319703][  T241] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.319923][  T241] CR2: 00007fa0a8f22bc0 CR3: 000000000abc5003 CR4: 0000000000771ef0
[   35.320119][  T241] PKRU: 55555554
[   35.320215][  T241] Call Trace:
[   35.320312][  T241]  <TASK>
[   35.320380][  T241]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.320510][  T241]  ? notifier_call_chain (kernel/notifier.c:85)
[   35.320639][  T241]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.320796][  T241]  register_netdevice (net/core/dev.c:11488)
[   35.320983][  T241]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   35.321145][  T241]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.321277][  T241]  register_netdev (net/core/dev.c:11552)
[   35.321406][  T241]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   35.321537][  T241]  ops_init (net/core/net_namespace.c:137)
[   35.321636][  T241]  setup_net (net/core/net_namespace.c:446)
[   35.321793][  T241]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   35.321925][  T241]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   35.322054][  T241]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   35.322185][  T241]  copy_net_ns (net/core/net_namespace.c:579)
[   35.322318][  T241]  create_new_namespaces (kernel/nsproxy.c:132)
[   35.322451][  T241]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   35.322581][  T241]  ksys_unshare (kernel/fork.c:3243)
[   35.322713][  T241]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   35.322898][  T241]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   35.323029][  T241]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.323160][  T241]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   35.323292][  T241]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.323424][  T241]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   35.323554][  T241]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   35.323689][  T241]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   35.323875][  T241]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   35.324006][  T241]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   35.324134][  T241]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.324295][  T241] RIP: 0033:0x7fa0a8f22bcb
[   35.324430][  T241] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   35.324956][  T241] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   35.325153][  T241] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   35.325346][  T241] RDX: 00000000004065e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   35.325540][  T241] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   35.325798][  T241] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   35.325992][  T241] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   35.345221][   T12] ------------[ cut here ]------------
| [   35.345392][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   35.345679][   T12] Modules linked in:
| [   35.346185][   T12] Tainted: [W]=WARN
[   35.346320][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.346512][   T12] Workqueue: netns cleanup_net
[   35.346690][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.346905][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.347366][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   35.347561][   T12] RAX: 00000000ffffffa6 RBX: ff1100000a1aa900 RCX: 1ff4000000018eed
[   35.347801][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a1aa9bc
[   35.348020][   T12] RBP: ff11000008d94000 R08: 1fe2200001435539 R09: ff11000001aed1d0
[   35.348240][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   35.348463][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.348694][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   35.348957][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.349153][   T12] CR2: 00000000004090e8 CR3: 0000000044d4d006 CR4: 0000000000771ef0
[   35.349381][   T12] PKRU: 55555554
[   35.349512][   T12] Call Trace:
[   35.349645][   T12]  <TASK>
[   35.349773][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.349970][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.350159][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   35.350325][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   35.350490][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   35.350660][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   35.350843][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.351010][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   35.351175][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   35.351336][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.351504][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   35.351675][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.351849][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.352014][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.352177][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.352342][   T12]  process_one_work (kernel/workqueue.c:3314)
[   35.352510][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.352677][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.352864][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.353031][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.353194][   T12]  kthread (kernel/kthread.c:436)
[   35.353329][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.353521][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.353692][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.353871][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.354066][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.354230][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.354396][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.356993][   T12] ------------[ cut here ]------------
| [   35.357155][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   35.357428][   T12] Modules linked in:
| [   35.357895][   T12] Tainted: [W]=WARN
[   35.358030][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.358223][   T12] Workqueue: netns cleanup_net
[   35.358389][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.358586][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.359059][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   35.359253][   T12] RAX: 00000000ffffffa6 RBX: ff1100000a1ab000 RCX: 1ff4000000018eed
[   35.359471][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a1ab0bc
[   35.359695][   T12] RBP: ff11000008c11000 R08: 1fe2200001435619 R09: ff11000001aed1d0
[   35.359927][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   35.360148][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.360367][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   35.360615][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.360825][   T12] CR2: 00000000004090e8 CR3: 0000000044d4d006 CR4: 0000000000771ef0
[   35.361049][   T12] PKRU: 55555554
[   35.361181][   T12] Call Trace:
[   35.361313][   T12]  <TASK>
[   35.361419][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.361615][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.361824][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   35.361990][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   35.362157][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   35.362320][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   35.362487][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.362659][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   35.362837][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   35.362999][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.363166][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   35.363332][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.363494][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.363668][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.363841][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.364005][   T12]  process_one_work (kernel/workqueue.c:3314)
[   35.364173][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.364335][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.364503][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.364677][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.364853][   T12]  kthread (kernel/kthread.c:436)
[   35.364991][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.365184][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.365349][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.365514][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.365714][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.365891][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.366057][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.368727][   T12] ------------[ cut here ]------------
| [   35.368896][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   35.369172][   T12] Modules linked in:
| [   35.369615][   T12] Tainted: [W]=WARN
[   35.369767][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.369959][   T12] Workqueue: netns cleanup_net
[   35.370126][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.370325][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.370796][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   35.370988][   T12] RAX: 00000000ffffffa6 RBX: ff1100000a1ab700 RCX: 1ff4000000018eed
[   35.371207][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a1ab7bc
[   35.371426][   T12] RBP: ff1100000f2c9000 R08: 1fe22000014356f9 R09: ff11000001aed1d0
[   35.371646][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   35.371884][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.372106][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   35.372352][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.372544][   T12] CR2: 00000000004090e8 CR3: 0000000044d4d006 CR4: 0000000000771ef0
[   35.372784][   T12] PKRU: 55555554
[   35.372916][   T12] Call Trace:
[   35.373049][   T12]  <TASK>
[   35.373156][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.373352][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.373540][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   35.373710][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   35.373888][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   35.374054][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   35.374219][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.374385][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   35.374554][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   35.374721][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.374902][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   35.375068][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.375230][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.375393][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.375554][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.375726][   T12]  process_one_work (kernel/workqueue.c:3314)
[   35.375909][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.376070][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.376236][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.376404][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.376566][   T12]  kthread (kernel/kthread.c:436)
[   35.376708][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.376910][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.377077][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.377242][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.377432][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.377593][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.377777][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.380140][   T12] ------------[ cut here ]------------
| [   35.380295][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   35.380564][   T12] Modules linked in:
| [   35.381026][   T12] Tainted: [W]=WARN
[   35.381158][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.381347][   T12] Workqueue: netns cleanup_net
[   35.381514][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.381717][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.382189][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   35.382383][   T12] RAX: 00000000ffffffa6 RBX: ff1100000a1aba80 RCX: 1ff4000000018eed
[   35.382600][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a1abb3c
[   35.382838][   T12] RBP: ff1100000d251000 R08: 1fe2200001435769 R09: ff11000001aed1d0
[   35.383059][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   35.383274][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.383492][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   35.383758][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.383952][   T12] CR2: 00000000004090e8 CR3: 0000000044d4d006 CR4: 0000000000771ef0
[   35.384172][   T12] PKRU: 55555554
[   35.384305][   T12] Call Trace:
[   35.384437][   T12]  <TASK>
[   35.384542][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.384759][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.384948][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   35.385114][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   35.385278][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   35.385440][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   35.385602][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.385785][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   35.385951][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   35.386111][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.386277][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   35.386446][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.386605][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.386786][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.386950][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.387114][   T12]  process_one_work (kernel/workqueue.c:3314)
[   35.387280][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.387442][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.387611][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.387802][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.387963][   T12]  kthread (kernel/kthread.c:436)
[   35.388096][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.388288][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.388451][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.388615][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.388827][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.388992][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.389154][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.391507][   T12] ------------[ cut here ]------------
| [   35.391673][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   35.391958][   T12] Modules linked in:
| [   35.392397][   T12] Tainted: [W]=WARN
[   35.392530][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.392744][   T12] Workqueue: netns cleanup_net
[   35.392911][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.393108][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.393566][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   35.393781][   T12] RAX: 00000000ffffffa6 RBX: ff1100000a1abe00 RCX: 1ff4000000018eed
[   35.394001][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a1abebc
[   35.394220][   T12] RBP: ff1100000f1f1000 R08: 1fe22000014357d9 R09: ff11000001aed1d0
[   35.394438][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   35.394666][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.394904][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   35.395154][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.395347][   T12] CR2: 00000000004090e8 CR3: 0000000044d4d006 CR4: 0000000000771ef0
[   35.395571][   T12] PKRU: 55555554
[   35.395713][   T12] Call Trace:
[   35.395861][   T12]  <TASK>
[   35.395970][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.396165][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.396354][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   35.396518][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   35.396690][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   35.396866][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   35.397032][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.397198][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   35.397364][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   35.397526][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.397700][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   35.397874][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.398036][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.398203][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.398368][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.398533][   T12]  process_one_work (kernel/workqueue.c:3314)
[   35.398707][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.398885][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.399055][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.399223][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.399387][   T12]  kthread (kernel/kthread.c:436)
[   35.399524][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.399722][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.399900][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.400064][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.400256][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.400419][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.400587][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.409209][  T243] ------------[ cut here ]------------
| [   35.409356][  T243] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: scm_rights/243
| [   35.409617][  T243] Modules linked in:
| [   35.410026][  T243] Tainted: [W]=WARN
[   35.410124][  T243] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.410287][  T243] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.410458][  T243] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.410930][  T243] RSP: 0018:ffa0000000907a80 EFLAGS: 00010286
[   35.411093][  T243] RAX: 00000000ffffffa6 RBX: ff11000009642200 RCX: 1ff4000000120f16
[   35.411286][  T243] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000096422bc
[   35.411481][  T243] RBP: ff1100000a3a4000 R08: 1fe22000012c8459 R09: ff11000009b5ae80
[   35.411680][  T243] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   35.411879][  T243] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a3a4000
[   35.412076][  T243] FS:  00007fa0a8e27740(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   35.412306][  T243] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.412469][  T243] CR2: 00007fa0a8f22bc0 CR3: 000000000abc5006 CR4: 0000000000771ef0
[   35.412668][  T243] PKRU: 55555554
[   35.412772][  T243] Call Trace:
[   35.412869][  T243]  <TASK>
[   35.412936][  T243]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.413068][  T243]  ? notifier_call_chain (kernel/notifier.c:85)
[   35.413198][  T243]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.413297][  T243]  register_netdevice (net/core/dev.c:11488)
[   35.413429][  T243]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   35.413591][  T243]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   35.413730][  T243]  register_netdev (net/core/dev.c:11552)
[   35.413866][  T243]  loopback_net_init (drivers/net/loopback.c:218)
[   35.414000][  T243]  ops_init (net/core/net_namespace.c:137)
[   35.414101][  T243]  setup_net (net/core/net_namespace.c:446)
[   35.414200][  T243]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   35.414329][  T243]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   35.414460][  T243]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   35.414592][  T243]  copy_net_ns (net/core/net_namespace.c:579)
[   35.414729][  T243]  create_new_namespaces (kernel/nsproxy.c:132)
[   35.414870][  T243]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   35.415001][  T243]  ksys_unshare (kernel/fork.c:3243)
[   35.415132][  T243]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   35.415262][  T243]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   35.415392][  T243]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.415523][  T243]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   35.415661][  T243]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.415799][  T243]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   35.415932][  T243]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   35.416062][  T243]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   35.416192][  T243]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   35.416323][  T243]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   35.416452][  T243]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.416615][  T243] RIP: 0033:0x7fa0a8f22bcb
[   35.416763][  T243] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   35.417227][  T243] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   35.417424][  T243] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   35.417619][  T243] RDX: 00000000004065e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   35.417825][  T243] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   35.418019][  T243] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   35.418213][  T243] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   35.422101][  T243] ------------[ cut here ]------------
| [   35.422237][  T243] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: scm_rights/243
| [   35.422491][  T243] Modules linked in:
| [   35.422891][  T243] Tainted: [W]=WARN
[   35.422988][  T243] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.423148][  T243] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.423314][  T243] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.423780][  T243] RSP: 0018:ffa0000000907918 EFLAGS: 00010286
[   35.423943][  T243] RAX: 00000000ffffffa6 RBX: ff11000009642740 RCX: 1ff4000000120ee9
[   35.424135][  T243] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000096427fc
[   35.424326][  T243] RBP: ff11000002414000 R08: 1fe22000012c8501 R09: ff11000009b5ae80
[   35.424518][  T243] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   35.424715][  T243] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000002414000
[   35.424915][  T243] FS:  00007fa0a8e27740(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   35.425140][  T243] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.425302][  T243] CR2: 00007fa0a8f22bc0 CR3: 000000000abc5006 CR4: 0000000000771ef0
[   35.425498][  T243] PKRU: 55555554
[   35.425595][  T243] Call Trace:
[   35.425694][  T243]  <TASK>
[   35.425767][  T243]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.425896][  T243]  ? notifier_call_chain (kernel/notifier.c:85)
[   35.426025][  T243]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.426123][  T243]  register_netdevice (net/core/dev.c:11488)
[   35.426257][  T243]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   35.426417][  T243]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   35.426548][  T243]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   35.426680][  T243]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   35.426812][  T243]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   35.426942][  T243]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   35.427072][  T243]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   35.427204][  T243]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   35.427336][  T243]  ops_init (net/core/net_namespace.c:137)
[   35.427435][  T243]  setup_net (net/core/net_namespace.c:446)
[   35.427533][  T243]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   35.427664][  T243]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   35.427799][  T243]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   35.427930][  T243]  copy_net_ns (net/core/net_namespace.c:579)
[   35.428061][  T243]  create_new_namespaces (kernel/nsproxy.c:132)
[   35.428195][  T243]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   35.428326][  T243]  ksys_unshare (kernel/fork.c:3243)
[   35.428456][  T243]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   35.428586][  T243]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   35.428719][  T243]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.428856][  T243]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   35.428986][  T243]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.429119][  T243]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   35.429246][  T243]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   35.429375][  T243]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   35.429504][  T243]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   35.429633][  T243]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   35.429772][  T243]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.429933][  T243] RIP: 0033:0x7fa0a8f22bcb
[   35.430066][  T243] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   35.430523][  T243] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   35.430720][  T243] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   35.430917][  T243] RDX: 00000000004065e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   35.431108][  T243] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   35.431300][  T243] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   35.431491][  T243] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   35.442823][  T243] ------------[ cut here ]------------
| [   35.442961][  T243] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: scm_rights/243
| [   35.443221][  T243] Modules linked in:
| [   35.443625][  T243] Tainted: [W]=WARN
[   35.443728][  T243] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.443899][  T243] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.444070][  T243] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.444539][  T243] RSP: 0018:ffa00000009078f8 EFLAGS: 00010286
[   35.444710][  T243] RAX: 00000000ffffffa6 RBX: ff1100000e5d8040 RCX: 1ff4000000120ee5
[   35.444909][  T243] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e5d80fc
[   35.445106][  T243] RBP: ff1100001004c000 R08: 1fe2200001cbb021 R09: ff11000009b5ae80
[   35.445301][  T243] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   35.445498][  T243] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100001004c000
[   35.445700][  T243] FS:  00007fa0a8e27740(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   35.445934][  T243] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.446099][  T243] CR2: 00007fa0a8f22bc0 CR3: 000000000abc5006 CR4: 0000000000771ef0
[   35.446297][  T243] PKRU: 55555554
[   35.446397][  T243] Call Trace:
[   35.446496][  T243]  <TASK>
[   35.446564][  T243]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.446697][  T243]  ? notifier_call_chain (kernel/notifier.c:85)
[   35.446835][  T243]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.446936][  T243]  register_netdevice (net/core/dev.c:11488)
[   35.447072][  T243]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   35.447235][  T243]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   35.447368][  T243]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   35.447499][  T243]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   35.447629][  T243]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   35.447771][  T243]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   35.447903][  T243]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   35.448036][  T243]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   35.448170][  T243]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   35.448306][  T243]  vti_init_net (net/ipv4/ip_vti.c:517)
[   35.448440][  T243]  ops_init (net/core/net_namespace.c:137)
[   35.448540][  T243]  setup_net (net/core/net_namespace.c:446)
[   35.448639][  T243]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   35.448836][  T243]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   35.448968][  T243]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   35.449102][  T243]  copy_net_ns (net/core/net_namespace.c:579)
[   35.449235][  T243]  create_new_namespaces (kernel/nsproxy.c:132)
[   35.449369][  T243]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   35.449503][  T243]  ksys_unshare (kernel/fork.c:3243)
[   35.449634][  T243]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   35.449829][  T243]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   35.449959][  T243]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.450090][  T243]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   35.450224][  T243]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.450357][  T243]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   35.450487][  T243]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   35.450618][  T243]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   35.450806][  T243]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   35.450992][  T243]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   35.451124][  T243]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.451288][  T243] RIP: 0033:0x7fa0a8f22bcb
[   35.451425][  T243] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   35.451952][  T243] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   35.452148][  T243] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   35.452345][  T243] RDX: 00000000004065e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   35.452541][  T243] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   35.452801][  T243] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   35.452995][  T243] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   35.455221][   T12] ------------[ cut here ]------------
| [   35.455383][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   35.455671][   T12] Modules linked in:
| [   35.456145][   T12] Tainted: [W]=WARN
[   35.456280][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.456472][   T12] Workqueue: netns cleanup_net
[   35.456645][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.456869][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.457340][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   35.457534][   T12] RAX: 00000000ffffffa6 RBX: ff1100000e5d91c0 RCX: 1ff4000000018ed5
[   35.457778][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e5d927c
[   35.458000][   T12] RBP: ff1100000a83c000 R08: 1fe2200001cbb251 R09: ff11000001aed1d0
[   35.458222][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   35.458444][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.458677][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   35.458943][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.459136][   T12] CR2: 00000000004090e8 CR3: 0000000044d4d006 CR4: 0000000000771ef0
[   35.459358][   T12] PKRU: 55555554
[   35.459491][   T12] Call Trace:
[   35.459625][   T12]  <TASK>
[   35.459753][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.459951][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.460148][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   35.460316][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   35.460483][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   35.460658][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   35.460837][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   35.461007][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   35.461175][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   35.461339][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.461509][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   35.461681][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.461859][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.462026][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.462190][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.462358][   T12]  process_one_work (kernel/workqueue.c:3314)
[   35.462527][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.462698][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.462877][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.463047][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.463212][   T12]  kthread (kernel/kthread.c:436)
[   35.463348][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.463544][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.463718][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.463898][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.464093][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.464259][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.464425][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.473510][  T243] ------------[ cut here ]------------
| [   35.473659][  T243] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: scm_rights/243
| [   35.473924][  T243] Modules linked in:
| [   35.474320][  T243] Tainted: [W]=WARN
[   35.474418][  T243] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.474580][  T243] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.474761][  T243] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.475218][  T243] RSP: 0018:ffa0000000907a78 EFLAGS: 00010286
[   35.475381][  T243] RAX: 00000000ffffffa6 RBX: ff1100000c4be900 RCX: 1ff4000000120f15
[   35.475574][  T243] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c4be9bc
[   35.475775][  T243] RBP: ff11000008d29000 R08: 1fe2200001897d39 R09: ff11000009b5ae80
[   35.475968][  T243] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   35.476161][  T243] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008d29000
[   35.476355][  T243] FS:  00007fa0a8e27740(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   35.476580][  T243] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.476750][  T243] CR2: 00007fa0a8e9a0a0 CR3: 000000000abc5006 CR4: 0000000000771ef0
[   35.476949][  T243] PKRU: 55555554
[   35.477046][  T243] Call Trace:
[   35.477141][  T243]  <TASK>
[   35.477207][  T243]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.477337][  T243]  ? notifier_call_chain (kernel/notifier.c:85)
[   35.477467][  T243]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.477566][  T243]  register_netdevice (net/core/dev.c:11488)
[   35.477701][  T243]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   35.477865][  T243]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.477997][  T243]  register_netdev (net/core/dev.c:11552)
[   35.478125][  T243]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   35.478256][  T243]  ops_init (net/core/net_namespace.c:137)
[   35.478354][  T243]  setup_net (net/core/net_namespace.c:446)
[   35.478452][  T243]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   35.478581][  T243]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   35.478716][  T243]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   35.478852][  T243]  copy_net_ns (net/core/net_namespace.c:579)
[   35.478982][  T243]  create_new_namespaces (kernel/nsproxy.c:132)
[   35.479114][  T243]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   35.479244][  T243]  ksys_unshare (kernel/fork.c:3243)
[   35.479374][  T243]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   35.479505][  T243]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   35.479646][  T243]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.479787][  T243]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   35.479918][  T243]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.480047][  T243]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   35.480174][  T243]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   35.480304][  T243]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   35.480432][  T243]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   35.480559][  T243]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   35.480694][  T243]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.480859][  T243] RIP: 0033:0x7fa0a8f22bcb
[   35.480993][  T243] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   35.481451][  T243] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   35.481647][  T243] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   35.481850][  T243] RDX: 00000000004065e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   35.482042][  T243] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   35.482234][  T243] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   35.482428][  T243] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   35.493305][  T243] ------------[ cut here ]------------
| [   35.493442][  T243] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: scm_rights/243
| [   35.493700][  T243] Modules linked in:
| [   35.494598][  T243] Tainted: [W]=WARN
[   35.494700][  T243] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.494919][  T243] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.495090][  T243] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.495549][  T243] RSP: 0018:ffa0000000907a68 EFLAGS: 00010286
[   35.495719][  T243] RAX: 00000000ffffffa6 RBX: ff1100000e5d9a80 RCX: 1ff4000000120f13
[   35.495971][  T243] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e5d9b3c
[   35.496165][  T243] RBP: ff1100000f381000 R08: 1fe2200001cbb369 R09: ff11000009b5ae80
[   35.496358][  T243] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   35.496551][  T243] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f381000
[   35.496807][  T243] FS:  00007fa0a8e27740(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   35.497038][  T243] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.497202][  T243] CR2: 00007fa0a8e9a0a0 CR3: 000000000abc5006 CR4: 0000000000771ef0
[   35.497397][  T243] PKRU: 55555554
[   35.497495][  T243] Call Trace:
[   35.497592][  T243]  <TASK>
[   35.497662][  T243]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.497848][  T243]  ? notifier_call_chain (kernel/notifier.c:85)
[   35.497979][  T243]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.498076][  T243]  register_netdevice (net/core/dev.c:11488)
[   35.498207][  T243]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   35.498370][  T243]  register_netdev (net/core/dev.c:11552)
[   35.498498][  T243]  sit_init_net (net/ipv6/sit.c:1860)
[   35.498628][  T243]  ops_init (net/core/net_namespace.c:137)
[   35.498731][  T243]  setup_net (net/core/net_namespace.c:446)
[   35.498885][  T243]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   35.499013][  T243]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   35.499142][  T243]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   35.499274][  T243]  copy_net_ns (net/core/net_namespace.c:579)
[   35.499406][  T243]  create_new_namespaces (kernel/nsproxy.c:132)
[   35.499539][  T243]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   35.499673][  T243]  ksys_unshare (kernel/fork.c:3243)
[   35.499857][  T243]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   35.499985][  T243]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   35.500113][  T243]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.500243][  T243]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   35.500373][  T243]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.500502][  T243]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   35.500632][  T243]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   35.500822][  T243]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   35.500952][  T243]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   35.501079][  T243]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   35.501208][  T243]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.501369][  T243] RIP: 0033:0x7fa0a8f22bcb
[   35.501501][  T243] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   35.502022][  T243] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   35.502216][  T243] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   35.502407][  T243] RDX: 00000000004065e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   35.502599][  T243] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   35.502850][  T243] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   35.503042][  T243] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   35.507573][  T243] ------------[ cut here ]------------
| [   35.507723][  T243] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/243
| [   35.507988][  T243] Modules linked in:
| [   35.508383][  T243] Tainted: [W]=WARN
[   35.508481][  T243] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.508645][  T243] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.508827][  T243] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.509286][  T243] RSP: 0018:ffa0000000907a78 EFLAGS: 00010286
[   35.509450][  T243] RAX: 00000000ffffffa6 RBX: ff1100000285e200 RCX: 1ff4000000120f15
[   35.509646][  T243] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000285e2bc
[   35.509851][  T243] RBP: ff110000094f4000 R08: 1fe220000050bc59 R09: ff11000009b5ae80
[   35.510049][  T243] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   35.510243][  T243] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000094f4000
[   35.510439][  T243] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   35.510671][  T243] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.510842][  T243] CR2: 00007fa0a8f22bc0 CR3: 000000000abc5004 CR4: 0000000000771ef0
[   35.511037][  T243] PKRU: 55555554
[   35.511136][  T243] Call Trace:
[   35.511232][  T243]  <TASK>
[   35.511300][  T243]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.511430][  T243]  ? notifier_call_chain (kernel/notifier.c:85)
[   35.511561][  T243]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.511664][  T243]  register_netdevice (net/core/dev.c:11488)
[   35.511804][  T243]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   35.511964][  T243]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.512096][  T243]  register_netdev (net/core/dev.c:11552)
[   35.512227][  T243]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   35.512358][  T243]  ops_init (net/core/net_namespace.c:137)
[   35.512458][  T243]  setup_net (net/core/net_namespace.c:446)
[   35.512556][  T243]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   35.512691][  T243]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   35.512826][  T243]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   35.512957][  T243]  copy_net_ns (net/core/net_namespace.c:579)
[   35.513087][  T243]  create_new_namespaces (kernel/nsproxy.c:132)
[   35.513220][  T243]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   35.513350][  T243]  ksys_unshare (kernel/fork.c:3243)
[   35.513480][  T243]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   35.513610][  T243]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   35.513747][  T243]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.513877][  T243]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   35.514008][  T243]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.514138][  T243]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   35.514267][  T243]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   35.514398][  T243]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   35.514529][  T243]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   35.514662][  T243]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   35.514796][  T243]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.514957][  T243] RIP: 0033:0x7fa0a8f22bcb
[   35.515092][  T243] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   35.515554][  T243] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   35.515759][  T243] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   35.515952][  T243] RDX: 00000000004065e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   35.516144][  T243] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   35.516339][  T243] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   35.516532][  T243] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   35.545062][   T12] ------------[ cut here ]------------
| [   35.545193][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   35.545421][   T12] Modules linked in:
| [   35.546209][   T12] Tainted: [W]=WARN
[   35.546298][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.546443][   T12] Workqueue: netns cleanup_net
[   35.546564][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.546723][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.547142][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   35.547288][   T12] RAX: 00000000ffffffa6 RBX: ff1100000ab758c0 RCX: 1ff4000000018eed
[   35.547461][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ab7597c
[   35.547633][   T12] RBP: ff110000094f4000 R08: 1fe220000156eb31 R09: ff11000001aed1d0
[   35.547819][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   35.547992][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.548167][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   35.548371][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.548520][   T12] CR2: 00000000004090e8 CR3: 0000000044d4d002 CR4: 0000000000771ef0
[   35.548699][   T12] PKRU: 55555554
[   35.548790][   T12] Call Trace:
[   35.548878][   T12]  <TASK>
[   35.548943][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.549092][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.549236][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   35.549352][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   35.549471][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   35.549589][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   35.549710][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.549834][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   35.549952][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   35.550067][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.550187][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   35.550309][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.550424][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.550547][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.550667][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.550795][   T12]  process_one_work (kernel/workqueue.c:3314)
[   35.550916][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.551032][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.551153][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.551276][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.551398][   T12]  kthread (kernel/kthread.c:436)
[   35.551484][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.551627][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.551751][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.551868][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.552013][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.552128][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.552244][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.554387][   T12] ------------[ cut here ]------------
| [   35.554504][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   35.554755][   T12] Modules linked in:
| [   35.555109][   T12] Tainted: [W]=WARN
[   35.555199][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.555344][   T12] Workqueue: netns cleanup_net
[   35.555466][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.555617][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.556039][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   35.556184][   T12] RAX: 00000000ffffffa6 RBX: ff11000002834c80 RCX: 1ff4000000018eed
[   35.556357][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000002834d3c
[   35.556528][   T12] RBP: ff1100000f381000 R08: 1fe22000005069a9 R09: ff11000001aed1d0
[   35.556708][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   35.556885][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.557063][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   35.557263][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.557407][   T12] CR2: 00000000004090e8 CR3: 0000000044d4d002 CR4: 0000000000771ef0
[   35.557581][   T12] PKRU: 55555554
[   35.557671][   T12] Call Trace:
[   35.557761][   T12]  <TASK>
[   35.557821][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.557969][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.558111][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   35.558230][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   35.558353][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   35.558468][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   35.558585][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.558709][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   35.558832][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   35.558946][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.559064][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   35.559181][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.559296][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.559418][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.559534][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.559657][   T12]  process_one_work (kernel/workqueue.c:3314)
[   35.559780][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.559896][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.560021][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.560143][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.560258][   T12]  kthread (kernel/kthread.c:436)
[   35.560345][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.560493][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.560608][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.560739][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.560886][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.561003][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.561121][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.563255][   T12] ------------[ cut here ]------------
| [   35.563370][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   35.563594][   T12] Modules linked in:
| [   35.564424][   T12] Tainted: [W]=WARN
[   35.564512][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.564659][   T12] Workqueue: netns cleanup_net
[   35.564829][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.564988][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.565411][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   35.565558][   T12] RAX: 00000000ffffffa6 RBX: ff11000002835380 RCX: 1ff4000000018eed
[   35.565781][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000283543c
[   35.565954][   T12] RBP: ff11000008d29000 R08: 1fe2200000506a89 R09: ff11000001aed1d0
[   35.566129][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   35.566302][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.566475][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   35.566728][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.566920][   T12] CR2: 00000000004090e8 CR3: 0000000044d4d002 CR4: 0000000000771ef0
[   35.567095][   T12] PKRU: 55555554
[   35.567181][   T12] Call Trace:
[   35.567268][   T12]  <TASK>
[   35.567327][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.567475][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.567623][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   35.567787][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   35.567905][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   35.568020][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   35.568138][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.568255][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   35.568373][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   35.568493][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.568610][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   35.568731][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.568890][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.569008][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.569123][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.569240][   T12]  process_one_work (kernel/workqueue.c:3314)
[   35.569359][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.569479][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.569598][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.569722][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.569884][   T12]  kthread (kernel/kthread.c:436)
[   35.569972][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.570115][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.570232][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.570348][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.570492][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.570607][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.570726][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.573133][   T12] ------------[ cut here ]------------
| [   35.573244][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   35.573469][   T12] Modules linked in:
| [   35.574179][   T12] Tainted: [W]=WARN
[   35.574267][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.574413][   T12] Workqueue: netns cleanup_net
[   35.574532][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.574685][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.575203][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   35.575349][   T12] RAX: 00000000ffffffa6 RBX: ff110000028358c0 RCX: 1ff4000000018eed
[   35.575527][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000283597c
[   35.575701][   T12] RBP: ff1100001004c000 R08: 1fe2200000506b31 R09: ff11000001aed1d0
[   35.575932][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   35.576104][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.576278][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   35.576481][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.576626][   T12] CR2: 00000000004090e8 CR3: 0000000044d4d002 CR4: 0000000000771ef0
[   35.576883][   T12] PKRU: 55555554
[   35.576969][   T12] Call Trace:
[   35.577056][   T12]  <TASK>
[   35.577116][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.577265][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.577411][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   35.577528][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   35.577653][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   35.577820][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   35.577938][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.578055][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   35.578173][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   35.578288][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.578406][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   35.578524][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.578641][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.578807][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.578923][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.579041][   T12]  process_one_work (kernel/workqueue.c:3314)
[   35.579160][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.579276][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.579399][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.579524][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.579638][   T12]  kthread (kernel/kthread.c:436)
[   35.579729][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.579918][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.580035][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.580150][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.580293][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.580409][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.580528][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.582670][   T12] ------------[ cut here ]------------
| [   35.582805][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   35.583032][   T12] Modules linked in:
| [   35.583385][   T12] Tainted: [W]=WARN
[   35.583471][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.583615][   T12] Workqueue: netns cleanup_net
[   35.583746][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.583898][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.584308][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   35.584452][   T12] RAX: 00000000ffffffa6 RBX: ff11000002835a80 RCX: 1ff4000000018eed
[   35.584624][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000002835b3c
[   35.584803][   T12] RBP: ff11000002414000 R08: 1fe2200000506b69 R09: ff11000001aed1d0
[   35.584982][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   35.585153][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.585327][   T12] FS:  0000000000000000(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   35.585528][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.585685][   T12] CR2: 00007fa0a8f22bc0 CR3: 0000000008f11005 CR4: 0000000000771ef0
[   35.585862][   T12] PKRU: 55555554
[   35.585948][   T12] Call Trace:
[   35.586033][   T12]  <TASK>
[   35.586094][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.586243][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.586392][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   35.586511][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   35.586628][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   35.586753][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   35.586869][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.586990][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   35.587108][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   35.587225][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.587343][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   35.587465][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.587582][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.587701][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.587822][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.587940][   T12]  process_one_work (kernel/workqueue.c:3314)
[   35.588060][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.588176][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.588302][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.588423][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.588539][   T12]  kthread (kernel/kthread.c:436)
[   35.588626][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.588780][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.588897][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.589012][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.589158][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.589273][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.589389][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.599782][   T12] ------------[ cut here ]------------
| [   35.599911][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   35.600142][   T12] Modules linked in:
| [   35.600499][   T12] Tainted: [W]=WARN
[   35.600587][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.601094][   T12] Workqueue: netns cleanup_net
[   35.601217][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.601369][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.601800][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   35.601949][   T12] RAX: 00000000ffffffa6 RBX: ff1100000e4f8200 RCX: 1ff4000000018ed5
[   35.602123][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e4f82bc
[   35.602296][   T12] RBP: ff1100000a3a4000 R08: 1fe2200001c9f059 R09: ff11000001aed1d0
[   35.602469][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   35.602656][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.602837][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   35.603042][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.603191][   T12] CR2: 00000000004090e8 CR3: 0000000044d4d002 CR4: 0000000000771ef0
[   35.603368][   T12] PKRU: 55555554
[   35.603455][   T12] Call Trace:
[   35.603543][   T12]  <TASK>
[   35.603605][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.603772][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.603925][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   35.604051][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   35.604172][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   35.604293][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   35.604410][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   35.604530][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   35.604650][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   35.604775][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.604897][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   35.605015][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.605132][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.605257][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.605376][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.605495][   T12]  process_one_work (kernel/workqueue.c:3314)
[   35.605617][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.605747][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.605870][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.605993][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.606112][   T12]  kthread (kernel/kthread.c:436)
[   35.606202][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.606349][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.606468][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.606588][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.606747][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.606866][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.606985][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.612175][  T245] ------------[ cut here ]------------
| [   35.612316][  T245] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/245
| [   35.612575][  T245] Modules linked in:
| [   35.612979][  T245] Tainted: [W]=WARN
[   35.613075][  T245] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.613236][  T245] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.613405][  T245] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.613876][  T245] RSP: 0018:ffa0000000967a80 EFLAGS: 00010286
[   35.614038][  T245] RAX: 00000000ffffffa6 RBX: ff1100000d088040 RCX: 1ff400000012cf16
[   35.614232][  T245] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d0880fc
[   35.614426][  T245] RBP: ff1100000e9bc000 R08: 1fe2200001a11021 R09: ff110000100a0b80
[   35.614620][  T245] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   35.614825][  T245] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e9bc000
[   35.615022][  T245] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   35.615254][  T245] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.615416][  T245] CR2: 00007fa0a8f22bc0 CR3: 0000000008f11005 CR4: 0000000000771ef0
[   35.615611][  T245] PKRU: 55555554
[   35.615712][  T245] Call Trace:
[   35.615812][  T245]  <TASK>
[   35.615880][  T245]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.616013][  T245]  ? notifier_call_chain (kernel/notifier.c:85)
[   35.616144][  T245]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.616244][  T245]  register_netdevice (net/core/dev.c:11488)
[   35.616375][  T245]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   35.616537][  T245]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   35.616670][  T245]  register_netdev (net/core/dev.c:11552)
[   35.616807][  T245]  loopback_net_init (drivers/net/loopback.c:218)
[   35.616941][  T245]  ops_init (net/core/net_namespace.c:137)
[   35.617039][  T245]  setup_net (net/core/net_namespace.c:446)
[   35.617136][  T245]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   35.617263][  T245]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   35.617393][  T245]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   35.617529][  T245]  copy_net_ns (net/core/net_namespace.c:579)
[   35.617664][  T245]  create_new_namespaces (kernel/nsproxy.c:132)
[   35.617803][  T245]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   35.617933][  T245]  ksys_unshare (kernel/fork.c:3243)
[   35.618063][  T245]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   35.618192][  T245]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   35.618319][  T245]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.618449][  T245]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   35.618582][  T245]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.618715][  T245]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   35.618852][  T245]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   35.618981][  T245]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   35.619110][  T245]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   35.619239][  T245]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   35.619369][  T245]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.619529][  T245] RIP: 0033:0x7fa0a8f22bcb
[   35.619667][  T245] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   35.620136][  T245] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   35.620331][  T245] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   35.620524][  T245] RDX: 00000000004065e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   35.620723][  T245] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   35.620921][  T245] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   35.621114][  T245] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   35.625362][  T245] ------------[ cut here ]------------
| [   35.625494][  T245] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/245
| [   35.625756][  T245] Modules linked in:
| [   35.626151][  T245] Tainted: [W]=WARN
[   35.626248][  T245] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.626411][  T245] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.626579][  T245] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.627048][  T245] RSP: 0018:ffa0000000967918 EFLAGS: 00010286
[   35.627212][  T245] RAX: 00000000ffffffa6 RBX: ff110000029c9380 RCX: 1ff400000012cee9
[   35.627404][  T245] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000029c943c
[   35.627596][  T245] RBP: ff11000008b9c000 R08: 1fe2200000539289 R09: ff110000100a0b80
[   35.627797][  T245] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   35.627989][  T245] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008b9c000
[   35.628184][  T245] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   35.628410][  T245] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.628571][  T245] CR2: 00007fa0a8f22bc0 CR3: 0000000008f11005 CR4: 0000000000771ef0
[   35.628775][  T245] PKRU: 55555554
[   35.628871][  T245] Call Trace:
[   35.628967][  T245]  <TASK>
[   35.629033][  T245]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.629163][  T245]  ? notifier_call_chain (kernel/notifier.c:85)
[   35.629291][  T245]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.629390][  T245]  register_netdevice (net/core/dev.c:11488)
[   35.629524][  T245]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   35.629688][  T245]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   35.629825][  T245]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   35.629955][  T245]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   35.630085][  T245]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   35.630217][  T245]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   35.630349][  T245]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   35.630483][  T245]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   35.630615][  T245]  ops_init (net/core/net_namespace.c:137)
[   35.630719][  T245]  setup_net (net/core/net_namespace.c:446)
[   35.630822][  T245]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   35.630952][  T245]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   35.631082][  T245]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   35.631214][  T245]  copy_net_ns (net/core/net_namespace.c:579)
[   35.631346][  T245]  create_new_namespaces (kernel/nsproxy.c:132)
[   35.631479][  T245]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   35.631610][  T245]  ksys_unshare (kernel/fork.c:3243)
[   35.631746][  T245]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   35.631877][  T245]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   35.632006][  T245]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.632136][  T245]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   35.632268][  T245]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.632398][  T245]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   35.632528][  T245]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   35.632660][  T245]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   35.632793][  T245]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   35.632923][  T245]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   35.633052][  T245]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.633212][  T245] RIP: 0033:0x7fa0a8f22bcb
[   35.633347][  T245] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   35.633816][  T245] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   35.634013][  T245] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   35.634206][  T245] RDX: 00000000004065e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   35.634398][  T245] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   35.634591][  T245] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   35.634793][  T245] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   35.638596][  T245] ------------[ cut here ]------------
| [   35.639275][  T245] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/245
| [   35.639539][  T245] Modules linked in:
| [   35.640001][  T245] Tainted: [W]=WARN
[   35.640100][  T245] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.640265][  T245] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.640433][  T245] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.640958][  T245] RSP: 0018:ffa00000009678f8 EFLAGS: 00010286
[   35.641123][  T245] RAX: 00000000ffffffa6 RBX: ff1100000be5c900 RCX: 1ff400000012cee5
[   35.641315][  T245] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000be5c9bc
[   35.641510][  T245] RBP: ff1100000fa14000 R08: 1fe22000017cb939 R09: ff110000100a0b80
[   35.641707][  T245] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   35.641957][  T245] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fa14000
[   35.642152][  T245] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   35.642379][  T245] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.642543][  T245] CR2: 00007fa0a8f22bc0 CR3: 0000000008f11005 CR4: 0000000000771ef0
[   35.642800][  T245] PKRU: 55555554
[   35.642897][  T245] Call Trace:
[   35.642994][  T245]  <TASK>
[   35.643061][  T245]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.643189][  T245]  ? notifier_call_chain (kernel/notifier.c:85)
[   35.643319][  T245]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.643420][  T245]  register_netdevice (net/core/dev.c:11488)
[   35.643550][  T245]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   35.643717][  T245]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   35.643904][  T245]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   35.644036][  T245]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   35.644166][  T245]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   35.644297][  T245]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   35.644430][  T245]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   35.644563][  T245]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   35.644696][  T245]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   35.644885][  T245]  vti_init_net (net/ipv4/ip_vti.c:517)
[   35.645016][  T245]  ops_init (net/core/net_namespace.c:137)
[   35.645115][  T245]  setup_net (net/core/net_namespace.c:446)
[   35.645214][  T245]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   35.645345][  T245]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   35.645478][  T245]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   35.645612][  T245]  copy_net_ns (net/core/net_namespace.c:579)
[   35.645804][  T245]  create_new_namespaces (kernel/nsproxy.c:132)
[   35.645939][  T245]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   35.646071][  T245]  ksys_unshare (kernel/fork.c:3243)
[   35.646202][  T245]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   35.646334][  T245]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   35.646466][  T245]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.646597][  T245]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   35.646731][  T245]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.646918][  T245]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   35.647048][  T245]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   35.647178][  T245]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   35.647308][  T245]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   35.647442][  T245]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   35.647574][  T245]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.647796][  T245] RIP: 0033:0x7fa0a8f22bcb
[   35.647933][  T245] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   35.648393][  T245] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   35.648590][  T245] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   35.648844][  T245] RDX: 00000000004065e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   35.649040][  T245] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   35.649234][  T245] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   35.649431][  T245] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   35.653937][  T245] ------------[ cut here ]------------
| [   35.654079][  T245] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: scm_rights/245
| [   35.654340][  T245] Modules linked in:
| [   35.654747][  T245] Tainted: [W]=WARN
[   35.654850][  T245] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.655014][  T245] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.655182][  T245] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.655639][  T245] RSP: 0018:ffa0000000967a78 EFLAGS: 00010286
[   35.655811][  T245] RAX: 00000000ffffffa6 RBX: ff11000009697700 RCX: 1ff400000012cf15
[   35.656003][  T245] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000096977bc
[   35.656195][  T245] RBP: ff1100000f969000 R08: 1fe22000012d2ef9 R09: ff110000100a0b80
[   35.656388][  T245] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   35.656582][  T245] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f969000
[   35.656828][  T245] FS:  00007fa0a8e27740(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   35.657054][  T245] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.657215][  T245] CR2: 00000000004090e8 CR3: 0000000008f11001 CR4: 0000000000771ef0
[   35.657409][  T245] PKRU: 55555554
[   35.657509][  T245] Call Trace:
[   35.657604][  T245]  <TASK>
[   35.657677][  T245]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.657811][  T245]  ? notifier_call_chain (kernel/notifier.c:85)
[   35.657940][  T245]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.658041][  T245]  register_netdevice (net/core/dev.c:11488)
[   35.658172][  T245]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   35.658333][  T245]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.658467][  T245]  register_netdev (net/core/dev.c:11552)
[   35.658596][  T245]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   35.658731][  T245]  ops_init (net/core/net_namespace.c:137)
[   35.658837][  T245]  setup_net (net/core/net_namespace.c:446)
[   35.658935][  T245]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   35.659063][  T245]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   35.659190][  T245]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   35.659322][  T245]  copy_net_ns (net/core/net_namespace.c:579)
[   35.659451][  T245]  create_new_namespaces (kernel/nsproxy.c:132)
[   35.659583][  T245]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   35.659716][  T245]  ksys_unshare (kernel/fork.c:3243)
[   35.659852][  T245]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   35.659984][  T245]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   35.660112][  T245]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.660242][  T245]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   35.660373][  T245]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.660504][  T245]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   35.660633][  T245]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   35.660772][  T245]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   35.660900][  T245]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   35.661030][  T245]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   35.661158][  T245]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.661318][  T245] RIP: 0033:0x7fa0a8f22bcb
[   35.661452][  T245] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   35.661922][  T245] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   35.662118][  T245] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   35.662309][  T245] RDX: 00000000004065e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   35.662501][  T245] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   35.662695][  T245] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   35.662891][  T245] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   35.675182][  T245] ------------[ cut here ]------------
| [   35.675319][  T245] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: scm_rights/245
| [   35.675573][  T245] Modules linked in:
| [   35.675971][  T245] Tainted: [W]=WARN
[   35.676068][  T245] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.676230][  T245] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.676397][  T245] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.676891][  T245] RSP: 0018:ffa0000000967a68 EFLAGS: 00010286
[   35.677053][  T245] RAX: 00000000ffffffa6 RBX: ff11000010846e40 RCX: 1ff400000012cf13
[   35.677245][  T245] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000010846efc
[   35.677436][  T245] RBP: ff1100000979c000 R08: 1fe2200002108de1 R09: ff110000100a0b80
[   35.677628][  T245] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   35.677830][  T245] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000979c000
[   35.678023][  T245] FS:  00007fa0a8e27740(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   35.678249][  T245] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.678410][  T245] CR2: 00000000004090e8 CR3: 0000000008f11001 CR4: 0000000000771ef0
[   35.678603][  T245] PKRU: 55555554
[   35.678703][  T245] Call Trace:
[   35.678803][  T245]  <TASK>
[   35.678868][  T245]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.678995][  T245]  ? notifier_call_chain (kernel/notifier.c:85)
[   35.679124][  T245]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.679221][  T245]  register_netdevice (net/core/dev.c:11488)
[   35.679351][  T245]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   35.679514][  T245]  register_netdev (net/core/dev.c:11552)
[   35.679642][  T245]  sit_init_net (net/ipv6/sit.c:1860)
[   35.679782][  T245]  ops_init (net/core/net_namespace.c:137)
[   35.679880][  T245]  setup_net (net/core/net_namespace.c:446)
[   35.679976][  T245]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   35.680104][  T245]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   35.680231][  T245]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   35.680363][  T245]  copy_net_ns (net/core/net_namespace.c:579)
[   35.680492][  T245]  create_new_namespaces (kernel/nsproxy.c:132)
[   35.680623][  T245]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   35.680761][  T245]  ksys_unshare (kernel/fork.c:3243)
[   35.680889][  T245]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   35.681017][  T245]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   35.681143][  T245]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.681270][  T245]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   35.681402][  T245]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.681532][  T245]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   35.681661][  T245]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   35.681795][  T245]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   35.681922][  T245]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   35.682048][  T245]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   35.682176][  T245]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.682334][  T245] RIP: 0033:0x7fa0a8f22bcb
[   35.682468][  T245] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   35.682932][  T245] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   35.683125][  T245] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   35.683316][  T245] RDX: 00000000004065e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   35.683508][  T245] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   35.683704][  T245] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   35.683898][  T245] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   35.688446][  T245] ------------[ cut here ]------------
| [   35.688577][  T245] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: scm_rights/245
| [   35.688840][  T245] Modules linked in:
| [   35.689240][  T245] Tainted: [W]=WARN
[   35.689336][  T245] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.689496][  T245] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.689664][  T245] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.690122][  T245] RSP: 0018:ffa0000000967a78 EFLAGS: 00010286
[   35.690282][  T245] RAX: 00000000ffffffa6 RBX: ff1100000c7fac80 RCX: 1ff400000012cf15
[   35.690472][  T245] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c7fad3c
[   35.690665][  T245] RBP: ff11000008d4c000 R08: 1fe22000018ff5a9 R09: ff110000100a0b80
[   35.690861][  T245] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   35.691052][  T245] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008d4c000
[   35.691246][  T245] FS:  00007fa0a8e27740(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   35.691473][  T245] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.691635][  T245] CR2: 00000000004090e8 CR3: 0000000008f11001 CR4: 0000000000771ef0
[   35.691835][  T245] PKRU: 55555554
[   35.691931][  T245] Call Trace:
[   35.692026][  T245]  <TASK>
[   35.692091][  T245]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.692218][  T245]  ? notifier_call_chain (kernel/notifier.c:85)
[   35.692346][  T245]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.692444][  T245]  register_netdevice (net/core/dev.c:11488)
[   35.692573][  T245]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   35.692741][  T245]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.692872][  T245]  register_netdev (net/core/dev.c:11552)
[   35.693000][  T245]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   35.693129][  T245]  ops_init (net/core/net_namespace.c:137)
[   35.693227][  T245]  setup_net (net/core/net_namespace.c:446)
[   35.693323][  T245]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   35.693450][  T245]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   35.693577][  T245]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   35.693709][  T245]  copy_net_ns (net/core/net_namespace.c:579)
[   35.693841][  T245]  create_new_namespaces (kernel/nsproxy.c:132)
[   35.693974][  T245]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   35.694103][  T245]  ksys_unshare (kernel/fork.c:3243)
[   35.694232][  T245]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   35.694360][  T245]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   35.694488][  T245]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.694616][  T245]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   35.694751][  T245]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.694881][  T245]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   35.695008][  T245]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   35.695135][  T245]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   35.695265][  T245]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   35.695393][  T245]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   35.695520][  T245]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.695683][  T245] RIP: 0033:0x7fa0a8f22bcb
[   35.695821][  T245] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   35.696278][  T245] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   35.696472][  T245] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   35.696666][  T245] RDX: 00000000004065e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   35.696861][  T245] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   35.697053][  T245] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   35.697243][  T245] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   35.719401][   T12] ------------[ cut here ]------------
| [   35.719568][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   35.720631][   T12] Modules linked in:
| [   35.721275][   T12] Tainted: [W]=WARN
[   35.721490][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.721729][   T12] Workqueue: netns cleanup_net
[   35.721937][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.722135][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.722594][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   35.722808][   T12] RAX: 00000000ffffffa6 RBX: ff1100000cfc5a80 RCX: 1ff4000000018eed
[   35.723027][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cfc5b3c
[   35.723244][   T12] RBP: ff11000008d4c000 R08: 1fe22000019f8b69 R09: ff11000001aed1d0
[   35.723464][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   35.723689][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.723924][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   35.724170][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.724362][   T12] CR2: 00000000004090e8 CR3: 0000000044d4d006 CR4: 0000000000771ef0
[   35.724586][   T12] PKRU: 55555554
[   35.724726][   T12] Call Trace:
[   35.724876][   T12]  <TASK>
[   35.724982][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.725177][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.725367][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   35.725531][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   35.725698][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   35.725873][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   35.726038][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.726203][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   35.726367][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   35.726529][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.726701][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   35.726875][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.727040][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.727206][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.727369][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.727535][   T12]  process_one_work (kernel/workqueue.c:3314)
[   35.727710][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.727889][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.728059][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.728227][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.728395][   T12]  kthread (kernel/kthread.c:436)
[   35.728530][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.728725][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.728901][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.729065][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.729254][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.729418][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.729583][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.732173][   T12] ------------[ cut here ]------------
| [   35.732329][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   35.732604][   T12] Modules linked in:
| [   35.733153][   T12] Tainted: [W]=WARN
[   35.733286][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.733486][   T12] Workqueue: netns cleanup_net
[   35.733661][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.733871][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.734327][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   35.734518][   T12] RAX: 00000000ffffffa6 RBX: ff1100000cfc5700 RCX: 1ff4000000018eed
[   35.734757][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cfc57bc
[   35.734974][   T12] RBP: ff1100000979c000 R08: 1fe22000019f8af9 R09: ff11000001aed1d0
[   35.735190][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   35.735408][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.735630][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   35.735897][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.736090][   T12] CR2: 00000000004090e8 CR3: 0000000044d4d006 CR4: 0000000000771ef0
[   35.736310][   T12] PKRU: 55555554
[   35.736442][   T12] Call Trace:
[   35.736577][   T12]  <TASK>
[   35.736692][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.736902][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.737090][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   35.737254][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   35.737417][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   35.737579][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   35.737761][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.737930][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   35.738096][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   35.738258][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.738425][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   35.738590][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.738774][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.738942][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.739105][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.739273][   T12]  process_one_work (kernel/workqueue.c:3314)
[   35.739441][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.739604][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.739788][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.739958][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.740122][   T12]  kthread (kernel/kthread.c:436)
[   35.740256][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.740450][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.740613][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.740798][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.740990][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.741154][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.741319][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.743909][   T12] ------------[ cut here ]------------
| [   35.744069][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   35.744344][   T12] Modules linked in:
| [   35.745318][   T12] Tainted: [W]=WARN
[   35.745498][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.745754][   T12] Workqueue: netns cleanup_net
[   35.745969][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.746215][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.746722][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   35.746974][   T12] RAX: 00000000ffffffa6 RBX: ff1100000d9b4900 RCX: 1ff4000000018eed
[   35.747236][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d9b49bc
[   35.747502][   T12] RBP: ff1100000f969000 R08: 1fe2200001b36939 R09: ff11000001aed1d0
[   35.747783][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   35.748045][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.748309][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   35.748605][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.748859][   T12] CR2: 00000000004090e8 CR3: 0000000044d4d006 CR4: 0000000000771ef0
[   35.749126][   T12] PKRU: 55555554
[   35.749301][   T12] Call Trace:
[   35.749478][   T12]  <TASK>
[   35.749629][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.749890][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.750128][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   35.750335][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   35.750543][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   35.750775][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   35.750988][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.751198][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   35.751435][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   35.751694][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.751975][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   35.752229][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.752478][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.752753][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.753010][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.753189][   T12]  process_one_work (kernel/workqueue.c:3314)
[   35.753355][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.753522][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.753698][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.753877][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.754040][   T12]  kthread (kernel/kthread.c:436)
[   35.754177][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.754370][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.754534][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.754713][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.754921][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.755086][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.755250][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.757634][   T12] ------------[ cut here ]------------
| [   35.757818][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   35.758088][   T12] Modules linked in:
| [   35.758536][   T12] Tainted: [W]=WARN
[   35.758674][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.759064][   T12] Workqueue: netns cleanup_net
[   35.759318][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.759562][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.760093][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   35.760331][   T12] RAX: 00000000ffffffa6 RBX: ff1100000d9b5540 RCX: 1ff4000000018eed
[   35.760593][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d9b55fc
[   35.760879][   T12] RBP: ff1100000fa14000 R08: 1fe2200001b36ac1 R09: ff11000001aed1d0
[   35.761147][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   35.761409][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.761681][   T12] FS:  0000000000000000(0000) GS:ff110000cbfc7000(0000) knlGS:0000000000000000
[   35.761987][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.762222][   T12] CR2: 00000000004090e8 CR3: 0000000044d4d006 CR4: 0000000000771ef0
[   35.762490][   T12] PKRU: 55555554
[   35.762673][   T12] Call Trace:
[   35.762862][   T12]  <TASK>
[   35.763013][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.763253][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.763489][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   35.763705][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   35.763930][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   35.764139][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   35.764347][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.764557][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   35.764788][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   35.764996][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.765208][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   35.765415][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.765625][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.765856][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.766071][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.766331][   T12]  process_one_work (kernel/workqueue.c:3314)
[   35.766598][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.766875][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.767133][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.767395][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.767646][   T12]  kthread (kernel/kthread.c:436)
[   35.767890][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.768166][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.768359][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.768521][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.768720][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.768898][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.769061][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.771451][   T12] ------------[ cut here ]------------
| [   35.771581][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   35.771831][   T12] Modules linked in:
| [   35.772188][   T12] Tainted: [W]=WARN
[   35.772276][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.772425][   T12] Workqueue: netns cleanup_net
[   35.772547][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.772713][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.773137][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   35.773289][   T12] RAX: 00000000ffffffa6 RBX: ff1100000e50fc40 RCX: 1ff4000000018eed
[   35.773462][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e50fcfc
[   35.773636][   T12] RBP: ff11000008b9c000 R08: 1fe2200001ca1fa1 R09: ff11000001aed1d0
[   35.773823][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   35.773998][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.774179][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   35.774386][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.774533][   T12] CR2: 00007fa0a901cb20 CR3: 00000000108eb003 CR4: 0000000000771ef0
[   35.774726][   T12] PKRU: 55555554
[   35.774820][   T12] Call Trace:
[   35.774909][   T12]  <TASK>
[   35.774971][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.775122][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.775268][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   35.775387][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   35.775505][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   35.775622][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   35.775748][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.775870][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   35.775989][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   35.776106][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.776225][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   35.776346][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.776464][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.776586][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.776709][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.776833][   T12]  process_one_work (kernel/workqueue.c:3314)
[   35.776952][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.777068][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.777191][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.777312][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.777430][   T12]  kthread (kernel/kthread.c:436)
[   35.777518][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.777670][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.777794][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.777910][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.778057][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.778249][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.778366][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.790051][  T247] ------------[ cut here ]------------
| [   35.790200][  T247] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/247
| [   35.790460][  T247] Modules linked in:
| [   35.790875][  T247] Tainted: [W]=WARN
[   35.790975][  T247] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.791139][  T247] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.791308][  T247] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.791783][  T247] RSP: 0018:ffa00000008f7a80 EFLAGS: 00010286
[   35.791951][  T247] RAX: 00000000ffffffa6 RBX: ff1100000d089e00 RCX: 1ff400000011ef16
[   35.792146][  T247] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d089ebc
[   35.792342][  T247] RBP: ff1100000f369000 R08: 1fe2200001a113d9 R09: ff11000010025180
[   35.792539][  T247] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   35.792745][  T247] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f369000
[   35.792942][  T247] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   35.793174][  T247] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.793340][  T247] CR2: 00007fa0a8f22bc0 CR3: 0000000008f11001 CR4: 0000000000771ef0
[   35.793540][  T247] PKRU: 55555554
[   35.793637][  T247] Call Trace:
[   35.793745][  T247]  <TASK>
[   35.793814][  T247]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.793947][  T247]  ? notifier_call_chain (kernel/notifier.c:85)
[   35.794078][  T247]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.794181][  T247]  register_netdevice (net/core/dev.c:11488)
[   35.794314][  T247]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   35.794478][  T247]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   35.794611][  T247]  register_netdev (net/core/dev.c:11552)
[   35.794748][  T247]  loopback_net_init (drivers/net/loopback.c:218)
[   35.794882][  T247]  ops_init (net/core/net_namespace.c:137)
[   35.794981][  T247]  setup_net (net/core/net_namespace.c:446)
[   35.795083][  T247]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   35.795213][  T247]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   35.795344][  T247]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   35.795477][  T247]  copy_net_ns (net/core/net_namespace.c:579)
[   35.795609][  T247]  create_new_namespaces (kernel/nsproxy.c:132)
[   35.795750][  T247]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   35.795883][  T247]  ksys_unshare (kernel/fork.c:3243)
[   35.796016][  T247]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   35.796148][  T247]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   35.796279][  T247]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.796410][  T247]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   35.796542][  T247]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.796677][  T247]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   35.796816][  T247]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   35.796950][  T247]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   35.797084][  T247]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   35.797215][  T247]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   35.797347][  T247]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.797510][  T247] RIP: 0033:0x7fa0a8f22bcb
[   35.797647][  T247] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   35.798123][  T247] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   35.798321][  T247] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   35.798520][  T247] RDX: 00000000004065e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   35.798719][  T247] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   35.798923][  T247] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   35.799118][  T247] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   35.803342][  T247] ------------[ cut here ]------------
| [   35.803479][  T247] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/247
| [   35.803744][  T247] Modules linked in:
| [   35.804138][  T247] Tainted: [W]=WARN
[   35.804238][  T247] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.804401][  T247] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.804569][  T247] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.805038][  T247] RSP: 0018:ffa00000008f7918 EFLAGS: 00010286
[   35.805201][  T247] RAX: 00000000ffffffa6 RBX: ff1100000e441c40 RCX: 1ff400000011eee9
[   35.805395][  T247] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e441cfc
[   35.805588][  T247] RBP: ff11000010bb1000 R08: 1fe2200001c883a1 R09: ff11000010025180
[   35.805789][  T247] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   35.805982][  T247] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000010bb1000
[   35.806176][  T247] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   35.806404][  T247] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.806565][  T247] CR2: 00007fa0a8f22bc0 CR3: 0000000008f11001 CR4: 0000000000771ef0
[   35.806768][  T247] PKRU: 55555554
[   35.806875][  T247] Call Trace:
[   35.806971][  T247]  <TASK>
[   35.807038][  T247]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.807167][  T247]  ? notifier_call_chain (kernel/notifier.c:85)
[   35.807297][  T247]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.807395][  T247]  register_netdevice (net/core/dev.c:11488)
[   35.807527][  T247]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   35.807692][  T247]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   35.807830][  T247]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   35.807959][  T247]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   35.808087][  T247]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   35.808217][  T247]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   35.808348][  T247]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   35.808479][  T247]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   35.808611][  T247]  ops_init (net/core/net_namespace.c:137)
[   35.808716][  T247]  setup_net (net/core/net_namespace.c:446)
[   35.808820][  T247]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   35.808948][  T247]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   35.809077][  T247]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   35.809207][  T247]  copy_net_ns (net/core/net_namespace.c:579)
[   35.809337][  T247]  create_new_namespaces (kernel/nsproxy.c:132)
[   35.809469][  T247]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   35.809602][  T247]  ksys_unshare (kernel/fork.c:3243)
[   35.809740][  T247]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   35.809869][  T247]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   35.809996][  T247]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.810125][  T247]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   35.810256][  T247]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.810387][  T247]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   35.810516][  T247]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   35.810648][  T247]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   35.810788][  T247]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   35.810917][  T247]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   35.811046][  T247]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.811206][  T247] RIP: 0033:0x7fa0a8f22bcb
[   35.811340][  T247] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   35.811809][  T247] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   35.812002][  T247] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   35.812193][  T247] RDX: 00000000004065e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   35.812386][  T247] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   35.812576][  T247] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   35.812776][  T247] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   35.814585][   T12] ------------[ cut here ]------------
| [   35.814712][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   35.814959][   T12] Modules linked in:
| [   35.815320][   T12] Tainted: [W]=WARN
[   35.815410][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.815557][   T12] Workqueue: netns cleanup_net
[   35.815684][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.815842][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.816267][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   35.816415][   T12] RAX: 00000000ffffffa6 RBX: ff1100000e50f540 RCX: 1ff4000000018ed5
[   35.816592][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e50f5fc
[   35.816779][   T12] RBP: ff1100000e9bc000 R08: 1fe2200001ca1ec1 R09: ff11000001aed1d0
[   35.816957][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   35.817136][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.817313][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   35.817519][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.817675][   T12] CR2: 00007fa0a901cb20 CR3: 00000000108eb003 CR4: 0000000000771ef0
[   35.817860][   T12] PKRU: 55555554
[   35.817947][   T12] Call Trace:
[   35.818035][   T12]  <TASK>
[   35.818097][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.818248][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.818399][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   35.818522][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   35.818643][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   35.818773][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   35.818892][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   35.819014][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   35.819133][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   35.819253][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.819375][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   35.819495][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.819621][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.819750][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.819868][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.819988][   T12]  process_one_work (kernel/workqueue.c:3314)
[   35.820111][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.820228][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.820356][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.820478][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.820597][   T12]  kthread (kernel/kthread.c:436)
[   35.820697][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.820851][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.820969][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.821087][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.821237][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.821357][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.821477][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.826846][  T247] ------------[ cut here ]------------
| [   35.826984][  T247] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/247
| [   35.827240][  T247] Modules linked in:
| [   35.827631][  T247] Tainted: [W]=WARN
[   35.827739][  T247] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.827901][  T247] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.828069][  T247] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.828535][  T247] RSP: 0018:ffa00000008f78f8 EFLAGS: 00010286
[   35.828700][  T247] RAX: 00000000ffffffa6 RBX: ff1100000c745380 RCX: 1ff400000011eee5
[   35.828899][  T247] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c74543c
[   35.829091][  T247] RBP: ff1100000fe39000 R08: 1fe22000018e8a89 R09: ff11000010025180
[   35.829282][  T247] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   35.829475][  T247] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fe39000
[   35.829675][  T247] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   35.829908][  T247] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.830070][  T247] CR2: 00007fa0a8f22bc0 CR3: 0000000008f11001 CR4: 0000000000771ef0
[   35.830265][  T247] PKRU: 55555554
[   35.830361][  T247] Call Trace:
[   35.830460][  T247]  <TASK>
[   35.830528][  T247]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.830661][  T247]  ? notifier_call_chain (kernel/notifier.c:85)
[   35.830797][  T247]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.830896][  T247]  register_netdevice (net/core/dev.c:11488)
[   35.831027][  T247]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   35.831187][  T247]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   35.831321][  T247]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   35.831452][  T247]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   35.831584][  T247]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   35.831718][  T247]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   35.831853][  T247]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   35.831984][  T247]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   35.832114][  T247]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   35.832246][  T247]  vti_init_net (net/ipv4/ip_vti.c:517)
[   35.832377][  T247]  ops_init (net/core/net_namespace.c:137)
[   35.832478][  T247]  setup_net (net/core/net_namespace.c:446)
[   35.832576][  T247]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   35.832711][  T247]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   35.832844][  T247]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   35.832976][  T247]  copy_net_ns (net/core/net_namespace.c:579)
[   35.833106][  T247]  create_new_namespaces (kernel/nsproxy.c:132)
[   35.833240][  T247]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   35.833370][  T247]  ksys_unshare (kernel/fork.c:3243)
[   35.833499][  T247]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   35.833628][  T247]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   35.833764][  T247]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.833894][  T247]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   35.834024][  T247]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.834153][  T247]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   35.834283][  T247]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   35.834411][  T247]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   35.834540][  T247]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   35.834674][  T247]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   35.834809][  T247]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.834969][  T247] RIP: 0033:0x7fa0a8f22bcb
[   35.835104][  T247] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   35.835565][  T247] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   35.835768][  T247] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   35.835962][  T247] RDX: 00000000004065e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   35.836155][  T247] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   35.836347][  T247] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   35.836541][  T247] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   35.840541][  T247] ------------[ cut here ]------------
| [   35.840678][  T247] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/247
| [   35.840935][  T247] Modules linked in:
| [   35.841326][  T247] Tainted: [W]=WARN
[   35.841422][  T247] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.841582][  T247] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.841760][  T247] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.842213][  T247] RSP: 0018:ffa00000008f7a78 EFLAGS: 00010286
[   35.842378][  T247] RAX: 00000000ffffffa6 RBX: ff110000028a8200 RCX: 1ff400000011ef15
[   35.842569][  T247] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000028a82bc
[   35.842771][  T247] RBP: ff11000010829000 R08: 1fe2200000515059 R09: ff11000010025180
[   35.842961][  T247] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   35.843152][  T247] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000010829000
[   35.843346][  T247] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   35.843573][  T247] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.843788][  T247] CR2: 00007fa0a8f22bc0 CR3: 0000000008f11001 CR4: 0000000000771ef0
[   35.843982][  T247] PKRU: 55555554
[   35.844077][  T247] Call Trace:
[   35.844172][  T247]  <TASK>
[   35.844238][  T247]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.844367][  T247]  ? notifier_call_chain (kernel/notifier.c:85)
[   35.844496][  T247]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.844595][  T247]  register_netdevice (net/core/dev.c:11488)
[   35.844729][  T247]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   35.844893][  T247]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.845026][  T247]  register_netdev (net/core/dev.c:11552)
[   35.845156][  T247]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   35.845288][  T247]  ops_init (net/core/net_namespace.c:137)
[   35.845386][  T247]  setup_net (net/core/net_namespace.c:446)
[   35.845487][  T247]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   35.845616][  T247]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   35.845752][  T247]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   35.845884][  T247]  copy_net_ns (net/core/net_namespace.c:579)
[   35.846014][  T247]  create_new_namespaces (kernel/nsproxy.c:132)
[   35.846146][  T247]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   35.846275][  T247]  ksys_unshare (kernel/fork.c:3243)
[   35.846405][  T247]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   35.846533][  T247]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   35.846664][  T247]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.846798][  T247]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   35.846927][  T247]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.847056][  T247]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   35.847184][  T247]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   35.847314][  T247]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   35.847442][  T247]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   35.847572][  T247]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   35.847705][  T247]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.847870][  T247] RIP: 0033:0x7fa0a8f22bcb
[   35.848003][  T247] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   35.848462][  T247] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   35.848658][  T247] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   35.848856][  T247] RDX: 00000000004065e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   35.849046][  T247] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   35.849239][  T247] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   35.849431][  T247] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   35.853441][  T247] ------------[ cut here ]------------
| [   35.853569][  T247] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/247
| [   35.853831][  T247] Modules linked in:
| [   35.854219][  T247] Tainted: [W]=WARN
[   35.854317][  T247] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.854478][  T247] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.854646][  T247] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.855114][  T247] RSP: 0018:ffa00000008f7a68 EFLAGS: 00010286
[   35.855276][  T247] RAX: 00000000ffffffa6 RBX: ff1100000d9b5700 RCX: 1ff400000011ef13
[   35.855470][  T247] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d9b57bc
[   35.855665][  T247] RBP: ff1100000f18c000 R08: 1fe2200001b36af9 R09: ff11000010025180
[   35.855863][  T247] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   35.856057][  T247] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f18c000
[   35.856250][  T247] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   35.856473][  T247] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.856635][  T247] CR2: 00007fa0a8f22bc0 CR3: 0000000008f11001 CR4: 0000000000771ef0
[   35.856840][  T247] PKRU: 55555554
[   35.856935][  T247] Call Trace:
[   35.857031][  T247]  <TASK>
[   35.857099][  T247]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.857227][  T247]  ? notifier_call_chain (kernel/notifier.c:85)
[   35.857447][  T247]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.857546][  T247]  register_netdevice (net/core/dev.c:11488)
[   35.857681][  T247]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   35.857855][  T247]  register_netdev (net/core/dev.c:11552)
[   35.858073][  T247]  sit_init_net (net/ipv6/sit.c:1860)
[   35.858204][  T247]  ops_init (net/core/net_namespace.c:137)
[   35.858302][  T247]  setup_net (net/core/net_namespace.c:446)
[   35.858401][  T247]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   35.858617][  T247]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   35.858756][  T247]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   35.858888][  T247]  copy_net_ns (net/core/net_namespace.c:579)
[   35.859019][  T247]  create_new_namespaces (kernel/nsproxy.c:132)
[   35.859236][  T247]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   35.859368][  T247]  ksys_unshare (kernel/fork.c:3243)
[   35.859496][  T247]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   35.859624][  T247]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   35.859761][  T247]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.859894][  T247]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   35.860025][  T247]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.860155][  T247]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   35.860370][  T247]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   35.860499][  T247]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   35.860628][  T247]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   35.860766][  T247]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   35.860982][  T247]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.861143][  T247] RIP: 0033:0x7fa0a8f22bcb
[   35.861276][  T247] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   35.861836][  T247] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   35.862030][  T247] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   35.862312][  T247] RDX: 00000000004065e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   35.862506][  T247] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   35.862701][  T247] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   35.862987][  T247] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   35.874030][  T247] ------------[ cut here ]------------
| [   35.874172][  T247] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: scm_rights/247
| [   35.874429][  T247] Modules linked in:
| [   35.874873][  T247] Tainted: [W]=WARN
[   35.874973][  T247] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.875133][  T247] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.875300][  T247] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.875771][  T247] RSP: 0018:ffa00000008f7a78 EFLAGS: 00010286
[   35.875934][  T247] RAX: 00000000ffffffa6 RBX: ff1100000d8bae40 RCX: 1ff400000011ef15
[   35.876127][  T247] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d8baefc
[   35.876320][  T247] RBP: ff1100000d2f9000 R08: 1fe2200001b175e1 R09: ff11000010025180
[   35.876512][  T247] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   35.876708][  T247] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000d2f9000
[   35.876907][  T247] FS:  00007fa0a8e27740(0000) GS:ff110000cc047000(0000) knlGS:0000000000000000
[   35.877132][  T247] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.877293][  T247] CR2: 00007fa0a8f22bc0 CR3: 0000000008f11001 CR4: 0000000000771ef0
[   35.877486][  T247] PKRU: 55555554
[   35.877582][  T247] Call Trace:
[   35.877682][  T247]  <TASK>
[   35.877752][  T247]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.877881][  T247]  ? notifier_call_chain (kernel/notifier.c:85)
[   35.878012][  T247]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.878109][  T247]  register_netdevice (net/core/dev.c:11488)
[   35.878240][  T247]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   35.878401][  T247]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.878533][  T247]  register_netdev (net/core/dev.c:11552)
[   35.878666][  T247]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   35.878801][  T247]  ops_init (net/core/net_namespace.c:137)
[   35.878901][  T247]  setup_net (net/core/net_namespace.c:446)
[   35.878999][  T247]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   35.879127][  T247]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   35.879256][  T247]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   35.879387][  T247]  copy_net_ns (net/core/net_namespace.c:579)
[   35.879517][  T247]  create_new_namespaces (kernel/nsproxy.c:132)
[   35.879648][  T247]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   35.879788][  T247]  ksys_unshare (kernel/fork.c:3243)
[   35.879917][  T247]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   35.880045][  T247]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   35.880175][  T247]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.880304][  T247]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[   35.880434][  T247]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.880564][  T247]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   35.880697][  T247]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   35.880832][  T247]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   35.880962][  T247]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   35.881091][  T247]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   35.881220][  T247]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.881379][  T247] RIP: 0033:0x7fa0a8f22bcb
[   35.881513][  T247] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   35.881977][  T247] RSP: 002b:00007ffea0d17348 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   35.882169][  T247] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0a8f22bcb
[   35.882359][  T247] RDX: 00000000004065e0 RSI: 00007ffea0d173e0 RDI: 0000000040000000
[   35.882552][  T247] RBP: 00007ffea0d173b0 R08: 00007fa0a901cb20 R09: 0000000000000000
[   35.882753][  T247] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffea0d17ab8
[   35.882945][  T247] R13: 0000000000000001 R14: 00007fa0a906b000 R15: 0000000000408e00
| [   35.898409][   T12] ------------[ cut here ]------------
| [   35.898536][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   35.898774][   T12] Modules linked in:
| [   35.899124][   T12] Tainted: [W]=WARN
[   35.899211][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.899354][   T12] Workqueue: netns cleanup_net
[   35.899474][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.899624][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.900050][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   35.900193][   T12] RAX: 00000000ffffffa6 RBX: ff1100000e50e740 RCX: 1ff4000000018eed
[   35.900369][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e50e7fc
[   35.900540][   T12] RBP: ff1100000d2f9000 R08: 1fe2200001ca1d01 R09: ff11000001aed1d0
[   35.900719][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   35.900896][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.901071][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   35.901274][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.901417][   T12] CR2: 00007fa0a901cb20 CR3: 00000000108eb003 CR4: 0000000000771ef0
[   35.901591][   T12] PKRU: 55555554
[   35.901682][   T12] Call Trace:
[   35.901774][   T12]  <TASK>
[   35.901836][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.906764][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.907784][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   35.907928][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   35.908049][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   35.908166][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   35.908284][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.908405][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   35.908528][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   35.908645][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.908782][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   35.908901][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.909016][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.909134][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.910228][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.910369][   T12]  process_one_work (kernel/workqueue.c:3314)
[   35.910494][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.910609][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.910752][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.911234][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.911443][   T12]  kthread (kernel/kthread.c:436)
[   35.912671][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.912862][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.912979][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.913095][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.913242][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.913359][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.913476][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.921960][   T12] ------------[ cut here ]------------
| [   35.922156][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   35.922456][   T12] Modules linked in:
| [   35.922831][   T12] Tainted: [W]=WARN
[   35.922920][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.923063][   T12] Workqueue: netns cleanup_net
[   35.923191][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.923340][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.923766][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   35.923916][   T12] RAX: 00000000ffffffa6 RBX: ff1100000e50e040 RCX: 1ff4000000018eed
[   35.924091][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e50e0fc
[   35.924263][   T12] RBP: ff1100000f18c000 R08: 1fe2200001ca1c21 R09: ff11000001aed1d0
[   35.924435][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   35.924686][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.924867][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   35.925071][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.925216][   T12] CR2: 00007fa0a901cb20 CR3: 0000000044d4d001 CR4: 0000000000771ef0
[   35.925388][   T12] PKRU: 55555554
[   35.925473][   T12] Call Trace:
[   35.925558][   T12]  <TASK>
[   35.925618][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.925896][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.926185][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   35.926373][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   35.926491][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   35.926608][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   35.926874][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.926996][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   35.927120][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   35.927237][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.927362][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   35.927480][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.927599][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.927721][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.927952][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.928072][   T12]  process_one_work (kernel/workqueue.c:3314)
[   35.928193][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.928311][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.928432][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.928551][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.928670][   T12]  kthread (kernel/kthread.c:436)
[   35.928830][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.928973][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.929091][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.929213][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.929356][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.929472][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.929587][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.932778][   T12] ------------[ cut here ]------------
| [   35.932897][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   35.933134][   T12] Modules linked in:
| [   35.933482][   T12] Tainted: [W]=WARN
[   35.933569][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.933721][   T12] Workqueue: netns cleanup_net
[   35.933850][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.934000][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.934410][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   35.934554][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c4bee40 RCX: 1ff4000000018eed
[   35.934739][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c4beefc
[   35.934911][   T12] RBP: ff11000010829000 R08: 1fe2200001897de1 R09: ff11000001aed1d0
[   35.935083][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   35.935253][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.935431][   T12] FS:  0000000000000000(0000) GS:ff110000cbec7000(0000) knlGS:0000000000000000
[   35.935632][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.935869][   T12] CR2: 00007fa0a901cb20 CR3: 0000000044d4d001 CR4: 0000000000771ef0
[   35.936045][   T12] PKRU: 55555554
[   35.936133][   T12] Call Trace:
[   35.936225][   T12]  <TASK>
[   35.936286][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.936439][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.936583][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   35.936703][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   35.936874][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   35.936993][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   35.937109][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.937228][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   35.937347][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   35.937463][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.937587][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   35.937708][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.937871][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.937987][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.938101][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.938218][   T12]  process_one_work (kernel/workqueue.c:3314)
[   35.938337][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.938453][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.938573][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.938698][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.938862][   T12]  kthread (kernel/kthread.c:436)
[   35.938948][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.939091][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.939207][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.939323][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.939468][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.939584][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.939706][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.942762][   T12] ------------[ cut here ]------------
| [   35.942887][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   35.943113][   T12] Modules linked in:
| [   35.943462][   T12] Tainted: [W]=WARN
[   35.943549][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.943699][   T12] Workqueue: netns cleanup_net
[   35.943828][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.943978][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.944388][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   35.944533][   T12] RAX: 00000000ffffffa6 RBX: ff11000010846c80 RCX: 1ff4000000018eed
[   35.944715][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000010846d3c
[   35.944897][   T12] RBP: ff1100000fe39000 R08: 1fe2200002108da9 R09: ff11000001aed1d0
[   35.945072][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   35.945249][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.945422][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   35.945629][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.945783][   T12] CR2: 00007f743c64f770 CR3: 0000000044d4d003 CR4: 0000000000771ef0
[   35.945956][   T12] PKRU: 55555554
[   35.946041][   T12] Call Trace:
[   35.946128][   T12]  <TASK>
[   35.946190][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.946337][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.946486][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   35.946608][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   35.946727][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   35.946848][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   35.946965][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.947082][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   35.947199][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   35.947314][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.947436][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   35.947552][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.947673][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.947794][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.947911][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.948030][   T12]  process_one_work (kernel/workqueue.c:3314)
[   35.948148][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.948263][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.948382][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.948501][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.948616][   T12]  kthread (kernel/kthread.c:436)
[   35.948707][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.948856][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.948975][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.949091][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.949233][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.949347][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.949461][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.951397][   T12] ------------[ cut here ]------------
| [   35.951509][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   35.952484][   T12] Modules linked in:
| [   35.952917][   T12] Tainted: [W]=WARN
[   35.953004][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.953146][   T12] Workqueue: netns cleanup_net
[   35.953265][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.953413][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.953917][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   35.954067][   T12] RAX: 00000000ffffffa6 RBX: ff11000009424580 RCX: 1ff4000000018eed
[   35.954237][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000942463c
[   35.954413][   T12] RBP: ff11000010bb1000 R08: 1fe22000012848c9 R09: ff11000001aed1d0
[   35.954678][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   35.954932][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.955105][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   35.955307][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.955452][   T12] CR2: 00007f743c64f770 CR3: 0000000044d4d003 CR4: 0000000000771ef0
[   35.955626][   T12] PKRU: 55555554
[   35.955715][   T12] Call Trace:
[   35.955855][   T12]  <TASK>
[   35.955916][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.956063][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.956212][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   35.956334][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   35.956451][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   35.956567][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   35.956694][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.956817][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   35.956936][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   35.957050][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.957169][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   35.957290][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.957405][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.957521][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.957637][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.957765][   T12]  process_one_work (kernel/workqueue.c:3314)
[   35.957885][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.957999][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.958120][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.958239][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.958355][   T12]  kthread (kernel/kthread.c:436)
[   35.958443][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.958587][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.958708][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.958828][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.958971][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.959086][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.959203][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.972161][   T12] ------------[ cut here ]------------
| [   35.972296][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   35.972537][   T12] Modules linked in:
| [   35.972909][   T12] Tainted: [W]=WARN
[   35.972998][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.973159][   T12] Workqueue: netns cleanup_net
[   35.973283][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.973438][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.973920][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   35.974106][   T12] RAX: 00000000ffffffa6 RBX: ff11000009424c80 RCX: 1ff4000000018ed5
[   35.974281][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009424d3c
[   35.974457][   T12] RBP: ff1100000f369000 R08: 1fe22000012849a9 R09: ff11000001aed1d0
[   35.974631][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   35.974874][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.975052][   T12] FS:  0000000000000000(0000) GS:ff110000cbf47000(0000) knlGS:0000000000000000
[   35.975256][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.975403][   T12] CR2: 00007f743c64f770 CR3: 0000000044d4d003 CR4: 0000000000771ef0
[   35.975580][   T12] PKRU: 55555554
[   35.975673][   T12] Call Trace:
[   35.975810][   T12]  <TASK>
[   35.975872][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.976071][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.976220][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   35.976341][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   35.976459][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   35.976577][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   35.976698][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   35.976866][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   35.976986][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   35.977101][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.977223][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   35.977343][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.977459][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.977577][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.977696][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.977863][   T12]  process_one_work (kernel/workqueue.c:3314)
[   35.977983][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.978104][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.978225][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.978345][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.978463][   T12]  kthread (kernel/kthread.c:436)
[   35.978551][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.978702][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.978868][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.978986][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.979132][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.979249][   T12]  ? kthread_affine_node (kernel/kthread.c:378)


Finger prints:
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:register_netdevice:register_netdev:sit_init_net
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:register_netdevice:register_netdev:loopback_net_init
rtmsg_ifinfo_build_skb:unregister_netdevice_many_notify:ops_undo_list:cleanup_net:process_one_work
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